{"id":20617,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/aerodynamic-forces\/"},"modified":"2026-05-23T22:38:11","modified_gmt":"2026-05-23T22:38:11","slug":"aerodynamic-forces","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/ro\/glossary\/aerodynamic-forces\/","title":{"rendered":"Ce sunt for\u021bele aerodinamice? Sarcinile ventilatorului \u0219i turbinei"},"content":{"rendered":"<h1>\u00cen\u021belegerea for\u021belor aerodinamice<\/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\/ro\/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\/ro\/product\/balanset-1\/\" title=\"Echilibrator portabil \u0219i analizor de vibra\u021bii 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 kit complet \u2014 echilibrator portabil \u0219i analizor de vibra\u021bii\" 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\/ro\/product-category\/devices\/\" rel=\"tag\">Dispozitive<\/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\/ro\/product\/balanset-1\/\" title=\"Echilibrator portabil \u0219i analizor de vibra\u021bii Balanset-1A\">Echilibrator portabil \u0219i analizor de vibra\u021bii 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\">\u20ac<\/span>1,975.00<\/span> + TVA (dac\u0103 este cazul)<\/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=\"\/ro\/wp-json\/wp\/v2\/glossary\/20617?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=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" 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=\"\/ro\/wp-json\/wp\/v2\/glossary\/20617?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=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Portable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"\u201ePortable balancer &amp; Vibration analyzer Balanset-1A\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/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\/ro\/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\/ro\/product\/vibration-sensor\/\" title=\"Senzor de vibra\u021bii\">\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=\"Prim-plan senzor de vibra\u021bii Balanset-1A\" 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\/ro\/product-category\/parts\/\" rel=\"tag\">Piese<\/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\/ro\/product\/vibration-sensor\/\" title=\"Senzor de vibra\u021bii\">Senzor de vibra\u021bii<\/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\">\u20ac<\/span>90.00<\/span> + TVA (dac\u0103 este cazul)<\/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=\"\/ro\/wp-json\/wp\/v2\/glossary\/20617?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=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" 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=\"\/ro\/wp-json\/wp\/v2\/glossary\/20617?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=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Vibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"\u201eVibration sensor\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/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\/ro\/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\/ro\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Senzor optic (tahometru cu laser)\">\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=\"Senzor optic (tahometru cu laser)\" 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\/ro\/product-category\/parts\/\" rel=\"tag\">Piese<\/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\/ro\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Senzor optic (tahometru cu laser)\">Senzor optic (tahometru cu laser)<\/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\">\u20ac<\/span>124.00<\/span> + TVA (dac\u0103 este cazul)<\/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=\"\/ro\/wp-json\/wp\/v2\/glossary\/20617?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=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" 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=\"\/ro\/wp-json\/wp\/v2\/glossary\/20617?