{"id":20628,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/axial-fan-defects\/"},"modified":"2026-05-23T22:44:50","modified_gmt":"2026-05-23T22:44:50","slug":"axial-fan-defects","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/mr\/glossary\/axial-fan-defects\/","title":{"rendered":"What are Axial Fan Defects? Blade and Flow Problems"},"content":{"rendered":"<h1>\u0905\u0915\u094d\u0937\u0940\u092f \u092b\u0945\u0928 \u0926\u094b\u0937 \u0938\u092e\u091c\u0942\u0928 \u0918\u0947\u0923\u0947<\/h1>\n\t\t<section class=\"woocommerce hestia-shop products is-shortcode\" id=\"products\" data-sorder=\"hestia_shop\" >\n\t\t\t\t\t\t<div class=\"\">\n\t\t\t\t\t\t<div class=\"hestia-shop-content\">\n\t\t\t<div class=\"row\" data-aos=\"fade-up\" >\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/mr\/product\/balanset-1\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/mr\/product\/balanset-1\/\" title=\"\u092a\u094b\u0930\u094d\u091f\u0947\u092c\u0932 \u092c\u0945\u0932\u0928\u094d\u0938\u0930 \u0906\u0923\u093f \u0915\u0902\u092a\u0928 \u0935\u093f\u0936\u094d\u0932\u0947\u0937\u0915 Balanset-1A\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Balanset-1A \u0938\u0902\u092a\u0942\u0930\u094d\u0923 \u0915\u093f\u091f \u092a\u094b\u0930\u094d\u091f\u0947\u092c\u0932 \u0938\u0902\u0924\u0941\u0932\u0915 \u0906\u0923\u093f \u0915\u0902\u092a\u0928 \u0935\u093f\u0936\u094d\u0932\u0947\u0937\u0915\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-272x182.webp 272w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/mr\/product-category\/devices\/\" rel=\"tag\">Devices<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/mr\/product\/balanset-1\/\" title=\"\u092a\u094b\u0930\u094d\u091f\u0947\u092c\u0932 \u092c\u0945\u0932\u0928\u094d\u0938\u0930 \u0906\u0923\u093f \u0915\u0902\u092a\u0928 \u0935\u093f\u0936\u094d\u0932\u0947\u0937\u0915 Balanset-1A\">\u092a\u094b\u0930\u094d\u091f\u0947\u092c\u0932 \u092c\u0945\u0932\u0947\u0928\u094d\u0938\u0930 &#038; \u0935\u094d\u0939\u093e\u092f\u092c\u094d\u0930\u0947\u0936\u0928 \u0905\u200d\u0945\u0928\u093e\u0932\u093e\u092f\u091d\u0930 Balanset-1A<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">&euro;<\/span>1,975.00<\/span> + VAT (\u0932\u093e\u0917\u0942 \u0905\u0938\u0932\u094d\u092f\u093e\u0938)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/mr\/wp-json\/wp\/v2\/glossary\/20628?add-to-cart=986\" data-quantity=\"1\" data-product_id=\"986\" data-product_sku=\"BS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Add to cart\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Add to cart\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/mr\/wp-json\/wp\/v2\/glossary\/20628?add-to-cart=986\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_986\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"986\" data-product_sku=\"BS-1\" aria-label=\"Add to cart: \u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"\u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d has been added to your cart\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Add to cart<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_986\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/mr\/product\/vibration-sensor\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/mr\/product\/vibration-sensor\/\" title=\"\u0915\u0902\u092a\u0928 \u0938\u0902\u0935\u0947\u0926\u0915\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Balanset-1A \u0915\u0902\u092a\u0928 \u0938\u0902\u0935\u0947\u0926\u0928\u0936\u0940\u0932 \u091c\u0935\u0933\u0942\u0928\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3.webp 1280w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/mr\/product-category\/parts\/\" rel=\"tag\">Parts<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/mr\/product\/vibration-sensor\/\" title=\"\u0915\u0902\u092a\u0928 \u0938\u0902\u0935\u0947\u0926\u0915\">\u0915\u0902\u092a\u0928 \u0938\u0902\u0935\u0947\u0926\u0915<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">&euro;<\/span>90.00<\/span> + VAT (\u0932\u093e\u0917\u0942 \u0905\u0938\u0932\u094d\u092f\u093e\u0938)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/mr\/wp-json\/wp\/v2\/glossary\/20628?add-to-cart=1820\" data-quantity=\"1\" data-product_id=\"1820\" data-product_sku=\"VS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Add to cart\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Add to cart\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/mr\/wp-json\/wp\/v2\/glossary\/20628?add-to-cart=1820\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1820\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1820\" data-product_sku=\"VS-1\" aria-label=\"Add to cart: \u201cVibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"\u201cVibration sensor\u201d has been added to your cart\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Add to cart<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1820\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/mr\/product\/optical-sensor-for-balanset-and-arbalance\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/mr\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"\u0911\u092a\u094d\u091f\u093f\u0915\u0932 \u0938\u0947\u0928\u094d\u0938\u0930 (\u0932\u0947\u091d\u0930 \u091f\u0945\u0915\u094b\u092e\u0940\u091f\u0930)\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"\u0911\u092a\u094d\u091f\u093f\u0915\u0932 \u0938\u0947\u0928\u094d\u0938\u0930 (\u0932\u0947\u091d\u0930 \u091f\u0945\u0915\u094b\u092e\u0940\u091f\u0930)\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-1536x1023.webp 1536w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU.webp 1600w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/mr\/product-category\/parts\/\" rel=\"tag\">Parts<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/mr\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"\u0911\u092a\u094d\u091f\u093f\u0915\u0932 \u0938\u0947\u0928\u094d\u0938\u0930 (\u0932\u0947\u091d\u0930 \u091f\u0945\u0915\u094b\u092e\u0940\u091f\u0930)\">\u0911\u092a\u094d\u091f\u093f\u0915\u0932 \u0938\u0947\u0928\u094d\u0938\u0930 (\u0932\u0947\u091d\u0930 \u091f\u0945\u0915\u094b\u092e\u0940\u091f\u0930)<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">&euro;<\/span>124.00<\/span> + VAT (\u0932\u093e\u0917\u0942 \u0905\u0938\u0932\u094d\u092f\u093e\u0938)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/mr\/wp-json\/wp\/v2\/glossary\/20628?add-to-cart=1832\" data-quantity=\"1\" data-product_id=\"1832\" data-product_sku=\"Tach-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Add to cart\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Add to cart\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/mr\/wp-json\/wp\/v2\/glossary\/20628?add-to-cart=1832\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1832\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1832\" data-product_sku=\"Tach-1\" aria-label=\"Add to cart: \u201cOptical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"\u201cOptical Sensor (Laser Tachometer)\u201d has been added to your cart\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Add to cart<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1832\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/mr\/product\/balanset-4\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/mr\/product\/balanset-4\/\" title=\"Balanset-4\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Vibromera \u0930\u094b\u091f\u0930 \u0938\u0902\u0924\u0941\u0932\u0928 \u0915\u093f\u091f: \u0935\u0939\u0928 \u0915\u0947\u0938, \u092c\u0939\u0941-\u091a\u0945\u0928\u0932 \u0938\u093f\u0917\u094d\u0928\u0932 \u0915\u0902\u0921\u093f\u0936\u0928\u0930, \u0939\u093e\u0925 \u092a\u0915\u0921\u0928\u0947 \u0935\u093e\u0932\u0940 \u0935\u093f\u0936\u094d\u0932\u0947\u0937\u0915, \u091a\u0941\u0902\u092c\u0915\u0940\u092f \u0906\u0927\u093e\u0930, \u0915\u0902\u092a\u0928 \u0938\u0902\u0935\u0947\u0926\u0915, \u0906\u0923\u093f \u0915\u0949\u0907\u0932 \u0915\u0947\u092c\u0932.\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4.webp 640w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/mr\/product-category\/devices\/\" rel=\"tag\">Devices<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/mr\/product\/balanset-4\/\" title=\"Balanset-4\">Balanset-4<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">&euro;<\/span>6,803.00<\/span> + VAT (\u0932\u093e\u0917\u0942 \u0905\u0938\u0932\u094d\u092f\u093e\u0938)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/mr\/wp-json\/wp\/v2\/glossary\/20628?add-to-cart=1833\" data-quantity=\"1\" data-product_id=\"1833\" data-product_sku=\"BS-4\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Add to cart\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Add to cart\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/mr\/wp-json\/wp\/v2\/glossary\/20628?add-to-cart=1833\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1833\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1833\" data-product_sku=\"BS-4\" aria-label=\"Add to cart: \u201cBalanset-4\u201d\" rel=\"nofollow\" data-success_message=\"\u201cBalanset-4\u201d has been added to your cart\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Add to cart<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1833\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div><!-- \/.row --><div class=\"row\">\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/mr\/product\/magnet-stand\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/mr\/product\/magnet-stand\/\" title=\"\u092e\u0945\u0917\u094d\u0928\u0947\u091f\u093f\u0915 \u0938\u094d\u091f\u0901\u0921 Insize-60-kgf\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Magnet base.\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36.webp 1280w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/mr\/product-category\/parts\/\" rel=\"tag\">Parts<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/mr\/product\/magnet-stand\/\" title=\"\u092e\u0945\u0917\u094d\u0928\u0947\u091f\u093f\u0915 \u0938\u094d\u091f\u0901\u0921 Insize-60-kgf\">\u092e\u0945\u0917\u094d\u0928\u0947\u091f\u093f\u0915 \u0938\u094d\u091f\u0901\u0921 Insize-60-kgf<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">&euro;<\/span>46.00<\/span> + VAT (\u0932\u093e\u0917\u0942 \u0905\u0938\u0932\u094d\u092f\u093e\u0938)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/mr\/wp-json\/wp\/v2\/glossary\/20628?add-to-cart=1852\" data-quantity=\"1\" data-product_id=\"1852\" data-product_sku=\"MS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Add to cart\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Add to