{"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\/nb\/glossary\/hydraulic-forces\/","title":{"rendered":"Hva er hydrauliske krefter? Kilder til pumpevibrasjoner"},"content":{"rendered":"<h1>Forst\u00e5 hydrauliske krefter 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\/nb\/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\/nb\/product\/balanset-1\/\" title=\"B\u00e6rbart balanseapparat og vibrasjonsanalysator 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 komplett sett med b\u00e6rbart balanseapparat og vibrasjonsanalysator\" 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\/nb\/product-category\/devices\/\" rel=\"tag\">Enheter<\/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\/nb\/product\/balanset-1\/\" title=\"B\u00e6rbart balanseapparat og vibrasjonsanalysator Balanset-1A\">B\u00e6rbart balanseapparat og vibrasjonsanalysator 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> + MVA (hvis aktuelt)<\/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=\"\/nb\/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=\"Legg i handlekurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Legg i handlekurv\" 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=\"\/nb\/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=\"Legg i handlekurv: \u00abPortable balancer &amp; Vibration analyzer Balanset-1A\u00bb\" rel=\"nofollow\" data-success_message=\"\u00abPortable balancer &amp; Vibration analyzer Balanset-1A\u00bb ble lagt til i handlekurven\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Legg i handlekurv<\/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\/nb\/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\/nb\/product\/vibration-sensor\/\" title=\"Vibrasjonssensor\">\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 vibrasjonssensor i n\u00e6rbilde\" 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\/nb\/product-category\/parts\/\" rel=\"tag\">Deler<\/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\/nb\/product\/vibration-sensor\/\" title=\"Vibrasjonssensor\">Vibrasjonssensor<\/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> + MVA (hvis aktuelt)<\/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=\"\/nb\/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=\"Legg i handlekurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Legg i handlekurv\" 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=\"\/nb\/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=\"Legg i handlekurv: \u00abVibration sensor\u00bb\" rel=\"nofollow\" data-success_message=\"\u00abVibration sensor\u00bb ble lagt til i handlekurven\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Legg i handlekurv<\/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\/nb\/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\/nb\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optisk sensor (lasertakometer)\">\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 (lasertakometer)\" 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\/nb\/product-category\/parts\/\" rel=\"tag\">Deler<\/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\/nb\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optisk sensor (lasertakometer)\">Optisk sensor (lasertakometer)<\/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> + MVA (hvis aktuelt)<\/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=\"\/nb\/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=\"Legg i handlekurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Legg i handlekurv\" 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=\"\/nb\/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=\"Legg i handlekurv: \u00abOptical Sensor (Laser