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=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Optical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"\u201eOptical Sensor (Laser Tachometer)\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/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\/ro\/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\/ro\/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=\"Kit de echilibrare a rotorului Vibromera: geant\u0103 de transport, condi\u021bioner de semnal multicanal, analizor portabil, baz\u0103 magnetic\u0103, senzori de vibra\u021bii \u0219i cabluri spiralate.\" 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\/ro\/product-category\/devices\/\" rel=\"tag\">Dispozitive<\/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\/ro\/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\">\u20ac<\/span>6,803.00<\/span> + TVA (dac\u0103 este cazul)<\/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=\"\/ro\/wp-json\/wp\/v2\/glossary\/20617?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=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" 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=\"\/ro\/wp-json\/wp\/v2\/glossary\/20617?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=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Balanset-4\u201d\" rel=\"nofollow\" data-success_message=\"\u201eBalanset-4\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/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\/ro\/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\/ro\/product\/magnet-stand\/\" title=\"Stand magnetic 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=\"Baza magnetic\u0103.\" 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\/ro\/product-category\/parts\/\" rel=\"tag\">Piese<\/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\/ro\/product\/magnet-stand\/\" title=\"Stand magnetic Insize-60-kgf\">Stand magnetic 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\">\u20ac<\/span>46.00<\/span> + TVA (dac\u0103 este cazul)<\/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=\"\/ro\/wp-json\/wp\/v2\/glossary\/20617?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=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" 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=\"\/ro\/wp-json\/wp\/v2\/glossary\/20617?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=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Magnetic Stand Insize-60-kgf\u201d\" rel=\"nofollow\" data-success_message=\"\u201eMagnetic Stand Insize-60-kgf\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/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\/ro\/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\/ro\/product\/reflective-tape\/\" title=\"Band\u0103 reflectorizant\u0103\">\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=\"Band\u0103 reflectorizant\u0103\" 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\/ro\/product-category\/parts\/\" rel=\"tag\">Piese<\/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\/ro\/product\/reflective-tape\/\" title=\"Band\u0103 reflectorizant\u0103\">Band\u0103 reflectorizant\u0103<\/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\">\u20ac<\/span>10.00<\/span> + TVA (dac\u0103 este cazul)<\/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=\"\/ro\/wp-json\/wp\/v2\/glossary\/20617?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=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" 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=\"\/ro\/wp-json\/wp\/v2\/glossary\/20617?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=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Reflective tape\u201d\" rel=\"nofollow\" data-success_message=\"\u201eReflective tape\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/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\/ro\/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\/ro\/product\/dynamic-balancer-balanset-1a\/\" title=\"Echilibrator dinamic &quot;Balanset-1A&quot; 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=\"Con\u021binutul kitului Balanset-1A cu unitate de interfa\u021b\u0103, senzori, tahometru \u0219i accesorii\" 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\/ro\/product-category\/devices\/\" rel=\"tag\">Dispozitive<\/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\/ro\/product\/dynamic-balancer-balanset-1a\/\" title=\"Echilibrator dinamic &quot;Balanset-1A&quot; OEM\">Echilibrator dinamic \"Balanset-1A\" 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\">\u20ac<\/span>1,735.00<\/span> + TVA (dac\u0103 este cazul)<\/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=\"\/ro\/wp-json\/wp\/v2\/glossary\/20617?