cart\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/mr\/wp-json\/wp\/v2\/glossary\/20628?add-to-cart=1852\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1852\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1852\" data-product_sku=\"MS-1\" aria-label=\"Add to cart: \u201cMagnetic Stand Insize-60-kgf\u201d\" rel=\"nofollow\" data-success_message=\"\u201cMagnetic Stand Insize-60-kgf\u201d has been added to your cart\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Add to cart<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1852\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/mr\/product\/reflective-tape\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/mr\/product\/reflective-tape\/\" title=\"\u092a\u0930\u093e\u0935\u0930\u094d\u0924\u0915 \u091f\u0947\u092a\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"\u092a\u0930\u093e\u0935\u0930\u094d\u0924\u0915 \u091f\u0947\u092a\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-16x12.webp 16w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-272x182.webp 272w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/mr\/product-category\/parts\/\" rel=\"tag\">Parts<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/mr\/product\/reflective-tape\/\" title=\"\u092a\u0930\u093e\u0935\u0930\u094d\u0924\u0915 \u091f\u0947\u092a\">\u092a\u0930\u093e\u0935\u0930\u094d\u0924\u0915 \u091f\u0947\u092a<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">&euro;<\/span>10.00<\/span> + VAT (\u0932\u093e\u0917\u0942 \u0905\u0938\u0932\u094d\u092f\u093e\u0938)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/mr\/wp-json\/wp\/v2\/glossary\/20628?add-to-cart=2329\" data-quantity=\"1\" data-product_id=\"2329\" data-product_sku=\"rt-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Add to cart\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Add to cart\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/mr\/wp-json\/wp\/v2\/glossary\/20628?add-to-cart=2329\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_2329\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"2329\" data-product_sku=\"rt-1\" aria-label=\"Add to cart: \u201cReflective tape\u201d\" rel=\"nofollow\" data-success_message=\"\u201cReflective tape\u201d has been added to your cart\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Add to cart<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_2329\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/mr\/product\/dynamic-balancer-balanset-1a\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/mr\/product\/dynamic-balancer-balanset-1a\/\" title=\"\u0921\u093e\u092f\u0928\u093e\u092e\u093f\u0915 \u092c\u0945\u0932\u0928\u094d\u0938\u0930 \u201cBalanset-1A\u201d OEM\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Balanset-1A \u0915\u093f\u091f \u0938\u093e\u092e\u0917\u094d\u0930\u0940 \u0907\u0902\u091f\u0930\u092b\u0947\u0938 \u092f\u0941\u0928\u093f\u091f, \u0938\u0902\u0935\u0947\u0926\u0915, \u091f\u0945\u0915\u094b\u092e\u0940\u091f\u0930 \u0906\u0923\u093f \u0905\u0928\u0941\u0937\u0902\u0917\u0940 \u0938\u0939\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-1024x683.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-1536x1024.webp 1536w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-2048x1366.webp 2048w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-e1732998877834.webp 708w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/mr\/product-category\/devices\/\" rel=\"tag\">Devices<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/mr\/product\/dynamic-balancer-balanset-1a\/\" title=\"\u0921\u093e\u092f\u0928\u093e\u092e\u093f\u0915 \u092c\u0945\u0932\u0928\u094d\u0938\u0930 \u201cBalanset-1A\u201d OEM\">\u0921\u093e\u092f\u0928\u093e\u092e\u093f\u0915 \u092c\u0945\u0932\u0928\u094d\u0938\u0930 \u201cBalanset-1A\u201d OEM<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">&euro;<\/span>1,735.00<\/span> + VAT (\u0932\u093e\u0917\u0942 \u0905\u0938\u0932\u094d\u092f\u093e\u0938)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/mr\/wp-json\/wp\/v2\/glossary\/20628?add-to-cart=4193\" data-quantity=\"1\" data-product_id=\"4193\" data-product_sku=\"BS-1OEM\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Add to cart\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Add to cart\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/mr\/wp-json\/wp\/v2\/glossary\/20628?add-to-cart=4193\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_4193\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"4193\" data-product_sku=\"BS-1OEM\" aria-label=\"Add to cart: \u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"\u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d has been added to your cart\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Add to cart<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_4193\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/section>\n\t\t\n<p><strong>\u0905\u0915\u094d\u0937\u0940\u092f \u092a\u0902\u0916\u0947 \u0926\u094b\u0937<\/strong> \u0939\u0947 axial-flow fans \u0938\u093e\u0920\u0940 \u0935\u093f\u0936\u093f\u0937\u094d\u091f \u0926\u094b\u0937 \u0906\u0939\u0947\u0924, \u091c\u094d\u092f\u093e\u0924 \u0939\u0935\u093e propeller-like <a href=\"https:\/\/vibromera.eu\/mr\/glossary\/rotor\/\">rotor<\/a>\u092e\u093e\u0930\u094d\u0917\u0947 \u0936\u093e\u092b\u094d\u091f \u0905\u0915\u094d\u0937\u093e\u0936\u0940 \u0938\u092e\u093e\u0902\u0924\u0930 \u0939\u093e\u0932\u091a\u093e\u0932 \u0915\u0930\u0924\u0947. \u092f\u093e\u092e\u0927\u094d\u092f\u0947 blade pitch-angle errors, tip-clearance degradation, blade <a href=\"https:\/\/vibromera.eu\/mr\/glossary\/fatigue\/\">\u0925\u0915\u0935\u093e<\/a> \u0935\u093e\u0915\u0923\u0947 \u0935 cracking, hub-attachment failures, rotating stall \u0906\u0923\u093f aerodynamic resonances \u092f\u093e\u0902\u091a\u093e \u0938\u092e\u093e\u0935\u0947\u0936 \u0939\u094b\u0924\u094b. Axial fans \u0939\u0947 centrifugal fans \u092a\u0947\u0915\u094d\u0937\u093e flow path \u0906\u0923\u093f force distribution \u092e\u0927\u094d\u092f\u0947 \u0935\u0947\u0917\u0933\u0947 \u0905\u0938\u0924\u093e\u0924, \u0924\u094d\u092f\u093e\u092e\u0941\u0933\u0947 blade twist, tip-leakage flow \u0906\u0923\u093f \u092c\u0926\u0932\u0924\u094d\u092f\u093e axial thrust \u0936\u0940 \u0938\u0902\u092c\u0902\u0927\u093f\u0924 \u0916\u093e\u0938 failure modes \u0926\u093f\u0938\u0924\u093e\u0924. \u0924\u0947 <a href=\"https:\/\/vibromera.eu\/mr\/glossary\/fan-defects\/\">\u092b\u0945\u0928 \u0926\u094b\u0937<\/a> \u092f\u093e \u0935\u094d\u092f\u093e\u092a\u0915 \u0915\u0941\u091f\u0941\u0902\u092c\u093e\u0924 \u092e\u094b\u0921\u0924\u093e\u0924,<\/p>\n<p>\u092a\u0923 \u0924\u094d\u092f\u093e\u0902\u091a\u094d\u092f\u093e\u0938\u093e\u0920\u0940 \u0938\u094d\u0935\u0924\u0902\u0924\u094d\u0930 diagnostic approach \u0906\u0935\u0936\u094d\u092f\u0915 \u0905\u0938\u0924\u094b. HVAC systems, cooling towers, power-plant draft fans \u0906\u0923\u093f industrial ventilation \u092e\u0927\u094d\u092f\u0947 axial fans \u0938\u0930\u094d\u0935\u0924\u094d\u0930 \u0906\u0922\u0933\u0924\u093e\u0924. \u0924\u094d\u092f\u093e\u0902\u091a\u093e \u092e\u094b\u0920\u093e \u0935\u094d\u092f\u093e\u0938 \u0906\u0923\u093f \u0924\u0941\u0932\u0928\u0947\u0928\u0947 \u0939\u0932\u0915\u094d\u092f\u093e blades \u092f\u093e\u0902\u092e\u0941\u0933\u0947 \u0924\u0947 vibration-induced fatigue \u0906\u0923\u093f aerodynamic instabilities \u0938\u093e\u0920\u0940 \u0935\u093f\u0936\u0947\u0937\u0924\u0903 \u0938\u0902\u0935\u0947\u0926\u0928\u0936\u0940\u0932 \u0905\u0938\u0924\u093e\u0924 \u2014 \u0905\u0938\u0947 \u092a\u094d\u0930\u0936\u094d\u0928 <a href=\"https:\/\/vibromera.eu\/mr\/glossary\/vibration-analysis\/\">\u0915\u0902\u092a\u0928 \u0935\u093f\u0936\u094d\u0932\u0947\u0937\u0923<\/a> \u092e\u0927\u094d\u092f\u0947 \u092f\u094b\u0917\u094d\u092f signatures \u092e\u093e\u0939\u093f\u0924 \u0905\u0938\u0924\u0940\u0932 \u0924\u0930 \u0938\u094d\u092a\u0937\u094d\u091f\u092a\u0923\u0947 \u0926\u093f\u0938\u0924\u093e\u0924.<\/p>\n<h2>1. \u092c\u094d\u0932\u0947\u0921 \u092a\u093f\u091a \u0906\u0923\u093f \u0915\u094b\u0928\u093e\u0924\u0940\u0932 \u0938\u092e\u0938\u094d\u092f\u093e<\/h2>\n<h3>\u091a\u0941\u0915\u0940\u091a\u0940 \u092a\u093f\u091a \u0938\u0947\u091f\u093f\u0902\u0917<\/h3>\n<ul>\n<li><strong>Adjustable-pitch fans:<\/strong> \u0915\u093e\u092e\u0917\u093f\u0930\u0940 \u091c\u0941\u0933\u0935\u0923\u094d\u092f\u093e\u0938\u093e\u0920\u0940 blade angle \u0938\u092e\u093e\u092f\u094b\u091c\u094d\u092f \u0905\u0938\u0924\u094b.<\/li>\n<li><strong>\u091a\u0941\u0915\u0940\u091a\u0947 \u0938\u092e\u093e\u092f\u094b\u091c\u0928:<\/strong> \u0915\u093e\u0930\u094d\u092f\u0938\u094d\u0925\u093f\u0924\u0940\u0938\u093e\u0920\u0940 \u091a\u0941\u0915\u0940\u091a\u094d\u092f\u093e \u0915\u094b\u0928\u093e\u0935\u0930 \u0938\u0947\u091f \u0915\u0947\u0932\u0947\u0932\u094d\u092f\u093e blades.<\/li>\n<li><strong>\u092a\u0930\u093f\u0923\u093e\u092e:<\/strong> \u0916\u0930\u093e\u092c \u0915\u093e\u092e\u0917\u093f\u0930\u0940, \u091c\u093e\u0938\u094d\u0924 vibration \u0906\u0923\u093f stall \u0939\u094b\u0923\u094d\u092f\u093e\u091a\u0940 \u092a\u094d\u0930\u0935\u0943\u0924\u094d\u0924\u0940.<\/li>\n<li><strong>Non-uniform setting:<\/strong> \u0935\u0947\u0917\u0935\u0947\u0917\u0933\u094d\u092f\u093e \u0915\u094b\u0928\u093e\u0902\u0935\u0930 \u0905\u0938\u0932\u0947\u0932\u094d\u092f\u093e blades \u092e\u0941\u0933\u0947 mass \u0906\u0923\u093f aerodynamic load \u0905\u0938\u092e\u093e\u0928 \u0935\u093f\u0924\u0930\u093f\u0924 \u0939\u094b\u0924\u093e\u0924, \u091c\u094d\u092f\u093e\u092e\u0941\u0933\u0947 <a href=\"https:\/\/vibromera.eu\/mr\/glossary\/unbalance\/\">unbalance<\/a>.<\/li>\n<\/ul>\n<h3>\u092c\u094d\u0932\u0947\u0921 \u091f\u094d\u0935\u093f\u0938\u094d\u091f \u0935\u093f\u0915\u0943\u0924\u0940<\/h3>\n<ul>\n<li>aerodynamic \u0915\u093f\u0902\u0935\u093e centrifugal loads \u092e\u0941\u0933\u0947 \u0915\u093e\u092f\u092e\u0938\u094d\u0935\u0930\u0942\u092a\u0940 \u0935\u093e\u0915\u0932\u0947\u0932\u094d\u092f\u093e blades.<\/li>\n<li>\u092c\u0926\u0932\u0932\u0947\u0932\u0947 flow angles, \u091c\u0947 \u0915\u093e\u092e\u0917\u093f\u0930\u0940 \u0915\u092e\u0940 \u0915\u0930\u0924\u093e\u0924.<\/li>\n<li>unbalance \u0928\u093f\u0930\u094d\u092e\u093e\u0923 \u0915\u0930\u0923\u093e\u0930\u093e \u0905\u0938\u092e\u092e\u093f\u0924 twist.<\/li>\n<li>rotor \u0935\u0930\u0940\u0932 \u0924\u093e\u092a\u092e\u093e\u0928 gradients \u092e\u0941\u0933\u0947 \u0939\u094b\u0923\u093e\u0930\u0940 thermal distortion.