Tachometer)\u00bb\" rel=\"nofollow\" data-success_message=\"\u00abOptical Sensor (Laser Tachometer)\u00bb ble lagt til i handlekurven\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Legg i handlekurv<\/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\/nb\/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\/nb\/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 rotorbalanseringssett: b\u00e6reveske, flerkanals signalbehandler, h\u00e5ndholdt analysator, magnetisk base, vibrasjonssensorer 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\/nb\/product-category\/devices\/\" rel=\"tag\">Enheter<\/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\/nb\/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> + MVA (hvis aktuelt)<\/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=\"\/nb\/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=\"Legg i handlekurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Legg i handlekurv\" 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=\"\/nb\/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=\"Legg i handlekurv: \u00abBalanset-4\u00bb\" rel=\"nofollow\" data-success_message=\"\u00abBalanset-4\u00bb ble lagt til i handlekurven\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Legg i handlekurv<\/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\/nb\/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\/nb\/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=\"Magnetisk 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\/nb\/product-category\/parts\/\" rel=\"tag\">Deler<\/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\/nb\/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> + MVA (hvis aktuelt)<\/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=\"\/nb\/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=\"Legg i handlekurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Legg i handlekurv\" 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=\"\/nb\/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=\"Legg i handlekurv: \u00abMagnetic Stand Insize-60-kgf\u00bb\" rel=\"nofollow\" data-success_message=\"\u00abMagnetic Stand Insize-60-kgf\u00bb ble lagt til i handlekurven\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Legg i handlekurv<\/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\/nb\/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\/nb\/product\/reflective-tape\/\" title=\"Refleksb\u00e5nd\">\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=\"Refleksb\u00e5nd\" 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\/nb\/product-category\/parts\/\" rel=\"tag\">Deler<\/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\/nb\/product\/reflective-tape\/\" title=\"Refleksb\u00e5nd\">Refleksb\u00e5nd<\/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> + MVA (hvis aktuelt)<\/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=\"\/nb\/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=\"Legg i handlekurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Legg i handlekurv\" 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=\"\/nb\/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=\"Legg i handlekurv: \u00abReflective tape\u00bb\" rel=\"nofollow\" data-success_message=\"\u00abReflective tape\u00bb ble lagt til i handlekurven\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Legg i handlekurv<\/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\/nb\/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\/nb\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dynamisk balanseringsapparat &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-settet inneholder grensesnittenhet, sensorer, turteller 