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=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" 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=\"\/ro\/wp-json\/wp\/v2\/glossary\/20617?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=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Dynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"\u201eDynamic balancer \u201cBalanset-1A\u201d OEM\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/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>For\u021be aerodinamice<\/strong> sunt for\u021bele pe care aerul sau gazul \u00een mi\u0219care le exercit\u0103 asupra componentelor rotative \u0219i sta\u021bionare ale ventilatoarelor, suflantelor, compresoarelor \u0219i turbinelor. Ele rezult\u0103 din diferen\u021bele de presiune de pe suprafe\u021bele paletelor, din schimb\u0103rile de moment \u00een gazul care curge \u0219i din interac\u021biunea continu\u0103 dintre fluid \u0219i structura peste care curge. Aceste for\u021be cuprind at\u00e2t componente stabile - \u00eempingere \u0219i sarcini radiale - c\u00e2t \u0219i componente nesta\u021bionare, cum ar fi pulsa\u021biile la <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/blade-passing-frequency\/\">frecven\u021ba de trecere a paletei<\/a> \u0219i turbulen\u021bele aleatorii. \u00cempreun\u0103, acestea produc <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/vibration\/\">vibra\u021bii<\/a>, \u00eencarc\u0103 rulmen\u021bii \u0219i carcasele \u0219i, \u00een unele cazuri, provoac\u0103 instabilit\u0103\u021bi autoexcitate care pot distruge o ma\u0219in\u0103.<\/p>\n<p>For\u021bele aerodinamice sunt contrapartea \u00een faz\u0103 gazoas\u0103 a <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/hydraulic-forces\/\">for\u021be hidraulice<\/a> g\u0103site \u00een pompe, dar cu trei diferen\u021be importante: gazul este compresibil, densitatea sa variaz\u0103 puternic \u00een func\u021bie de presiune \u0219i temperatur\u0103 \u0219i se cupleaz\u0103 acustic cu ma\u0219ina \u0219i conductele sale. Acest cuplaj acustic poate crea rezonan\u021be \u0219i instabilit\u0103\u021bi care pur \u0219i simplu nu exist\u0103 \u00eentr-un sistem lichid incompresibil, motiv pentru care problemele ventilatoarelor \u0219i compresoarelor arat\u0103 adesea destul de diferit de problemele pompelor.<\/p>\n<h2>1. Tipuri de for\u021be aerodinamice<\/h2>\n<h3>1. For\u021be de \u00eempingere<\/h3>\n<p>Acestea sunt for\u021be axiale produse de presiunea care ac\u021bioneaz\u0103 asupra suprafe\u021belor paletelor:<\/p>\n<ul>\n<li><strong>Ventilatoare centrifugale:<\/strong> diferen\u021ba de presiune creeaz\u0103 o for\u021b\u0103 de \u00eempingere \u00eendreptat\u0103 spre admisie.<\/li>\n<li><strong>Ventilatoare axiale:<\/strong> reac\u021bia la accelerarea aerului produce o for\u021b\u0103 axial\u0103.<\/li>\n<li><strong>Turbine:<\/strong> expansiunea gazului prin paletaj creeaz\u0103 o \u00eempingere mare.<\/li>\n<li><strong>Magnitudine:<\/strong> aproximativ propor\u021bional cu cre\u0219terea presiunii \u0219i cu debitul.<\/li>\n<li><strong>Efect:<\/strong> se \u00eencarc\u0103 <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/thrust-bearing\/\">rulment axial<\/a> \u0219i produce <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/axial-vibration\/\">vibra\u021bii axiale<\/a>.<\/li>\n<\/ul>\n<h3>2. For\u021be radiale<\/h3>\n<p>Acestea sunt for\u021be laterale create de o distribu\u021bie neuniform\u0103 a presiunii \u00een jurul rotorului. Acestea iau dou\u0103 forme distincte.<\/p>\n<p><strong>For\u021b\u0103 radial\u0103 constant\u0103:<\/strong><\/p>\n<ul>\n<li>Cauzat de o presiune asimetric\u0103 \u00een carcas\u0103 sau \u00een conducte.