<\/li>\n<\/ul>\n<h2>2. \u091f\u093f\u092a \u0915\u094d\u0932\u0940\u092f\u0930\u0928\u094d\u0938 \u0938\u092e\u0938\u094d\u092f\u093e<\/h2>\n<h3>Axial Fans \u092e\u0927\u094d\u092f\u0947 Tip Clearance \u0915\u093e \u092e\u0939\u0924\u094d\u0924\u094d\u0935\u093e\u091a\u0940 \u0906\u0939\u0947<\/h3>\n<ul>\n<li>\u092a\u094d\u0930\u0935\u093e\u0939 blade tips \u0935\u0930\u0942\u0928 leak \u0939\u094b\u090a\u0928 tip vortices \u0924\u092f\u093e\u0930 \u0915\u0930\u0924\u094b.<\/li>\n<li>\u0915\u093e\u0930\u094d\u092f\u0915\u094d\u0937\u092e\u0924\u093e tip clearance \u092c\u093e\u092c\u0924\u0940\u0924 \u0905\u0924\u094d\u092f\u0902\u0924 \u0938\u0902\u0935\u0947\u0926\u0928\u0936\u0940\u0932 \u0905\u0938\u0924\u0947.<\/li>\n<li>clearance \u092e\u0927\u094d\u092f\u0947 \u092a\u094d\u0930\u0924\u094d\u092f\u0947\u0915 1% \u0935\u093e\u0922 \u091d\u093e\u0932\u094d\u092f\u093e\u0938 \u0938\u093e\u0927\u093e\u0930\u0923 1&ndash;2% \u0915\u093e\u0930\u094d\u092f\u0915\u094d\u0937\u092e\u0924\u093e \u0915\u092e\u0940 \u0939\u094b\u0924\u0947.<\/li>\n<li>clearance vibration \u0906\u0923\u093f acoustic performance \u0935\u0930\u0939\u0940 \u092a\u0930\u093f\u0923\u093e\u092e \u0915\u0930\u0924\u0947.<\/li>\n<\/ul>\n<h3>\u0905\u0924\u093f\u0930\u093f\u0915\u094d\u0924 \u0915\u094d\u0932\u0940\u092f\u0930\u0928\u094d\u0938<\/h3>\n<ul>\n<li><strong>\u0915\u093e\u0930\u0923\u0947:<\/strong> <a href=\"https:\/\/vibromera.eu\/mr\/glossary\/wear\/\">\u091d\u0940\u091c<\/a>\u0918\u093e\u0938\u0923\u0947, housing distortion, blade deflection \u0906\u0923\u093f thermal growth.<\/li>\n<li><strong>\u092a\u0930\u093f\u0923\u093e\u092e:<\/strong> \u0915\u093e\u092e\u0917\u093f\u0930\u0940\u0924\u0940\u0932 \u0918\u091f, \u0905\u0927\u093f\u0915 \u0924\u0940\u0935\u094d\u0930 tip vortices \u0906\u0923\u093f \u0935\u093e\u0922\u0932\u0947\u0932\u0940 vibration.<\/li>\n<li><strong>\u0938\u093e\u092e\u093e\u0928\u094d\u092f \u0928\u0935\u0940\u0928 clearance:<\/strong> blade span \u091a\u094d\u092f\u093e 0.5&ndash;1.5%.<\/li>\n<li><strong>\u0915\u093e\u0930\u0935\u093e\u0908 \u0906\u0935\u0936\u094d\u092f\u0915:<\/strong> span \u091a\u094d\u092f\u093e 3% \u092a\u0947\u0915\u094d\u0937\u093e \u091c\u093e\u0938\u094d\u0924 \u0905\u0938\u0932\u094d\u092f\u093e\u0938 fan \u0932\u093e replacement \u0915\u093f\u0902\u0935\u093e rebuild \u091a\u0940 \u0917\u0930\u091c \u0906\u0939\u0947.<\/li>\n<\/ul>\n<h3>\u091f\u093f\u092a \u0930\u092c\u094d\u0938<\/h3>\n<ul>\n<li>blade tips \u091a\u093e housing \u0936\u0940 \u0938\u0902\u092a\u0930\u094d\u0915.<\/li>\n<li>\u0905\u0924\u093f\u0930\u093f\u0915\u094d\u0924 <a href=\"https:\/\/vibromera.eu\/mr\/glossary\/vibration\/\">vibration<\/a>, \u0925\u0930\u094d\u092e\u0932 \u0935\u093e\u0922, \u0915\u093f\u0902\u0935\u093e <a href=\"https:\/\/vibromera.eu\/mr\/glossary\/misalignment\/\">misalignment<\/a>.<\/li>\n<li>\u092f\u093e\u092e\u0941\u0933\u0947 noise, vibration \u0906\u0923\u093f blade damage \u0928\u093f\u0930\u094d\u092e\u093e\u0923 \u0939\u094b\u0924\u0947 \u2014 \u0939\u093e <a href=\"https:\/\/vibromera.eu\/mr\/glossary\/rotor-rub\/\">\u0930\u094b\u091f\u0930 \u0918\u0930\u094d\u0937\u0923-\u0938\u094d\u092a\u0930\u094d\u0936<\/a>.<\/li>\n<li>\u091a\u093e \u0938\u094d\u0925\u093e\u0928\u093f\u0915 \u0938\u094d\u0935\u0930\u0942\u092a \u0906\u0939\u0947. blade tips \u0906\u0923\u093f housing \u092f\u093e \u0926\u094b\u0928\u094d\u0939\u0940\u0902\u0935\u0930 \u0926\u093f\u0938\u0923\u093e\u0930\u0947 wear marks \u0920\u0947\u0935\u0924\u094b.<\/li>\n<\/ul>\n<h2>3. \u092c\u094d\u0932\u0947\u0921 \u0938\u0902\u0930\u091a\u0928\u093e\u0924\u094d\u092e\u0915 \u0926\u094b\u0937<\/h2>\n<h3>\u0925\u0915\u0935\u094d\u092f\u093e\u092e\u0941\u0933\u0947 \u0924\u0921\u0947<\/h3>\n<ul>\n<li><strong>\u0938\u094d\u0925\u093e\u0928:<\/strong> blade root (\u091c\u093f\u0925\u0947 \u0924\u0940 hub \u0932\u093e \u091c\u094b\u0921\u0932\u0940 \u091c\u093e\u0924\u0947) \u0906\u0923\u093f leading edge \u092f\u0947\u0925\u0947.<\/li>\n<li><strong>\u0915\u093e\u0930\u0923:<\/strong> \u092a\u0930\u094d\u092f\u093e\u092f\u0940 aerodynamic loads, vibration \u0906\u0923\u093f <a href=\"https:\/\/vibromera.eu\/mr\/glossary\/blade-resonance\/\">\u092c\u094d\u0932\u0947\u0921 \u0930\u0947\u091c\u094b\u0928\u094d\u0938<\/a>.<\/li>\n<li><strong>\u0936\u094b\u0927:<\/strong> dye penetrant, magnetic particle \u0915\u093f\u0902\u0935\u093e ultrasonic <a href=\"https:\/\/vibromera.eu\/mr\/glossary\/non-destructive-testing\/\">\u0935\u093f\u0928\u093e\u0936\u0915\u093e\u0930\u0940 \u092a\u0930\u0940\u0915\u094d\u0937\u0923 \u092e\u094d\u0939\u0923\u0942\u0928<\/a>.<\/li>\n<li><strong>\u0917\u0902\u092d\u0940\u0930\u0924\u093e:<\/strong> \u0924\u092a\u093e\u0938\u0923\u0940; \u0926\u0941\u0930\u094d\u0932\u0915\u094d\u0937 \u0915\u0947\u0932\u094d\u092f\u093e\u0938 fatigue crack \u092a\u0941\u0922\u0947 \u091c\u093e\u090a\u0928 blade liberation \u2014 \u092e\u094d\u0939\u0923\u091c\u0947 \u0938\u0902\u092a\u0942\u0930\u094d\u0923 blade \u092b\u0947\u0915\u0932\u0940 \u091c\u093e\u0923\u0947 \u2014 \u092f\u093e\u092a\u0930\u094d\u092f\u0902\u0924 \u092a\u094b\u0939\u094b\u091a\u0942 \u0936\u0915\u0924\u0947.<\/li>\n<\/ul>\n<h3>\u092c\u094d\u0932\u0947\u0921 \u091c\u094b\u0921\u0923\u0940 \u0905\u092a\u092f\u0936<\/h3>\n<ul>\n<li>blade-to-hub junction \u0935\u0930\u0940\u0932 welds \u0915\u094d\u0930\u0945\u0915 \u0939\u094b\u0923\u0947.