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\/nb\/product-category\/devices\/\" rel=\"tag\">Enheter<\/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\/nb\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dynamisk balanseringsapparat &quot;Balanset-1A&quot; OEM\">Dynamisk balanseringsapparat \"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> + MVA (hvis aktuelt)<\/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=\"\/nb\/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=\"Legg i handlekurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Legg i handlekurv\" 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=\"\/nb\/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=\"Legg i handlekurv: \u00abDynamic balancer \u201cBalanset-1A\u201d OEM\u00bb\" rel=\"nofollow\" data-success_message=\"\u00abDynamic balancer \u201cBalanset-1A\u201d OEM\u00bb ble lagt til i handlekurven\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Legg i handlekurv<\/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 krefter<\/strong> er kreftene som en str\u00f8mmende v\u00e6ske ut\u00f8ver p\u00e5 pumpekomponentene: trykkbelastninger p\u00e5 l\u00f8pehjulets skovler, aksialt trykk fra trykkforskjellen over l\u00f8pehjulet, radiale krefter fra en asymmetrisk trykkfordeling, samt pulserende krefter som oppst\u00e5r p\u00e5 grunn av <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/flow-turbulence\/\">str\u00f8mningsturbulens<\/a> og samspillet mellom vinge og spiralhus. De skiller seg fundamentalt fra de mekaniske kreftene som oppst\u00e5r ved <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/unbalance\/\">ubalanse<\/a> eller <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/misalignment\/\">feiljustering<\/a>, fordi de skyldes v\u00e6sketrykk og endringer i bevegelsesmengde snarere enn roterende masse \u2014 og de viser seg i spektrumet som <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/vane-passing-frequency\/\">vingepasseringsfrekvens<\/a> og de tilh\u00f8rende harmoniske svingningene. \u00c5 forst\u00e5 disse er avgj\u00f8rende for pumpens p\u00e5litelighet: Hydrauliske krefter f\u00f8rer til belastning p\u00e5 lagrene, akselavb\u00f8yning og <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/vibration\/\">vibrasjon<\/a> som endrer seg med driftsforholdene \u2013 str\u00f8mningshastighet, trykk og v\u00e6skens egenskaper \u2013 noe som gj\u00f8r at en pumpe oppf\u00f8rer seg helt annerledes enn maskiner der kreftene er rent mekaniske.<\/p>\n<h2>1. Definisjon: Hva er hydrauliske krefter?<\/h2>\n<p>I en ideell pumpe ville v\u00e6sken ut\u00f8ve et jevnt trykk p\u00e5 alle deler av l\u00f8pehjulet og huset, og de eneste kreftene som virket p\u00e5 akselen ville v\u00e6re mekaniske. Virkeligheten er mer komplisert. Trykket er h\u00f8yere ved utl\u00f8pet enn ved innl\u00f8pet, det fordeles ujevnt rundt l\u00f8pehjulets periferi, og det pulserer hver gang en vinge passerer forbi husets tunge. Summen av disse effektene er en rekke jevne, langsomt varierende og raskt pulserende belastninger som virker p\u00e5 rotoren og konstruksjonen. Avgj\u00f8rende er at st\u00f8rrelsen p\u00e5 disse avhenger av <em>der pumpen opererer p\u00e5 sin ytelseskurve<\/em> \u2014 et faktum som gir diagnostikeren et kraftig virkemiddel, fordi endringer i str\u00f8mningen f\u00f8rer til endringer i kreftene.<\/p>\n<h2>2. Typer av hydrauliske krefter<\/h2>\n<h3>2.1 Aksialt trykk (hydraulisk trykk)<\/h3>\n<p>Den netto aksialkraften som oppst\u00e5r som f\u00f8lge av trykkforskjellen over l\u00f8pehjulet:<\/p>\n<ul>\n<li><strong>Mekanisme:<\/strong> Utl\u00f8pstrykket virker p\u00e5 den ene siden av l\u00f8pehjulet, mens sugetrykket virker p\u00e5 den andre.