{"id":140,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/hydraulic-forces\/"},"modified":"2026-05-23T22:43:23","modified_gmt":"2026-05-23T22:43:23","slug":"hydraulic-forces","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/da\/glossary\/hydraulic-forces\/","title":{"rendered":"Hvad er hydrauliske kr\u00e6fter? Kilder til pumpevibrationer"},"content":{"rendered":"<h1>Forst\u00e5else af hydrauliske kr\u00e6fter i pumper<\/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\/da\/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\/da\/product\/balanset-1\/\" title=\"B\u00e6rbart afbalanceringsapparat og vibrationsanalysator 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 komplet s\u00e6t med b\u00e6rbar afbalanceringsenhed og vibrationsanalysator\" 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\/da\/product-category\/devices\/\" rel=\"tag\">Enheder<\/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\/da\/product\/balanset-1\/\" title=\"B\u00e6rbart afbalanceringsapparat og vibrationsanalysator Balanset-1A\">B\u00e6rbart afbalanceringsapparat og vibrationsanalysator 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> + moms (hvis relevant)<\/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=\"\/da\/wp-json\/wp\/v2\/glossary\/140?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=\"Tilf\u00f8j til kurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Tilf\u00f8j til kurv\" 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=\"\/da\/wp-json\/wp\/v2\/glossary\/140?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=\"L\u00e6g i kurv: \u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"\u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d er blevet tilf\u00f8jet til din kurv\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Tilf\u00f8j til kurv<\/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\/da\/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\/da\/product\/vibration-sensor\/\" title=\"Vibrationssensor\">\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 vibrationssensor i n\u00e6rbillede\" 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\/da\/product-category\/parts\/\" rel=\"tag\">Dele<\/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\/da\/product\/vibration-sensor\/\" title=\"Vibrationssensor\">Vibrationssensor<\/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> + moms (hvis relevant)<\/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=\"\/da\/wp-json\/wp\/v2\/glossary\/140?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=\"Tilf\u00f8j til kurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Tilf\u00f8j til kurv\" 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=\"\/da\/wp-json\/wp\/v2\/glossary\/140?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=\"L\u00e6g i kurv: \u201cVibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"\u201cVibration sensor\u201d er blevet tilf\u00f8jet til din kurv\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Tilf\u00f8j til kurv<\/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\/da\/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\/da\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optisk sensor (laser-tachometer)\">\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=\"Optisk sensor (laser-tachometer)\" 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\/da\/product-category\/parts\/\" rel=\"tag\">Dele<\/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\/da\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optisk sensor (laser-tachometer)\">Optisk sensor (laser-tachometer)<\/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> + moms (hvis relevant)<\/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=\"\/da\/wp-json\/wp\/v2\/glossary\/140?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=\"Tilf\u00f8j til kurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Tilf\u00f8j til kurv\" 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=\"\/da\/wp-json\/wp\/v2\/glossary\/140?