<\/li>\n<li>bolted attachments \u0938\u0948\u0932 \u0939\u094b\u0923\u0947.<\/li>\n<li>root fillet cracks.<\/li>\n<li>\u0938\u094d\u0925\u093f\u0924\u0940 \u0932\u0935\u0915\u0930 \u0928 \u092a\u0915\u0921\u0932\u094d\u092f\u093e\u0938 \u092a\u094d\u0930\u0917\u0924\u093f\u0936\u0940\u0932 \u092c\u093f\u0918\u093e\u0921.<\/li>\n<\/ul>\n<h2>4. \u0935\u093e\u092f\u0941\u0917\u0924\u093f\u0915 \u0905\u0938\u094d\u0925\u093f\u0930\u0924\u093e<\/h2>\n<h3>\u092b\u093f\u0930\u0924\u093e \u0938\u094d\u091f\u0949\u0932<\/h3>\n<ul>\n<li>\u0915\u093e\u0939\u0940 blades \u0935\u0930 \u0924\u092f\u093e\u0930 \u0939\u094b\u0923\u093e\u0930\u0940 flow separation \u091c\u0940 annulus \u092d\u094b\u0935\u0924\u0940 \u092b\u093f\u0930\u0924\u0947.<\/li>\n<li>\u0928\u093f\u0930\u094d\u092e\u093e\u0923 \u0915\u0930\u0924\u0947 <a href=\"https:\/\/vibromera.eu\/mr\/glossary\/sub-synchronous\/\">\u0909\u092a-\u0938\u092e\u0915\u093e\u0932\u093f\u0915<\/a> 0.2&ndash;0.5&times; rotor speed \u0935\u0930\u0940\u0932 vibration.<\/li>\n<li>\u0915\u092e\u0940 \u092a\u094d\u0930\u0935\u093e\u0939\u093e\u0924 \u0915\u093f\u0902\u0935\u093e \u0909\u091a\u094d\u091a inlet resistance \u0916\u093e\u0932\u0940 \u0939\u094b\u0924\u0947.<\/li>\n<li>\u0924\u0940 \u0924\u0940\u0935\u094d\u0930 \u0905\u0938\u0942 \u0936\u0915\u0924\u0947 \u0906\u0923\u093f blades \u0938\u093e\u0920\u0940 \u0939\u093e\u0928\u093f\u0915\u093e\u0930\u0915 \u0920\u0930\u0924\u0947.<\/li>\n<\/ul>\n<h3>\u092b\u094d\u0932\u091f\u0930<\/h3>\n<ul>\n<li>aeroelastic coupling \u092e\u0941\u0933\u0947 \u0928\u093f\u0930\u094d\u092e\u093e\u0923 \u0939\u094b\u0923\u093e\u0930\u0940 self-excited blade vibration \u2014 \u092f\u093e\u091a\u0947 \u090f\u0915 \u0930\u0942\u092a <a href=\"https:\/\/vibromera.eu\/mr\/glossary\/self-excited-vibration\/\">\u0938\u094d\u0935-\u0909\u0924\u094d\u0924\u0947\u091c\u093f\u0924 \u0915\u0902\u092a\u0928<\/a>.<\/li>\n<li>blade \u091a\u0940 \u0939\u093e\u0932\u091a\u093e\u0932 airflow \u092c\u0926\u0932\u0924\u0947, \u0906\u0923\u093f airflow \u092a\u0930\u0924 blade motion \u091a\u093e\u0932\u0935\u0924\u094b.<\/li>\n<li>blade \u091a\u094d\u092f\u093e \u0920\u093f\u0915\u093e\u0923\u0940 \u0939\u094b\u0924\u0947 <a href=\"https:\/\/vibromera.eu\/mr\/glossary\/natural-frequency\/\">\u0928\u0948\u0938\u0930\u094d\u0917\u093f\u0915 \u0935\u093e\u0930\u0902\u0935\u093e\u0930\u0924\u093e<\/a>.<\/li>\n<li>\u092f\u0947\u0925\u0947 \u0939\u094b\u0924\u0947. \u092f\u093e\u092e\u0941\u0933\u0947 blade failure \u091c\u0932\u0926 \u0939\u094b\u090a \u0936\u0915\u0924\u094b.<\/li>\n<li>\u0926\u0941\u0930\u094d\u092e\u093f\u0933, \u092a\u0923 \u0918\u0921\u0932\u094d\u092f\u093e\u0938 \u0935\u093f\u0928\u093e\u0936\u0915\u093e\u0930\u0940.<\/li>\n<\/ul>\n<h2>5. Vibration Signatures<\/h2>\n<h3>\u092c\u094d\u0932\u0947\u0921 \u092a\u093e\u0938\u093f\u0902\u0917 \u0935\u093e\u0930\u0902\u0935\u093e\u0930\u0924\u093e<\/h3>\n<ul>\n<li><strong>\u0917\u0923\u0928\u093e:<\/strong> BPF = blades \u091a\u0940 \u0938\u0902\u0916\u094d\u092f\u093e &times; RPM \/ 60. \u0939\u0947 \u0924\u0941\u092e\u094d\u0939\u0940 <a href=\"https:\/\/vibromera.eu\/mr\/calculators\/blade-pass-frequency\/\">\u092c\u094d\u0932\u0947\u0921 \u092a\u093e\u0938 \u092b\u094d\u0930\u093f\u0915\u094d\u0935\u0947\u0928\u094d\u0938\u0940 \u0915\u0945\u0932\u0915\u094d\u092f\u0941\u0932\u0947\u091f\u0930<\/a>.<\/li>\n<li><strong>\u0905\u0915\u094d\u0937\u0940\u092f \u092a\u0902\u0916\u0947:<\/strong> \u0924\u094b <a href=\"https:\/\/vibromera.eu\/mr\/glossary\/blade-passing-frequency\/\">\u092c\u094d\u0932\u0947\u0921 \u092a\u093e\u0938\u0938\u093f\u0902\u0917 \u0935\u093e\u0930\u0902\u0935\u093e\u0930\u0924\u093e<\/a> \u0928\u0947 \u0932\u0917\u0947\u091a \u0915\u093e\u0922\u0942 \u0936\u0915\u0924\u093e. \u0939\u0947 \u092c\u0939\u0941\u0927\u093e \u0920\u0933\u0915 \u0905\u0938\u0924\u0947 \u2014 centrifugal fans \u092a\u0947\u0915\u094d\u0937\u093e \u0905\u0927\u093f\u0915.<\/li>\n<li><strong>\u0935\u093e\u0922\u0932\u0947\u0932\u093e amplitude:<\/strong> tip-clearance \u0938\u092e\u0938\u094d\u092f\u093e, blade damage \u0915\u093f\u0902\u0935\u093e flow problems \u0915\u0921\u0947 \u0928\u093f\u0930\u094d\u0926\u0947\u0936 \u0915\u0930\u0924\u094b.<\/li>\n<li><strong>\u0939\u093e\u0930\u094d\u092e\u094b\u0928\u093f\u0915\u094d\u0938:<\/strong> \u0905\u0928\u0947\u0915 BPF <a href=\"https:\/\/vibromera.eu\/mr\/glossary\/harmonics\/\">harmonics<\/a> \u0939\u0947 blade \u0915\u093f\u0902\u0935\u093e flow problems \u0938\u0942\u091a\u093f\u0924 \u0915\u0930\u0924\u093e\u0924.<\/li>\n<\/ul>\n<h3>Unbalance<\/h3>\n<ul>\n<li>blade buildup, erosion \u0915\u093f\u0902\u0935\u093e pitch-angle non-uniformity \u092e\u0941\u0933\u0947 \u0928\u093f\u0930\u094d\u092e\u093e\u0923 \u0939\u094b\u0924\u0947.<\/li>\n<li>\u0939\u0947 1&times; running-speed component \u092e\u094d\u0939\u0923\u0942\u0928 \u0926\u093f\u0938\u0924\u0947.<\/li>\n<li>\u092f\u093e\u091a\u0947 \u0928\u093f\u0930\u093e\u0915\u0930\u0923 <a href=\"https:\/\/vibromera.eu\/mr\/glossary\/field-balancing\/\">\u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u0938\u0902\u0924\u0941\u0932\u0928<\/a> blade-mounted weights \u0935\u093e\u092a\u0930\u0942\u0928 \u0915\u0930\u0924\u093e \u092f\u0947\u0924\u0947.