<\/li>\n<li>Variaz\u0103 \u00een func\u021bie de punctul de func\u021bionare, adic\u0103 de debit.<\/li>\n<li>Atinge un minim la punctul de proiectare.<\/li>\n<li>Creeaz\u0103 o \u00eenc\u0103rcare a rulmentului \u0219i o component\u0103 de vibra\u021bii 1\u00d7.<\/li>\n<\/ul>\n<p><strong>For\u021ba radial\u0103 de rota\u021bie:<\/strong><\/p>\n<ul>\n<li>Apare atunci c\u00e2nd rotorul cu palete sau rotorul suport\u0103 o sarcin\u0103 aerodinamic\u0103 asimetric\u0103.<\/li>\n<li>For\u021ba se rote\u0219te odat\u0103 cu rotorul.<\/li>\n<li>Se creeaz\u0103 o vibra\u021bie 1\u00d7 care arat\u0103 exact ca <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/unbalance\/\">dezechilibru<\/a>.<\/li>\n<li>Se poate ad\u0103uga vectorial la un dezechilibru mecanic real, motiv pentru care un ventilator poate p\u0103rea &#8220;dezechilibrat&#8221; doar pentru c\u0103 punctul s\u0103u de func\u021bionare s-a schimbat.<\/li>\n<\/ul>\n<h3>3. Pulsa\u021bii la trecerea paletelor<\/h3>\n<p>Acestea sunt impulsuri periodice de presiune la rata cu care paletele trec printr-un punct fix:<\/p>\n<ul>\n<li><strong>Frecven\u0163\u0103:<\/strong> num\u0103rul de palete \u00d7 RPM \/ 60 - o valoare pe care dispozitivul nostru <a href=\"https:\/\/vibromera.eu\/ro\/calculators\/blade-pass-frequency\/\">Calculator de frecven\u021b\u0103 de trecere a lamei<\/a> o returneaz\u0103 direct.<\/li>\n<li><strong>Cauza:<\/strong> fiecare palet\u0103 perturb\u0103 c\u00e2mpul de curgere \u0219i emite un impuls de presiune.<\/li>\n<li><strong>Interac\u0163iune:<\/strong> are loc \u00eentre paletele rotative \u0219i suporturile sta\u021bionare, paletele directoare sau limba carcasei.<\/li>\n<li><strong>Amplitudine:<\/strong> depinde de distan\u021ba dintre palet\u0103 \u0219i stator \u0219i de condi\u021biile de curgere.<\/li>\n<li><strong>Efect:<\/strong> este sursa principal\u0103 a zgomotului tonal \u0219i a vibra\u021biilor \u00een ventilatoare \u0219i compresoare.<\/li>\n<\/ul>\n<h3>4. For\u021be induse de turbulen\u021be<\/h3>\n<ul>\n<li><strong>For\u021be aleatorii:<\/strong> generate de v\u00e2rtejurile turbulente \u0219i de separarea fluxului.<\/li>\n<li><strong>Spectrul de band\u0103 larg\u0103:<\/strong> energia este r\u0103sp\u00e2ndit\u0103 pe o gam\u0103 larg\u0103 de frecven\u021be, mai degrab\u0103 dec\u00e2t concentrat\u0103 \u00een tonuri.<\/li>\n<li><strong>Depinde de debit:<\/strong> ele cresc cu <a href=\"https:\/\/vibromera.eu\/ro\/calculators\/reynolds-number-calculator\/\">Num\u0103rul Reynolds<\/a> \u0219i cu func\u021bionare \u00een afara proiect\u0103rii.<\/li>\n<li><strong>Problema oboselii:<\/strong> aceast\u0103 \u00eenc\u0103rcare aleatorie contribuie la oboseala componentelor \u00een timp.<\/li>\n<\/ul>\n<h3>5. For\u021be de curgere instabil\u0103<\/h3>\n<p><strong>Desprindere rotativ\u0103:<\/strong><\/p>\n<ul>\n<li>O regiune de separare localizat\u0103 a fluxului care se rote\u0219te \u00een jurul inelului.<\/li>\n<li>Apare la o <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/sub-synchronous\/\">subsincron<\/a> frecven\u021b\u0103, aproximativ 0,2-0,8\u00d7 viteza rotorului.<\/li>\n<li>Creeaz\u0103 for\u021be instabile severe.<\/li>\n<li>Frecvente la debit redus \u00een compresoare.<\/li>\n<\/ul>\n<p><strong><a href=\"https:\/\/vibromera.eu\/ro\/glossary\/surging\/\">Pompaj<\/a>:<\/strong><\/p>\n<ul>\n<li>O oscila\u021bie a fluxului la nivelul \u00eentregului sistem, cu inversarea fluxului \u00eenainte \u0219i \u00eenapoi.<\/li>\n<li>O frecven\u021b\u0103 foarte joas\u0103, aproximativ 0,5-10 Hz.<\/li>\n<li>Amplitudini de for\u021b\u0103 extrem de mari.<\/li>\n<li>Acesta poate distruge un compresor dac\u0103 este l\u0103sat s\u0103 persiste.<\/li>\n<\/ul>\n<h2>2. Vibra\u021bii de la surse aerodinamice<\/h2>\n<h3>Frecven\u021ba de trecere a palei (BPF)<\/h3>\n<ul>\n<li>Componenta dominant\u0103 a vibra\u021biilor aerodinamice.<\/li>\n<li>Amplitudinea sa variaz\u0103 \u00een func\u021bie de punctul de func\u021bionare.<\/li>\n<li>Acesta este mai ridicat \u00een condi\u021bii neconforme cu proiectul.