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=\"L\u00e6g i kurv: \u201cOptical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"\u201cOptical Sensor (Laser Tachometer)\u201d er blevet tilf\u00f8jet til din kurv\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Tilf\u00f8j til kurv<\/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\/da\/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\/da\/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 rotorbalanceringss\u00e6t: b\u00e6retaske, flerkanals signalbehandler, h\u00e5ndholdt analysator, magnetisk base, vibrationssensorer og spiralkabler.\" 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\/da\/product-category\/devices\/\" rel=\"tag\">Enheder<\/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\/da\/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> + moms (hvis relevant)<\/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=\"\/da\/wp-json\/wp\/v2\/glossary\/140?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=\"Tilf\u00f8j til kurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Tilf\u00f8j til kurv\" 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=\"\/da\/wp-json\/wp\/v2\/glossary\/140?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=\"L\u00e6g i kurv: \u201cBalanset-4\u201d\" rel=\"nofollow\" data-success_message=\"\u201cBalanset-4\u201d er blevet tilf\u00f8jet til din kurv\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Tilf\u00f8j til kurv<\/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\/da\/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\/da\/product\/magnet-stand\/\" title=\"Magnetisk stativ 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=\"Magnetbase.\" 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\/da\/product-category\/parts\/\" rel=\"tag\">Dele<\/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\/da\/product\/magnet-stand\/\" title=\"Magnetisk stativ Insize-60-kgf\">Magnetisk stativ 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> + moms (hvis relevant)<\/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=\"\/da\/wp-json\/wp\/v2\/glossary\/140?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=\"Tilf\u00f8j til kurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Tilf\u00f8j til kurv\" 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=\"\/da\/wp-json\/wp\/v2\/glossary\/140?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=\"L\u00e6g i kurv: \u201cMagnetic Stand Insize-60-kgf\u201d\" rel=\"nofollow\" data-success_message=\"\u201cMagnetic Stand Insize-60-kgf\u201d er blevet tilf\u00f8jet til din kurv\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Tilf\u00f8j til kurv<\/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\/da\/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\/da\/product\/reflective-tape\/\" title=\"Reflekterende tape\">\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=\"Reflekterende tape\" 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\/da\/product-category\/parts\/\" rel=\"tag\">Dele<\/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\/da\/product\/reflective-tape\/\" title=\"Reflekterende tape\">Reflekterende tape<\/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> + moms (hvis relevant)<\/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=\"\/da\/wp-json\/wp\/v2\/glossary\/140?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=\"Tilf\u00f8j til kurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Tilf\u00f8j til kurv\" 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=\"\/da\/wp-json\/wp\/v2\/glossary\/140?