<\/li>\n<\/ul>\n<h3>\u0938\u094d\u091f\u0949\u0932-\u0938\u0902\u092c\u0902\u0927\u093f\u0924 \u0915\u0902\u092a\u0928<\/h3>\n<ul>\n<li>0.2&ndash;0.5&times; \u0936\u094d\u0930\u0947\u0923\u0940\u0924\u0940\u0932 sub-synchronous components.<\/li>\n<li>\u0905\u0928\u093f\u092f\u092e\u093f\u0924, \u091a\u0922\u0909\u0924\u093e\u0930 \u0915\u0930\u0923\u093e\u0930\u093e amplitude.<\/li>\n<li>broadband noise \u092e\u0927\u094d\u092f\u0947 \u0935\u093e\u0922.<\/li>\n<li>flow \u0935\u093e\u0922\u0935\u0932\u094d\u092f\u093e\u0935\u0930 \u0928\u093e\u0939\u0940\u0938\u093e \u0939\u094b\u0924\u094b \u2014 \u0939\u0940 \u090f\u0915 \u0909\u092a\u092f\u0941\u0915\u094d\u0924 \u092a\u0941\u0937\u094d\u091f\u0940 \u091a\u093e\u091a\u0923\u0940 \u0906\u0939\u0947.<\/li>\n<\/ul>\n<h2>6. Detection and Monitoring<\/h2>\n<h3>\u0915\u0902\u092a\u0928 \u0935\u093f\u0936\u094d\u0932\u0947\u0937\u0923<\/h3>\n<ul>\n<li>\u092e\u093e\u0928\u0915 bearing vibration monitoring.<\/li>\n<li>\u0915\u093e\u0932\u093e\u0902\u0924\u0930\u093e\u0928\u0947 BPF amplitude \u091a\u0947 trending.<\/li>\n<li>stall \u0938\u0942\u091a\u093f\u0924 \u0915\u0930\u0923\u093e\u0930\u0947 sub-synchronous components \u092a\u093e\u0939\u0923\u0947.<\/li>\n<li><a href=\"https:\/\/vibromera.eu\/mr\/glossary\/axial-vibration\/\">\u0905\u0915\u094d\u0937\u0940\u092f \u0915\u0902\u092a\u0928<\/a> thrust \u092c\u0926\u0932 \u092a\u0915\u0921\u0923\u094d\u092f\u093e\u0938\u093e\u0920\u0940 \u092e\u094b\u091c\u092e\u093e\u092a.<\/li>\n<\/ul>\n<h3>\u0915\u093e\u0930\u094d\u092f\u0915\u094d\u0937\u092e\u0924\u093e \u0928\u093f\u0930\u0940\u0915\u094d\u0937\u0923<\/h3>\n<ul>\n<li>pressure-differential \u092a\u0926\u094d\u0927\u0924\u0940\u0928\u0947 airflow \u092e\u094b\u091c\u092e\u093e\u092a.<\/li>\n<li>power-consumption trending.<\/li>\n<li>\u0915\u093e\u0930\u094d\u092f\u0915\u094d\u0937\u092e\u0924\u093e \u092e\u094b\u091c\u0923\u0940.<\/li>\n<li>design \u0915\u093f\u0902\u0935\u093e <a href=\"https:\/\/vibromera.eu\/mr\/glossary\/baseline\/\">baseline<\/a> performance \u0936\u0940 \u0924\u0941\u0932\u0928\u093e.<\/li>\n<\/ul>\n<h3>\u0924\u092a\u093e\u0938\u0923\u0940<\/h3>\n<ul>\n<li>cracks, erosion \u0906\u0923\u093f <a href=\"https:\/\/vibromera.eu\/mr\/glossary\/corrosion\/\">\u0917\u0902\u091c<\/a>.<\/li>\n<li>blade pitch-angle \u092a\u0921\u0924\u093e\u0933\u0923\u0940.<\/li>\n<li>tip-clearance \u092e\u094b\u091c\u092e\u093e\u092a.<\/li>\n<li>hub \u0906\u0923\u093f attachment-point \u0924\u092a\u093e\u0938\u0923\u0940.<\/li>\n<li>critical fans \u092e\u0927\u094d\u092f\u0947 crack detection \u0938\u093e\u0920\u0940 NDT.<\/li>\n<\/ul>\n<h2>7. Field Balancing and Vibration Limits<\/h2>\n<p>\u0915\u093e\u0930\u0923 axial fan \u0938\u094d\u0935\u0924\u0903\u091a\u094d\u092f\u093e bearings \u0935\u0930 \u091a\u093e\u0932\u0924\u094b, \u0924\u094d\u092f\u093e\u092e\u0941\u0933\u0947 \u092a\u094d\u0930\u092e\u0941\u0916 1&times; unbalance \u0939\u093e\u0924\u093e\u0933\u0923\u094d\u092f\u093e\u091a\u0940 \u0935\u094d\u092f\u093e\u0935\u0939\u093e\u0930\u093f\u0915 \u092a\u0926\u094d\u0927\u0924 \u092e\u094d\u0939\u0923\u091c\u0947 rotor \u0915\u093e\u0922\u0942\u0928 \u0928 \u091f\u093e\u0915\u0924\u093e \u091c\u093e\u0917\u0947\u0935\u0930\u091a \u0924\u094d\u092f\u093e\u091a\u0947 balance \u0915\u0930\u0923\u0947. \u0905\u0936\u093e \u092a\u094d\u0930\u0915\u093e\u0930\u091a\u0947 portable two-channel analyser \u091c\u0938\u0947 \u0915\u0940 <a href=\"https:\/\/vibromera.eu\/mr\/product\/balanset-1\/\">Balanset-1A<\/a> 1&times; \u092e\u093e\u092a\u0924\u0947 <a href=\"https:\/\/vibromera.eu\/mr\/glossary\/phase\/\">\u092e\u094b\u0920\u0947\u092a\u0923\u093e \u0906\u0923\u093f \u091f\u092a\u094d\u092a\u093e<\/a> \u0915\u093e\u0930\u094d\u092f\u0930\u0924 \u0935\u0947\u0917\u093e\u0935\u0930, \u092f\u093e\u091a\u0940 \u0917\u0923\u0928\u093e \u0915\u0930\u0924\u0947 <a href=\"https:\/\/vibromera.eu\/mr\/glossary\/influence-coefficient\/\">\u0907\u0928\u094d\u092b\u094d\u0932\u0941\u0905\u0928\u094d\u0938 \u0915\u094b\u0907\u092b\u093f\u0936\u0902\u091f\u094d\u0938<\/a> fan \u091a\u0947 <a href=\"https:\/\/vibromera.eu\/mr\/glossary\/correction-weight\/\">\u0926\u0941\u0930\u0941\u0938\u094d\u0924\u0940 \u0935\u091c\u0928<\/a> \u092e\u094b\u091c\u0924\u0947 \u0906\u0923\u093f blades \u0935\u0930 \u091c\u094b\u0921\u093e\u092f\u091a\u094d\u092f\u093e <a href=\"https:\/\/vibromera.eu\/mr\/glossary\/residual-unbalance\/\">\u0905\u0935\u0936\u093f\u0937\u094d\u091f \u0905\u0938\u0902\u0924\u0941\u0932\u0928<\/a> mass \u091a\u0947 \u0935\u091c\u0928 \u0935 \u0915\u094b\u0928 \u0938\u093e\u0902\u0917\u0924\u0947. \u0924\u094d\u092f\u093e\u0928\u0902\u0924\u0930 \u0924\u0947 \u0928\u093f\u0915\u093e\u0932 <a href=\"https:\/\/vibromera.eu\/mr\/glossary\/iso-14694\/\">ISO 14694<\/a>tolerance \u0935\u093f\u0930\u0941\u0926\u094d\u0927 \u092a\u0921\u0924\u093e\u0933\u0924\u0947. acceptance \u0906\u0923\u093f balance-quality grades \u0938\u093e\u0920\u0940 \u092e\u094b\u0920\u094d\u092f\u093e industrial fans \u092c\u093e\u092c\u0924 \u0935\u093f\u0936\u0947\u0937 \u0909\u0932\u094d\u0932\u0947\u0916 <a href=\"https:\/\/vibromera.eu\/mr\/glossary\/iso-20816-3\/\">ISO 20816-3<\/a> \u092e\u0927\u094d\u092f\u0947 \u0906\u0939\u0947, \u0924\u0930 bearing housings \u0935\u0930\u0940\u0932 \u090f\u0915\u0942\u0923 vibration severity \u0906\u0927\u0941\u0928\u093f\u0915<\/p>\n<h2>(ISO 10816-3 \u0932\u093e \u092a\u094d\u0930\u0924\u093f\u0938\u094d\u0925\u093e\u092a\u093f\u0924 \u0915\u0930\u0923\u093e\u0930\u0947 \u092e\u093e\u0928\u0915) \u092f\u093e\u0902\u091a\u094d\u092f\u093e \u0935\u093f\u0930\u094b\u0927\u093e\u0924 \u0924\u092a\u093e\u0938\u0932\u0947 \u091c\u093e\u0924\u0947.