<\/li>\n<li><strong>Retning:<\/strong> vanligvis mot sugesiden (baksiden av l\u00f8pehjulet).<\/li>\n<li><strong>St\u00f8rrelsesorden:<\/strong> kan n\u00e5 flere tusen pund i kraft selv i pumper av moderat st\u00f8rrelse.<\/li>\n<li><strong>Effekt:<\/strong> laster inn <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/thrust-bearing\/\">aksiallager<\/a> og kan for\u00e5rsake <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/axial-vibration\/\">aksial vibrasjon<\/a>.<\/li>\n<li><strong>Varierer med:<\/strong> str\u00f8mningshastighet, trykk og l\u00f8pehjulets utforming.<\/li>\n<\/ul>\n<h4>Metoder for kraftutjevning<\/h4>\n<ul>\n<li><strong>Balansehull:<\/strong> hull gjennom l\u00f8pehjulskappen som utjevner trykket p\u00e5 tvers av den.<\/li>\n<li><strong>Bakre skovler:<\/strong> vinger p\u00e5 den bakre kappen som pumper v\u00e6ske utover for \u00e5 redusere trykket p\u00e5 baksiden.<\/li>\n<li><strong>Dobbeltsugende l\u00f8pehjul:<\/strong> et symmetrisk design der de to sidene opphever hverandres kraft.<\/li>\n<li><strong>Motsatt vendte l\u00f8pehjul:<\/strong> flertrinnspumper med l\u00f8pehjul som er plassert i motsatt retning.<\/li>\n<\/ul>\n<h3>2.2 Radialkrefter<\/h3>\n<p>Sideveis krefter som oppst\u00e5r p\u00e5 grunn av en asymmetrisk trykkfordeling rundt l\u00f8pehjulet:<\/p>\n<h4>Ved det optimale effektivitetspunktet (BEP)<\/h4>\n<ul>\n<li>Trykkfordelingen er relativt symmetrisk rundt l\u00f8pehjulet.<\/li>\n<li>Radialkreftene er i likevekt og opphever i stor grad hverandre.<\/li>\n<li>Den radiale nettokraften er minimal.<\/li>\n<li>Dette er tilstanden med lavest vibrasjon.<\/li>\n<\/ul>\n<h4>Utenfor BEP \u2014 lavt str\u00f8mningsniv\u00e5<\/h4>\n<ul>\n<li>Trykkfordelingen i spiralhuset blir asymmetrisk.<\/li>\n<li>Det oppst\u00e5r en netto radialkraft mot spiralens tunge (skj\u00e6r).<\/li>\n<li>St\u00f8rrelsen \u00f8ker n\u00e5r str\u00f8mmen avtar.<\/li>\n<li>Ved avstengning kan den utgj\u00f8re 20\u201340 % av l\u00f8pehjulets vekt.<\/li>\n<li>Den roterende radiale kraften gir seg utslag i en 1\u00d7-vibrasjon.<\/li>\n<\/ul>\n<h4>Utenfor BEP \u2014 h\u00f8yt flow<\/h4>\n<ul>\n<li>Det oppst\u00e5r et annet asymmetrim\u00f8nster.<\/li>\n<li>Det foreligger en radial kraft, men den er vanligvis mindre enn ved lavt str\u00f8mningsniv\u00e5.<\/li>\n<li>Str\u00f8mningsturbulens tilf\u00f8rer i tillegg tilfeldige kraftkomponenter.<\/li>\n<\/ul>\n<h3>2.3 Pulseringer for\u00e5rsaket av vingene<\/h3>\n<p>Periodiske trykkimpulser som oppst\u00e5r n\u00e5r hver vinge passerer foran skj\u00e6rvannet:<\/p>\n<ul>\n<li><strong>Hyppighet:<\/strong> antall vinger \u00d7 omdreininger per minutt \/ 60.<\/li>\n<li><strong>Mekanisme:<\/strong> Hver vinge som passerer tungen, skaper en trykkpuls.<\/li>\n<li><strong>Krefter:<\/strong> virker p\u00e5 l\u00f8pehjulet, spiralhuset og huset.<\/li>\n<li><strong>Vibrasjon:<\/strong> dominerende ved vingens passasjefrekvens.<\/li>\n<li><strong>St\u00f8rrelsesorden:<\/strong> avhenger av frih\u00f8yden til baugspissen, driftspunktet og konstruksjonen.<\/li>\n<\/ul>\n<h3>2.4 Resirkulasjonskrefter<\/h3>\n<ul>\n<li>Lavfrekvente ustabile krefter fra str\u00f8mningsinstabiliteter<\/li>\n<li>Oppst\u00e5r ved sv\u00e6rt lave \u2013 og noen ganger sv\u00e6rt h\u00f8ye \u2013 str\u00f8mningshastigheter.<\/li>\n<li>Frekvensene ligger vanligvis p\u00e5 0,2\u20130,8 ganger l\u00f8pehastigheten, i <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/sub-synchronous\/\">subsynkron<\/a> band.<\/li>\n<li>Kan for\u00e5rsake kraftige lavfrekvente vibrasjoner.<\/li>\n<li>Et tydelig tegn p\u00e5 drift langt fra BEP \u2014 se <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/recirculation\/\">resirkulering<\/a>.