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=\"L\u00e6g i kurv: \u201cReflective tape\u201d\" rel=\"nofollow\" data-success_message=\"\u201cReflective tape\u201d er blevet tilf\u00f8jet til din kurv\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Tilf\u00f8j til kurv<\/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\/da\/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\/da\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dynamisk balancer &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=\"Balanset-1A-s\u00e6t med interface-enhed, sensorer, omdrejningst\u00e6ller og tilbeh\u00f8r\" 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\/da\/product-category\/devices\/\" rel=\"tag\">Enheder<\/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\/da\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dynamisk balancer &quot;Balanset-1A&quot; OEM\">Dynamisk balancer \"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> + moms (hvis relevant)<\/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=\"\/da\/wp-json\/wp\/v2\/glossary\/140?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=\"Tilf\u00f8j til kurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Tilf\u00f8j til kurv\" 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=\"\/da\/wp-json\/wp\/v2\/glossary\/140?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=\"L\u00e6g i kurv: \u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"\u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d er blevet tilf\u00f8jet til din kurv\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Tilf\u00f8j til kurv<\/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>Hydrauliske kr\u00e6fter<\/strong> er de kr\u00e6fter, som en str\u00f8mmende v\u00e6ske ud\u00f8ver p\u00e5 pumpens komponenter: trykbelastninger p\u00e5 pumpehjulets skovle, aksialt tryk som f\u00f8lge af trykforskellen p\u00e5 tv\u00e6rs af pumpehjulet, radiale kr\u00e6fter fra en asymmetrisk trykfordeling samt pulserende kr\u00e6fter, der opst\u00e5r som f\u00f8lge af <a href=\"https:\/\/vibromera.eu\/da\/glossary\/flow-turbulence\/\">str\u00f8mningsturbulens<\/a> og samspillet mellem vinge og spiralhus. De adskiller sig fundamentalt fra de mekaniske kr\u00e6fter, der frembringes af <a href=\"https:\/\/vibromera.eu\/da\/glossary\/unbalance\/\">ubalance<\/a> eller <a href=\"https:\/\/vibromera.eu\/da\/glossary\/misalignment\/\">fejljustering<\/a>, fordi de skyldes v\u00e6sketryk og \u00e6ndringer i impuls i stedet for roterende masse \u2014 og de viser sig i spektret som <a href=\"https:\/\/vibromera.eu\/da\/glossary\/vane-passing-frequency\/\">vingepassagefrekvens<\/a> og de dermed forbundne harmoniske svingninger. Det er afg\u00f8rende at forst\u00e5 disse for at sikre pumpens p\u00e5lidelighed: Hydrauliske kr\u00e6fter medf\u00f8rer belastning af lejer, afb\u00f8jning af akslen og <a href=\"https:\/\/vibromera.eu\/da\/glossary\/vibration\/\">vibrationer<\/a> som \u00e6ndrer sig afh\u00e6ngigt af driftsforholdene \u2014 gennemstr\u00f8mningshastighed, tryk og v\u00e6skens egenskaber \u2014 hvilket f\u00e5r en pumpe til at opf\u00f8re sig helt anderledes end maskiner, hvis kr\u00e6fter udelukkende er mekaniske.<\/p>\n<h2>1. Definition: Hvad er hydrauliske kr\u00e6fter?<\/h2>\n<p>I en ideel pumpe ville v\u00e6sken ud\u00f8ve et j\u00e6vnt tryk p\u00e5 alle dele af pumpehjulet og pumpehuset, og de eneste kr\u00e6fter, der virkede p\u00e5 akslen, ville v\u00e6re mekaniske. Virkeligheden er mere kompliceret. Trykket er h\u00f8jere ved udl\u00f8bet end ved indl\u00f8bet, det fordeles uj\u00e6vnt rundt om pumpehjulets omkreds, og det pulserer hver gang en vinge passerer forbi husets tunge. Summen af disse effekter er en r\u00e6kke konstante, langsomt varierende og hurtigt pulserende belastninger, der virker p\u00e5 rotoren og konstruktionen. Af afg\u00f8rende betydning er, at deres st\u00f8rrelse afh\u00e6nger af <em>hvor pumpen k\u00f8rer p\u00e5 sin kurve<\/em> \u2014 et faktum, der giver den diagnostiske ingeni\u00f8r et st\u00e6rkt redskab, for n\u00e5r str\u00f8mningen \u00e6ndres, \u00e6ndres kr\u00e6fterne.