<\/h2>\n<h3>\u092c\u094d\u0932\u0947\u0921 \u0926\u0947\u0916\u092d\u093e\u0932<\/h3>\n<ul>\n<li>blades \u0935\u0930\u091a\u0940 buildup \u0938\u093e\u092b \u0915\u0930\u093e, \u0928\u0902\u0924\u0930 \u092a\u0941\u0928\u094d\u0939\u093e balance \u0915\u0930\u093e.<\/li>\n<li>\u0939\u0932\u0915\u0940 erosion \u0906\u0923\u093f corrosion damage \u0926\u0941\u0930\u0941\u0938\u094d\u0924 \u0915\u0930\u093e.<\/li>\n<li>cracked \u0915\u093f\u0902\u0935\u093e \u0917\u0902\u092d\u0940\u0930\u0930\u0940\u0924\u094d\u092f\u093e \u0928\u0941\u0915\u0938\u093e\u0928 \u091d\u093e\u0932\u0947\u0932\u094d\u092f\u093e blades \u092c\u0926\u0932\u093e.<\/li>\n<li>\u0938\u0930\u094d\u0935 blades \u090f\u0915\u093e\u091a pitch angle \u0935\u0930 \u0906\u0939\u0947\u0924 \u092f\u093e\u091a\u0940 \u0916\u093e\u0924\u094d\u0930\u0940 \u0915\u0930\u093e.<\/li>\n<li>blade-attachment bolts \u0924\u092a\u093e\u0938\u093e \u0906\u0923\u093f \u0918\u091f\u094d\u091f \u0915\u0930\u093e.<\/li>\n<\/ul>\n<h3>\u0915\u094d\u0932\u0940\u092f\u0930\u0928\u094d\u0938 \u092a\u0941\u0928\u0930\u094d\u0938\u094d\u0925\u093e\u092a\u0928\u093e<\/h3>\n<ul>\n<li>clearance \u091c\u093e\u0938\u094d\u0924 \u0905\u0938\u0932\u094d\u092f\u093e\u0938 shroud rings \u0915\u093f\u0902\u0935\u093e tip seals \u091c\u094b\u0921\u093e.<\/li>\n<li>\u0924\u094d\u092f\u093e\u091a\u093e \u0935\u094d\u092f\u093e\u0938 \u0915\u092e\u0940 \u0915\u0930\u0923\u094d\u092f\u093e\u0938\u093e\u0920\u0940 housing \u092a\u0941\u0928\u094d\u0939\u093e \u092c\u093e\u0902\u0927\u093e.<\/li>\n<li>\u0906\u0930\u094d\u0925\u093f\u0915\u0926\u0943\u0937\u094d\u091f\u094d\u092f\u093e \u092f\u094b\u0917\u094d\u092f \u0905\u0938\u0932\u094d\u092f\u093e\u0938 fan \u092c\u0926\u0932\u093e.<\/li>\n<\/ul>\n<h3>\u0911\u092a\u0930\u0947\u091f\u093f\u0902\u0917 \u092a\u0949\u0907\u0902\u091f \u0928\u093f\u092f\u0902\u0924\u094d\u0930\u0923<\/h3>\n<ul>\n<li>fan \u0924\u094d\u092f\u093e\u091a\u094d\u092f\u093e design point \u091c\u0935\u0933 \u091a\u093e\u0932\u0947\u0932 \u0905\u0938\u093e system resistance \u0938\u092e\u093e\u092f\u094b\u091c\u093f\u0924 \u0915\u0930\u093e.<\/li>\n<li>\u0909\u0924\u094d\u0924\u092e \u091c\u0941\u0933\u0923\u0940\u0938\u093e\u0920\u0940 variable-speed control \u0935\u093e\u092a\u0930\u093e.<\/li>\n<li>stall region \u092e\u0927\u094d\u092f\u0947 operation \u091f\u093e\u0933\u093e.<\/li>\n<li>turndown \u0938\u093e\u0920\u0940 inlet-vane \u0915\u093f\u0902\u0935\u093e damper control \u0935\u093e\u092a\u0930\u093e.<\/li>\n<\/ul>\n<p>Axial fan defects \u092e\u0927\u094d\u092f\u0947 rotating machinery \u091a\u094d\u092f\u093e \u0928\u0947\u0939\u092e\u0940\u091a\u094d\u092f\u093e \u0938\u092e\u0938\u094d\u092f\u093e \u0906\u0923\u093f axial-flow machines \u0938\u093e\u0920\u0940 \u0905\u0926\u094d\u0935\u093f\u0924\u0940\u092f aerodynamic phenomena \u092f\u093e\u0902\u091a\u0947 \u092e\u093f\u0936\u094d\u0930\u0923 \u0905\u0938\u0924\u0947. Blade structural issues, tip clearance \u091a\u0947 \u092e\u0939\u0924\u094d\u0924\u094d\u0935 \u0906\u0923\u093f rotating stall \u0938\u093e\u0930\u0916\u094d\u092f\u093e instabilities \u092f\u093e\u0902\u091a\u0947 \u0938\u092e\u091c, \u0924\u0938\u0947\u091a \u092f\u094b\u0917\u094d\u092f vibration monitoring \u0906\u0923\u093f performance testing \u092f\u093e\u0902\u091a\u0940 \u091c\u094b\u0921, \u092f\u093e \u092e\u0939\u0924\u094d\u0924\u094d\u0935\u093e\u091a\u094d\u092f\u093e air-moving machines \u0932\u093e industrial service \u092e\u0927\u094d\u092f\u0947 \u0935\u093f\u0936\u094d\u0935\u093e\u0938\u093e\u0930\u094d\u0939 \u091a\u093e\u0932\u0942 \u0920\u0947\u0935\u0924\u0947.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/mr\/glossary\/\">\u2190 \u092e\u0941\u0916\u094d\u092f \u0928\u093f\u0930\u094d\u0926\u0947\u0936\u0915\u093e\u0902\u0915\u0921\u0947 \u092a\u0930\u0924<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Learn about axial fan defects including blade damage, tip clearance issues, stall, and aerodynamic instabilities specific to axial flow fan designs.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[109,110],"tags":[],"class_list":["post-20628","glossary","type-glossary","status-publish","hentry","category-glossary","category-vibration-diagnostics"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/mr\/wp-json\/wp\/v2\/glossary\/20628","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/mr\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/mr\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/mr\/wp-json\/wp\/v2\/glossary\/20628\/revisions"}],"predecessor-version":[{"id":101351,"href":"https:\/\/vibromera.eu\/mr\/wp-json\/wp\/v2\/glossary\/20628\/revisions\/101351"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/mr\/wp-json\/wp\/v2\/media?parent=20628"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/mr\/wp-json\/wp\/v2\/categories?post=20628"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/mr\/wp-json\/wp\/v2\/tags?post=20628"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}