<\/li>\n<\/ul>\n<h2>3. Innvirkning p\u00e5 pumpens ytelse<\/h2>\n<h3>B\u00e6rende belastning<\/h3>\n<ul>\n<li>Hydrauliske radiale krefter bidrar til den mekaniske belastningen p\u00e5 lagrene.<\/li>\n<li>Ulike krefter p\u00e5f\u00f8rer syklisk belastning.<\/li>\n<li>Belastningen er st\u00f8rst ved lav vannf\u00f8ring.<\/li>\n<li>Valg av lager m\u00e5 ta hensyn til den hydrauliske komponenten.<\/li>\n<li>Levetiden til et lager synker kraftig med belastningen (levetiden er proporsjonal med 1\/belastning\u00b3), s\u00e5 en moderat <a href=\"https:\/\/vibromera.eu\/nb\/calculators\/bearing-load\/\">Beregning av levetid for L10-lager<\/a> kan vise i hvilken grad en lav radialkraft forkorter levetiden.<\/li>\n<\/ul>\n<h3>Akselavb\u00f8yning<\/h3>\n<ul>\n<li>Radialkrefter for\u00e5rsaker b\u00f8yning av akselen.<\/li>\n<li>Dette endrer tetningsavstandene og slitasjeringenes passform.<\/li>\n<li>Det kan redusere effektiviteten.<\/li>\n<li>I ekstreme tilfeller f\u00f8rer det til en <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/rotor-rub\/\">gni<\/a>.<\/li>\n<\/ul>\n<h3>Vibrasjonsdannelse<\/h3>\n<ul>\n<li><strong>1\u00d7 komponent:<\/strong> fra den konstante eller langsomt varierende radiale kraften.<\/li>\n<li><strong>VPF-komponent:<\/strong> fra trykkpulseringene.<\/li>\n<li><strong>Lavfrekvent:<\/strong> fra resirkulering og andre ustabiliteter.<\/li>\n<li><strong>Avhengig av driftspunkt:<\/strong> Hele bildet endrer seg med str\u00f8mningshastigheten.<\/li>\n<\/ul>\n<h3>Mekanisk belastning<\/h3>\n<ul>\n<li>Sykliske krefter p\u00e5f\u00f8rer <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/fatigue\/\">utmattelse<\/a> lasting.<\/li>\n<li>L\u00f8pehjulets skovler utsettes for belastning p\u00e5 grunn av trykkforskjellene.<\/li>\n<li>Akselen utsettes for utmattingsbelastning fra b\u00f8yemomenter.<\/li>\n<li>Huset utsettes for belastning fra trykkpulseringene.<\/li>\n<\/ul>\n<h2>4. Minimering av hydrauliske krefter<\/h2>\n<h3>Drift n\u00e6r BEP<\/h3>\n<ul>\n<li>Den aller mest effektive strategien for \u00e5 minimere hydrauliske krefter.<\/li>\n<li>Fors\u00f8k s\u00e5 langt det lar seg gj\u00f8re \u00e5 holde driften innenfor 80\u2013110 % av BEP-str\u00f8mmen.<\/li>\n<li>Radialkreftene er p\u00e5 sitt laveste ved BEP.<\/li>\n<li>Vibrasjon og lagerbelastning reduseres i fellesskap.<\/li>\n<\/ul>\n<h3>Designfunksjoner<\/h3>\n<ul>\n<li><strong>Diffusorpumper:<\/strong> en mer symmetrisk trykkfordeling enn ved bruk av \u00e9n enkelt spiralhus.<\/li>\n<li><strong>Dobbel volute:<\/strong> to skj\u00e6rbrytere som ligger 180\u00b0 fra hverandre og utligner de radiale kreftene.<\/li>\n<li><strong>\u00d8kte klaringer:<\/strong> redusere trykkpulsene som overf\u00f8res til vingene (p\u00e5 bekostning av noe av virkningsgraden).<\/li>\n<li><strong>Valg av vingetall:<\/strong> valgt for \u00e5 unng\u00e5 akustiske resonanser.<\/li>\n<\/ul>\n<h3>Systemdesign<\/h3>\n<ul>\n<li>S\u00f8rg for beskyttelse mot resirkulering ved minimumsstr\u00f8mning for grunnlastpumper.<\/li>\n<li>Velg en pumpe med riktig st\u00f8rrelse for den faktiske brukssituasjonen, og unng\u00e5 \u00e5 velge en for stor pumpe.<\/li>\n<li>Bruk en frekvensomformer for \u00e5 opprettholde det optimale driftspunktet.<\/li>\n<li>Utform innl\u00f8pet slik at forvirvling og turbulens minimeres.<\/li>\n<\/ul>\n<h2>5. Diagnostisk bruk<\/h2>\n<h3>Ytelseskurver og hydrauliske krefter<\/h3>\n<ul>\n<li>Plott vibrasjon mot str\u00f8mningshastighet.<\/li>\n<li>Vibrasjonen er vanligvis p\u00e5 eller n\u00e6r BEP.<\/li>\n<li>\u00d8kende vibrasjon ved lavt gjennomstr\u00f8mning tyder p\u00e5 store radiale krefter.<\/li>\n<li>Grafen bidrar til \u00e5 fastsette et fornuftig driftsomr\u00e5de.