<\/li>\n<li>Acesta poate excita o structur\u0103 sau <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/blade-resonance\/\">rezonan\u021ba palei<\/a>.<\/li>\n<\/ul>\n<h3>Pulsa\u021bii de joas\u0103 frecven\u021b\u0103<\/h3>\n<ul>\n<li>Provenind din <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/recirculation\/\">recirculare<\/a>, blocare sau pompaj.<\/li>\n<li>Adesea severe \u00een amplitudine - pot dep\u0103\u0219i vibra\u021bia 1\u00d7.<\/li>\n<li>Acestea indic\u0103 o func\u021bionare departe de punctul de proiectare.<\/li>\n<li>Acestea necesit\u0103 o modificare a condi\u021biilor de func\u021bionare, nu o repara\u021bie mecanic\u0103.<\/li>\n<\/ul>\n<h3>Vibra\u021bii \u00een band\u0103 larg\u0103<\/h3>\n<ul>\n<li>Produs de <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/turbulence\/\">turbulen\u021b\u0103<\/a> \u0219i zgomotul de curgere.<\/li>\n<li>Ridicat \u00een regiunile cu vitez\u0103 mare.<\/li>\n<li>Cre\u0219te odat\u0103 cu debitul \u0219i intensitatea turbulen\u021bei.<\/li>\n<li>Mai pu\u021bin \u00eengrijor\u0103toare dec\u00e2t componentele tonale, dar un indicator util al calit\u0103\u021bii fluxului.<\/li>\n<\/ul>\n<h2>3. Cuplarea cu efectele mecanice<\/h2>\n<h3>Interac\u021biunea aerodinamic\u0103-mecanic\u0103<\/h3>\n<ul>\n<li>For\u021bele aerodinamice deviaz\u0103 rotorul.<\/li>\n<li>Aceast\u0103 devia\u021bie modific\u0103 spa\u021biile libere de rulare, care la r\u00e2ndul lor modific\u0103 for\u021bele aerodinamice.<\/li>\n<li>Acest feedback poate crea o instabilitate cuplat\u0103.<\/li>\n<li>Un exemplu clasic este reprezentat de for\u021bele aerodinamice din garniturile de etan\u0219are care contribuie la <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/rotor-instability\/\">instabilitatea rotorului<\/a> - str\u00e2ns legate de <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/steam-whirl\/\">v\u00e2rtej de abur<\/a> observate \u00een turbine.<\/li>\n<\/ul>\n<h3>Amortizarea aerodinamic\u0103<\/h3>\n<ul>\n<li>Rezisten\u021ba aerului asigur\u0103 \u00een general amortizarea vibra\u021biilor structurale.<\/li>\n<li>Acest efect este de obicei pozitiv, adic\u0103 stabilizator.<\/li>\n<li>Dar, \u00een anumite condi\u021bii de flux, acesta poate deveni negativ \u0219i destabilizator.<\/li>\n<li>Acesta este un aspect important \u00een <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/rotor-dynamics\/\">dinamica rotorului<\/a> de turboma\u0219ini.<\/li>\n<\/ul>\n<h2>4. Considera\u021bii privind proiectarea<\/h2>\n<h3>Minimizarea for\u021belor<\/h3>\n<ul>\n<li>Optimiza\u021bi unghiurile \u0219i distan\u021ba dintre lame.<\/li>\n<li>Folosi\u021bi difuzoare sau spa\u021bii f\u0103r\u0103 palete pentru a reduce pulsa\u021biile<\/li>\n<li>Proiecta\u021bi pentru o gam\u0103 larg\u0103 \u0219i stabil\u0103 de func\u021bionare.<\/li>\n<li>Alege\u021bi un num\u0103r de lame care s\u0103 evite rezonan\u021bele acustice.<\/li>\n<\/ul>\n<h3>Proiectare structural\u0103<\/h3>\n<ul>\n<li>Dimensiona\u021bi rulmen\u021bii pentru sarcinile aerodinamice pe l\u00e2ng\u0103 sarcinile mecanice.<\/li>\n<li>Asigura\u021bi-v\u0103 c\u0103 arborele este suficient de rigid pentru a limita deformarea sub for\u021ba aerodinamic\u0103.<\/li>\n<li>Separa\u021bi lama <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/natural-frequency\/\">frecven\u021be naturale<\/a> de sursele de excita\u021bie.<\/li>\n<li>Proiecta\u021bi carcasa \u0219i structura pentru sarcinile generate de pulsa\u021biile de presiune.<\/li>\n<\/ul>\n<h2>5. Strategii opera\u021bionale \u0219i m\u0103sur\u0103tori pe teren<\/h2>\n<h3>Punct optim de func\u021bionare<\/h3>\n<ul>\n<li>Func\u021biona\u021bi aproape de punctul de proiectare pentru cele mai mici for\u021be aerodinamice.<\/li>\n<li>Evita\u021bi debitul foarte sc\u0103zut, care favorizeaz\u0103 recircularea \u0219i blocajul aerodinamic.<\/li>\n<li>Evita\u021bi debitul foarte mare, care cre\u0219te viteza \u0219i turbulen\u021bele.<\/li>\n<li>Utiliza\u021bi viteza variabil\u0103 pentru a men\u021bine punctul optim pe m\u0103sur\u0103 ce cererea se modific\u0103 \u2014 <a href=\"https:\/\/vibromera.eu\/ro\/calculators\/affinity-laws-calculator\/\">legi de afinitate<\/a> descriu modul \u00een care debitul, \u00een\u0103l\u021bimea \u0219i puterea variaz\u0103 cu viteza.