<\/p>\n<h2>2. Typer af hydrauliske kr\u00e6fter<\/h2>\n<h3>2.1 Aksialkraft (hydraulisk trykkraft)<\/h3>\n<p>Den samlede aksialkraft, der skyldes trykforskellen p\u00e5 tv\u00e6rs af pumpehjulet:<\/p>\n<ul>\n<li><strong>Mekanisme:<\/strong> Trykket p\u00e5 udl\u00f8bssiden virker p\u00e5 den ene side af pumpehjulet, mens trykket p\u00e5 indsugningssiden virker p\u00e5 den anden side.<\/li>\n<li><strong>Retning:<\/strong> normalt mod sugesiden (bagsiden af pumpehjulet).<\/li>\n<li><strong>St\u00f8rrelsesorden:<\/strong> kan n\u00e5 op p\u00e5 flere tusinde pund kraft, selv i pumper af moderat st\u00f8rrelse.<\/li>\n<li><strong>Effekt:<\/strong> loads the <a href=\"https:\/\/vibromera.eu\/da\/glossary\/thrust-bearing\/\">trykleje<\/a> and can cause <a href=\"https:\/\/vibromera.eu\/da\/glossary\/axial-vibration\/\">aksial vibration<\/a>.<\/li>\n<li><strong>Varierer med:<\/strong> gennemstr\u00f8mningshastighed, tryk og pumpehjulets udformning.<\/li>\n<\/ul>\n<h4>Metoder til udligning af tryk<\/h4>\n<ul>\n<li><strong>Balance holes:<\/strong> huller gennem pumpehjulets d\u00e6kskive, der udligner trykket p\u00e5 tv\u00e6rs af den.<\/li>\n<li><strong>Back vanes:<\/strong> skovle p\u00e5 den bageste d\u00e6kskive, der pumper v\u00e6ske udad for at s\u00e6nke trykket p\u00e5 bagsiden.<\/li>\n<li><strong>Dobbeltindsugningshjul:<\/strong> et symmetrisk design, hvor de to sider oph\u00e6ver hinandens trykkraft.<\/li>\n<li><strong>Modsatrettede l\u00f8behjul:<\/strong> flertrinspumper, hvor pumpehjulene vender i modsatte retninger.<\/li>\n<\/ul>\n<h3>2.2 Radiale kr\u00e6fter<\/h3>\n<p>Sidev\u00e6rts kr\u00e6fter, der opst\u00e5r som f\u00f8lge af en asymmetrisk trykfordeling omkring pumpehjulet:<\/p>\n<h4>Ved det optimale effektivitetspunkt (BEP)<\/h4>\n<ul>\n<li>Trykfordelingen er forholdsvis symmetrisk omkring l\u00f8behjulet.<\/li>\n<li>De radiale kr\u00e6fter er i balance og oph\u00e6ver stort set hinanden.<\/li>\n<li>Den radiale nettokraft er minimal.<\/li>\n<li>Dette er den tilstand, hvor der er mindst vibrationer.<\/li>\n<\/ul>\n<h4>Uden for BEP \u2014 lavt flow<\/h4>\n<ul>\n<li>Trykfordelingen i spiralhuset bliver asymmetrisk.<\/li>\n<li>Der opst\u00e5r en netto radialkraft i retning af spiralhusets tunge (cutwater).<\/li>\n<li>Dens st\u00f8rrelse \u00f8ges, n\u00e5r gennemstr\u00f8mningen falder.<\/li>\n<li>Ved afbrydelse kan det udg\u00f8re 20\u201340 % af pumpehjulets v\u00e6gt.<\/li>\n<li>Den roterende radiale kraft manifesterer sig som en 1\u00d7-vibration.<\/li>\n<\/ul>\n<h4>Uden for BEP \u2014 h\u00f8jt flow<\/h4>\n<ul>\n<li>Der opst\u00e5r et andet asymmetrim\u00f8nster.<\/li>\n<li>Der er en radial kraft til stede, men den er typisk mindre end ved lavt flow.<\/li>\n<li>Str\u00f8mningsturbulens tilf\u00f8jer tilf\u00e6ldige kraftkomponenter oveni.<\/li>\n<\/ul>\n<h3>2.3 Pulseringer for\u00e5rsaget af vinger<\/h3>\n<p>Periodiske trykpulser, der opst\u00e5r, n\u00e5r hver skovl passerer cutwater:<\/p>\n<ul>\n<li><strong>Frekvens:<\/strong> antal vinger \u00d7 omdrejningstal \/ 60.<\/li>\n<li><strong>Mekanisme:<\/strong> Hver vinge, der passerer tungen, genererer en trykimpuls.<\/li>\n<li><strong>Kr\u00e6fter:<\/strong> virker p\u00e5 pumpehjulet, spiralhuset og pumpehuset.<\/li>\n<li><strong>Vibrationer:<\/strong> dominerende ved skovlpassagefrekvensen.<\/li>\n<li><strong>St\u00f8rrelsesorden:<\/strong> afh\u00e6nger af spalten ved cutwater, driftspunktet og konstruktionen.<\/li>\n<\/ul>\n<h3>2.4 Recirkulationskr\u00e6fter<\/h3>\n<ul>\n<li>Lavfrekvente ustabile kr\u00e6fter fra str\u00f8mningsinstabiliteter<\/li>\n<li>Forekommer ved meget lave \u2014 og undertiden meget h\u00f8je \u2014 gennemstr\u00f8mningshastigheder.<\/li>\n<li>Frekvenser p\u00e5 typisk 0,2\u20130,8 gange l\u00f8behastigheden, i <a href=\"https:\/\/vibromera.eu\/da\/glossary\/sub-synchronous\/\">subsynkron<\/a> band.<\/li>\n<li>Kan for\u00e5rsage kraftige lavfrekvente vibrationer.<\/li>\n<li>Et tydeligt tegn p\u00e5, at driften ligger langt fra BEP \u2014 se <a href=\"https:\/\/vibromera.eu\/da\/glossary\/recirculation\/\">recirkulation<\/a>.