<\/li>\n<\/ul>\n<h3>VPF-analyse<\/h3>\n<ul>\n<li>VPF-amplituden angir hvor sterk den hydrauliske pulseringen er.<\/li>\n<li>En \u00f8kende VPF kan tyde p\u00e5 d\u00e5rligere klaringer eller en endring i driftspunktet.<\/li>\n<li>VPF <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/harmonics\/\">harmoniske<\/a> tyder p\u00e5 turbulent, urolig str\u00f8mning.<\/li>\n<\/ul>\n<p>\u00c5 skille disse hydrauliske signalene fra de rent mekaniske er kjernen i pumpediagnostikk, og det er her en b\u00e6rbar analysator viser sin verdi i felten. Den <a href=\"https:\/\/vibromera.eu\/nb\/produkt\/balanset-1\/\">Balanset-1A<\/a> fanger opp <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/spectrum\/\">vibrasjonsspektrum<\/a> p\u00e5 lagerhusene og skiller ut 1\u00d7-, VPF- og lavfrekvenskomponentene, slik at en ingeni\u00f8r kan avgj\u00f8re om en h\u00f8y m\u00e5leverdi krever <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/feltbalansering\/\">feltbalansering<\/a> (en mekanisk l\u00f8sning) eller en endring av driftspunktet (en hydraulisk l\u00f8sning) \u2013 og der diagnosen tyder p\u00e5 ubalanse, m\u00e5 rotoren balanseres og resultatet kontrolleres umiddelbart.<\/p>\n<h2>6. Hensyn ved m\u00e5ling<\/h2>\n<h3>M\u00e5lepunkter for vibrasjon<\/h3>\n<ul>\n<li><strong>Lagerhus:<\/strong> registrere de samlede mekaniske og hydrauliske kreftene.<\/li>\n<li><strong>Pumpehus:<\/strong> mer f\u00f8lsom for hydrauliske svingninger.<\/li>\n<li><strong>Sug- og trykkr\u00f8r:<\/strong> overf\u00f8re trykkpulseringene.<\/li>\n<li><strong>Flere steder:<\/strong> Ved \u00e5 sammenligne dem kan man skille mellom hydrauliske og mekaniske \u00e5rsaker.<\/li>\n<\/ul>\n<h3>M\u00e5ling av trykkpulsering<\/h3>\n<ul>\n<li>Monter trykktransdusere i suge- og trykkr\u00f8ret.<\/li>\n<li>Disse m\u00e5ler de hydrauliske pulseringene direkte.<\/li>\n<li>Sammenlign pulsasjonsdataene med vibrasjonen.<\/li>\n<li>Bruk kombinasjonen til \u00e5 identifisere akustiske resonanser.<\/li>\n<\/ul>\n<p>Hydrauliske krefter er avgj\u00f8rende for hvordan en pumpe fungerer, og utgj\u00f8r en viktig kilde til vibrasjon og belastning. \u00c5 forst\u00e5 hvordan disse kreftene varierer med driftsforholdene, gjenkjenne deres karakteristiske m\u00f8nstre i vibrasjonsspekteret, samt \u00e5 konstruere og drifte pumper slik at kreftene holdes lave \u2013 hovedsakelig ved \u00e5 kj\u00f8re n\u00e6r BEP \u2013 er avgj\u00f8rende for \u00e5 oppn\u00e5 p\u00e5litelig og langvarig pumpeytelse i industriell drift. For en mer inng\u00e5ende gjennomgang av feilene som disse kreftene for\u00e5rsaker, se <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/centrifugal-pump-defects\/\">feil p\u00e5 sentrifugalpumper<\/a> og <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/impeller-defects\/\">feil ved l\u00f8pehjulet<\/a>.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/nb\/glossary\/\">\u2190 Tilbake til hovedindeksen<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>L\u00e6r om hydrauliske krefter i pumper, trykkinduserte belastninger fra v\u00e6skestr\u00f8m som skaper vibrasjoner ved skovlpasseringsfrekvens, aksial skyvekraft og radielle krefter som p\u00e5virker p\u00e5liteligheten.<\/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\/nb\/wp-json\/wp\/v2\/glossary\/140","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/glossary\/140\/revisions"}],"predecessor-version":[{"id":101337,"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/glossary\/140\/revisions\/101337"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/media?parent=140"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/categories?post=140"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/tags?post=140"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}