<\/li>\n<\/ul>\n<h3>Evitarea instabilit\u0103\u021bilor<\/h3>\n<ul>\n<li>R\u0103m\u00e2ne\u021bi la dreapta liniei de pompaj \u00een cazul compresoarelor.<\/li>\n<li>Implementa\u021bi controlul anti-pompaj.<\/li>\n<li>Supraveghea\u021bi debutul blocajului.<\/li>\n<li>Asigura\u021bi protec\u021bie la debit minim at\u00e2t pentru ventilatoare, c\u00e2t \u0219i pentru compresoare.<\/li>\n<\/ul>\n<p>Pe teren, provocarea practic\u0103 const\u0103 \u00een a deosebi o problem\u0103 aerodinamic\u0103 de una mecanic\u0103, deoarece ambele pot ridica v\u00e2rfurile 1\u00d7 sau BPF. Un analizor portabil cu dou\u0103 canale, cum ar fi <a href=\"https:\/\/vibromera.eu\/ro\/produs\/balanset-1\/\">Balanset-1A<\/a> ajut\u0103 la trasarea acestei linii: prin captarea spectrului \u0219i a 1\u00d7 <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/phase\/\">amplitudine \u0219i faz\u0103<\/a> la mai multe puncte de func\u021bionare, un inginer poate vedea dac\u0103 un v\u00e2rf urm\u0103re\u0219te viteza de rulare \u0219i r\u0103m\u00e2ne fix \u00een func\u021bie de sarcin\u0103 - ceea ce indic\u0103 un dezechilibru mecanic - sau dac\u0103 se umfl\u0103 \u0219i se deplaseaz\u0103 \u00een func\u021bie de schimbarea debitului, ceea ce indic\u0103 o surs\u0103 aerodinamic\u0103. \u00cen cazul \u00een care componenta 1\u00d7 se dovede\u0219te a fi un dezechilibru mecanic real, acela\u0219i instrument <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/echilibrarea-campului\/\">echilibreaz\u0103 ventilatorul sau rotorul \u00een pozi\u021bie<\/a>, astfel \u00eenc\u00e2t contribu\u021bia aerodinamic\u0103 s\u0103 poat\u0103 fi abordat\u0103 \u00een termeni proprii.<\/p>\n<p>For\u021bele aerodinamice sunt, \u00een cele din urm\u0103, fundamentale pentru func\u021bionarea \u0219i fiabilitatea oric\u0103rei ma\u0219ini de mi\u0219care a aerului \u0219i de manipulare a gazelor. \u00cen\u021belegerea modului \u00een care aceste for\u021be se modific\u0103 \u00een func\u021bie de condi\u021biile de func\u021bionare, recunoa\u0219terea semn\u0103turilor lor distincte de vibra\u021bii, precum \u0219i proiectarea \u0219i exploatarea echipamentelor pentru a men\u021bine componentele nesta\u021bionare la un nivel sc\u0103zut - \u00een principal prin func\u021bionarea \u00een apropierea punctului de proiectare - este ceea ce asigur\u0103 o func\u021bionare fiabil\u0103 \u0219i eficient\u0103 a ventilatoarelor, suflantelor, compresoarelor \u0219i turbinelor \u00een \u00eentreaga industrie. Recunoa\u0219terea rela\u021biilor <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/fan-defects\/\">defecte ale ventilatorului<\/a> \u0219i <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/impeller-defects\/\">defecte ale paletelor rotorului<\/a> pe care \u00eenc\u0103rcarea aerodinamic\u0103 le poate accelera completeaz\u0103 imaginea de diagnostic.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/ro\/glossary\/\">\u2190 \u00cenapoi la indexul principal<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Afla\u021bi despre for\u021bele aerodinamice din ventilatoare \u0219i turbine, sarcinile induse de presiunea aerului care creeaz\u0103 vibra\u021bii la frecven\u021ba de trecere a palelor, for\u021bele de \u00eempingere \u0219i instabilit\u0103\u021bile induse de curgere.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[109,110],"tags":[],"class_list":["post-20617","glossary","type-glossary","status-publish","hentry","category-glossary","category-vibration-diagnostics"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/glossary\/20617","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/glossary\/20617\/revisions"}],"predecessor-version":[{"id":101299,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/glossary\/20617\/revisions\/101299"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/media?parent=20617"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/categories?post=20617"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/tags?post=20617"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}