<\/li>\n<\/ul>\n<h2>3. Indvirkning p\u00e5 pumpens ydeevne<\/h2>\n<h3>Lejebelastning<\/h3>\n<ul>\n<li>Hydrauliske radialkr\u00e6fter \u00f8ger den mekaniske belastning p\u00e5 lejerne.<\/li>\n<li>Forskellige kr\u00e6fter ud\u00f8ver cyklisk belastning.<\/li>\n<li>Belastningen er st\u00f8rst ved lavt flow.<\/li>\n<li>Ved valg af leje skal der tages h\u00f8jde for den hydrauliske komponent.<\/li>\n<li>Lejets levetid falder kraftigt med belastningen (levetiden er proportional med 1\/(belastning\u00b3)), s\u00e5 en moderat <a href=\"https:\/\/vibromera.eu\/da\/calculators\/bearing-load\/\">Beregning af L10-lejelevetid<\/a> kan vise, hvor meget en radialkraft ved lavt flow forkorter levetiden.<\/li>\n<\/ul>\n<h3>Akselafb\u00f8jning<\/h3>\n<ul>\n<li>Radialkr\u00e6fter b\u00f8jer akslen.<\/li>\n<li>Dette \u00e6ndrer t\u00e6tningsafstanden og slibringens pasform.<\/li>\n<li>Det kan mindske effektiviteten.<\/li>\n<li>I ekstreme tilf\u00e6lde f\u00f8rer det til en <a href=\"https:\/\/vibromera.eu\/da\/glossary\/rotor-rub\/\">rub<\/a>.<\/li>\n<\/ul>\n<h3>Generering af vibrationer<\/h3>\n<ul>\n<li><strong>1\u00d7 component:<\/strong> fra den konstante eller langsomt varierende radiale kraft.<\/li>\n<li><strong>VPF-komponent:<\/strong> fra trykudsvingene.<\/li>\n<li><strong>Low-frequency:<\/strong> fra recirkulation og andre ustabiliteter.<\/li>\n<li><strong>Afh\u00e6ngigt af driftspunktet:<\/strong> Det samlede billede \u00e6ndrer sig afh\u00e6ngigt af gennemstr\u00f8mningshastigheden.<\/li>\n<\/ul>\n<h3>Mekanisk belastning<\/h3>\n<ul>\n<li>Cykliske kr\u00e6fter ud\u00f8ver <a href=\"https:\/\/vibromera.eu\/da\/glossary\/fatigue\/\">tr\u00e6thed<\/a> loading.<\/li>\n<li>L\u00f8behjulets skovle uds\u00e6ttes for belastning som f\u00f8lge af trykforskellene.<\/li>\n<li>Akslen uds\u00e6ttes for udmattelse som f\u00f8lge af b\u00f8jningsmomenter.<\/li>\n<li>Kabinettet uds\u00e6ttes for belastning fra trykpulseringerne.<\/li>\n<\/ul>\n<h2>4. Minimering af hydrauliske kr\u00e6fter<\/h2>\n<h3>Drift t\u00e6t p\u00e5 BEP<\/h3>\n<ul>\n<li>Den absolut mest effektive strategi til at minimere de hydrauliske kr\u00e6fter.<\/li>\n<li>S\u00f8rg for at holde driften inden for 80\u2013110 % af BEP-gennemstr\u00f8mningen, hvor det er muligt.<\/li>\n<li>Radialkr\u00e6fterne er mindst ved BEP.<\/li>\n<li>Vibrationer og lejebelastninger minimeres i f\u00e6llesskab.<\/li>\n<\/ul>\n<h3>Designfunktioner<\/h3>\n<ul>\n<li><strong>Diffuser-pumper:<\/strong> en mere symmetrisk trykfordeling end et enkelt spiralhus.<\/li>\n<li><strong>Dobbelt spiralhus:<\/strong> to b\u00f8lgebrydere, der er placeret 180\u00b0 fra hinanden og udligner de radiale kr\u00e6fter.<\/li>\n<li><strong>St\u00f8rre frirum:<\/strong> reducerer trykpulser ved skovlpassage (p\u00e5 bekostning af en vis effektivitet).<\/li>\n<li><strong>Valg af vingetal:<\/strong> valgt for at undg\u00e5 akustiske resonanser.<\/li>\n<\/ul>\n<h3>System design<\/h3>\n<ul>\n<li>S\u00f8rg for beskyttelse mod recirkulation ved minimalt flow for basislastpumper.<\/li>\n<li>V\u00e6lg en pumpe, der passer til den faktiske opgave, og undg\u00e5 at v\u00e6lge en for stor pumpe.<\/li>\n<li>Brug en frekvensomformer til at holde det optimale driftspunkt.<\/li>\n<li>Indl\u00f8bet skal udformes s\u00e5ledes, at forhvirvling og turbulens minimeres.<\/li>\n<\/ul>\n<h2>5. Diagnostisk anvendelse<\/h2>\n<h3>Ydelseskurver og hydrauliske kr\u00e6fter<\/h3>\n<ul>\n<li>Plot vibrationerne mod gennemstr\u00f8mningshastigheden.<\/li>\n<li>Vibrationerne er typisk mindst ved eller t\u00e6t p\u00e5 det optimale driftspunkt.<\/li>\n<li>Stigende vibrationer ved lavt flow indikerer store radiale kr\u00e6fter.<\/li>\n<li>Grafen er med til at fastl\u00e6gge et fornuftigt driftsomr\u00e5de.<\/li>\n<\/ul>\n<h3>VPF analysis<\/h3>\n<ul>\n<li>VPF-amplituden angiver alvoren af den hydrauliske pulsering.<\/li>\n<li>En stigende VPF-v\u00e6rdi tyder p\u00e5 forv\u00e6rrede spalter eller en forskydning af driftspunktet.<\/li>\n<li>VPF <a href=\"https:\/\/vibromera.eu\/da\/glossary\/harmonics\/\">harmoniske<\/a> tyder p\u00e5 turbulent, urolig str\u00f8mning.<\/li>\n<\/ul>\n<p>At skelne disse hydrauliske signaler fra de rent mekaniske er kernen i pumpediagnostik, og det er her, en b\u00e6rbar analysator viser sit v\u00e6rd p\u00e5 stedet. Den <a href=\"https:\/\/vibromera.eu\/da\/vare-2\/balanset-1\/\">Balanset-1A<\/a> captures the <a href=\"https:\/\/vibromera.eu\/da\/glossary\/spectrum\/\">vibrationsspektrum<\/a> p\u00e5 lejehusene og udskiller 1\u00d7-, VPF- og lavfrekvenskomponenterne, s\u00e5 en ingeni\u00f8r kan vurdere, om en h\u00f8j m\u00e5lev\u00e6rdi kr\u00e6ver <a href=\"https:\/\/vibromera.eu\/da\/glossary\/feltbalancering\/\">feltafbalancering<\/a> (en mekanisk l\u00f8sning) eller en \u00e6ndring af driftspunktet (en hydraulisk l\u00f8sning) \u2014 og hvis diagnosen tyder p\u00e5 ubalance, skal rotoren afbalanceres, og resultatet skal kontrolleres p\u00e5 stedet.<\/p>\n<h2>6. Overvejelser vedr\u00f8rende m\u00e5ling<\/h2>\n<h3>M\u00e5lepunkter for vibrationer<\/h3>\n<ul>\n<li><strong>Lejehus:<\/strong> registrere de samlede mekaniske og hydrauliske kr\u00e6fter.<\/li>\n<li><strong>Pump casing:<\/strong> mere f\u00f8lsom over for hydrauliske svingninger.<\/li>\n<li><strong>Suge- og udl\u00f8bsr\u00f8r:<\/strong> overf\u00f8re de transmitterede trykpulseringer.<\/li>\n<li><strong>Flere steder:<\/strong> Ved at sammenligne dem kan man skelne mellem hydrauliske og mekaniske \u00e5rsager.<\/li>\n<\/ul>\n<h3>M\u00e5ling af trykpulseringer<\/h3>\n<ul>\n<li>Monter trykf\u00f8lere i suge- og tryksiden.<\/li>\n<li>Disse m\u00e5ler de hydrauliske pulseringer direkte.<\/li>\n<li>Sammenhold pulsationsdataene med vibrationerne.<\/li>\n<li>Brug kombinationen til at identificere akustiske resonanser.<\/li>\n<\/ul>\n<p>Hydrauliske kr\u00e6fter er afg\u00f8rende for, hvordan en pumpe fungerer, og udg\u00f8r en v\u00e6sentlig kilde til dens vibrationer og belastning. Det er afg\u00f8rende for at opn\u00e5 en p\u00e5lidelig pumpeydelse med lang levetid i industriel drift at forst\u00e5, hvordan disse kr\u00e6fter varierer afh\u00e6ngigt af driftsforholdene, at kunne genkende deres karakteristiske m\u00f8nstre i vibrationsspektret samt at konstruere og drive pumperne s\u00e5ledes, at kr\u00e6fterne holdes p\u00e5 et lavt niveau \u2013 prim\u00e6rt ved at k\u00f8re t\u00e6t p\u00e5 det optimale driftspunkt (BEP). For en mere uddybende gennemgang af de fejl, som disse kr\u00e6fter for\u00e5rsager, se <a href=\"https:\/\/vibromera.eu\/da\/glossary\/centrifugal-pump-defects\/\">fejl ved centrifugalpumper<\/a> og <a href=\"https:\/\/vibromera.eu\/da\/glossary\/impeller-defects\/\">defekter ved pumpehjulet<\/a>.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/da\/glossary\/\">\u2190 Tilbage til hovedindekset<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>L\u00e6r om hydrauliske kr\u00e6fter i pumper, trykinducerede belastninger fra v\u00e6skestr\u00f8mning, der skaber vibrationer ved skovlpassagefrekvens, aksial trykkraft og radiale kr\u00e6fter, der p\u00e5virker p\u00e5lideligheden.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[109,110],"tags":[],"class_list":["post-140","glossary","type-glossary","status-publish","hentry","category-glossary","category-vibration-diagnostics"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/da\/wp-json\/wp\/v2\/glossary\/140","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/da\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/da\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/da\/wp-json\/wp\/v2\/glossary\/140\/revisions"}],"predecessor-version":[{"id":101337,"href":"https:\/\/vibromera.eu\/da\/wp-json\/wp\/v2\/glossary\/140\/revisions\/101337"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/da\/wp-json\/wp\/v2\/media?parent=140"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/da\/wp-json\/wp\/v2\/categories?post=140"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/da\/wp-json\/wp\/v2\/tags?post=140"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}