{"id":70942,"date":"2025-12-11T07:36:41","date_gmt":"2025-12-11T12:36:41","guid":{"rendered":"https:\/\/blogs.sw.siemens.com\/simcenter\/?p=70942"},"modified":"2026-03-26T06:53:24","modified_gmt":"2026-03-26T10:53:24","slug":"simcenter-3d-2512-active-magnetic-bearings-in-turbomachines","status":"publish","type":"post","link":"https:\/\/blogs.sw.siemens.com\/simcenter\/simcenter-3d-2512-active-magnetic-bearings-in-turbomachines\/","title":{"rendered":"Simcenter 3D 2512: Active magnetic bearings in turbomachines"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Introduction<\/h2>\n\n\n\n<p>Using Active Magnetic bearings in turbomachines has many benefits. High-speed turbocompressors, pumps, and turbines utilise them to reduce friction in the system, thereby boosting efficiency and increasing the machine&#8217;s lifetime.&nbsp; In such turbomachines, the shaft is maintained in levitation in the electromagnetic field inside the bearing housing.&nbsp; &nbsp;This is possible thanks to digital controllers that control the applied electromagnetic force on the shaft, from the vibrations measured at a sensor location, and a transfer function.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Magnetic bearing\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/1KPqISLErBg?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Simcenter 3D advanced capabilities for active magnetic bearings<\/h2>\n\n\n\n<p>In <a href=\"https:\/\/plm.sw.siemens.com\/en-US\/simcenter\/simulation-test\/structural-dynamics-simulation\/\" target=\"_blank\" rel=\"noopener\">Simcenter 3D<\/a> 2512, you can now define active magnetic bearings in your rotor dynamics simulation.&nbsp; The active magnetic bearing uses a magnetic pull and a digital controller that monitors a sensor node for rotor displacement. The digital controller sends the displacement through a series of analytical functions and then sends the result of these functions to an actuator node, which uses a force load to adjust the position of the rotor.&nbsp;&nbsp; The effects of the magnetic bearings can be observed on the Campbell diagram, in the complex modes, and in the system&#8217;s response in the frequency domain.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Active Magnetic Bearings Workflow<\/h2>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69ffd952bce8c&quot;}\" data-wp-interactive=\"core\/image\" class=\"wp-block-image size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"428\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on-async--click=\"actions.showLightbox\" data-wp-on-async--load=\"callbacks.setButtonStyles\" data-wp-on-async-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/blogs.sw.siemens.com\/wp-content\/uploads\/sites\/6\/2025\/12\/Active-magnetic-bearing-workflow-1024x428.png\" alt=\"Active magnetic bearings workflow\" class=\"wp-image-70944\" srcset=\"https:\/\/blogs.sw.siemens.com\/wp-content\/uploads\/sites\/6\/2025\/12\/Active-magnetic-bearing-workflow-1024x428.png 1024w, https:\/\/blogs.sw.siemens.com\/wp-content\/uploads\/sites\/6\/2025\/12\/Active-magnetic-bearing-workflow-600x251.png 600w, https:\/\/blogs.sw.siemens.com\/wp-content\/uploads\/sites\/6\/2025\/12\/Active-magnetic-bearing-workflow-768x321.png 768w, https:\/\/blogs.sw.siemens.com\/wp-content\/uploads\/sites\/6\/2025\/12\/Active-magnetic-bearing-workflow-1536x641.png 1536w, https:\/\/blogs.sw.siemens.com\/wp-content\/uploads\/sites\/6\/2025\/12\/Active-magnetic-bearing-workflow-2048x855.png 2048w, https:\/\/blogs.sw.siemens.com\/wp-content\/uploads\/sites\/6\/2025\/12\/Active-magnetic-bearing-workflow-900x376.png 900w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Enlarge\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on-async--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n\n<p><strong>Step 1: Prepare the transfer function of the controller<\/strong><\/p>\n\n\n\n<p>The transfer function of the controller, F(s), can be composed of one or several analytical functions, encapsulated in controller building blocks.&nbsp; Prepare the controller building blocks by choosing your desired types of analytical functions and set their parameters.&nbsp; Optionally, building blocks can also be imported from an existing simulation.&nbsp;<\/p>\n\n\n\n<div class=\"wp-block-cb-carousel-v2 cb-carousel-block\" data-cb-slides-per-view=\"1\" data-cb-slides-per-group=\"1\" data-cb-space-between=\"15\" data-cb-speed=\"300\" data-cb-navigation=\"true\" data-cb-pagination=\"true\" data-cb-breakpoints=\"{&quot;768&quot;:{&quot;slidesPerView&quot;:3,&quot;slidesPerGroup&quot;:1}}\"><div class=\"swiper\"><div class=\"cb-wrapper swiper-wrapper\">\n<div class=\"wp-block-cb-slide-v2 cb-slide swiper-slide\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69ffd952bdd5b&quot;}\" data-wp-interactive=\"core\/image\" class=\"wp-block-image size-full wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"452\" height=\"463\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on-async--click=\"actions.showLightbox\" data-wp-on-async--load=\"callbacks.setButtonStyles\" data-wp-on-async-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/blogs.sw.siemens.com\/wp-content\/uploads\/sites\/6\/2025\/12\/controller-building-blocks-1.png\" alt=\"\" class=\"wp-image-70948\"\/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Enlarge\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on-async--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-cb-slide-v2 cb-slide swiper-slide\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69ffd952be4f8&quot;}\" data-wp-interactive=\"core\/image\" class=\"wp-block-image size-full wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"594\" height=\"556\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on-async--click=\"actions.showLightbox\" data-wp-on-async--load=\"callbacks.setButtonStyles\" data-wp-on-async-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/blogs.sw.siemens.com\/wp-content\/uploads\/sites\/6\/2025\/12\/controller-building-blocks-2.png\" alt=\"\" class=\"wp-image-70949\"\/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Enlarge\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on-async--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n<\/div>\n<\/div><\/div><div class=\"cb-pagination swiper-pagination\"><\/div><div class=\"cb-button-prev swiper-button-prev\"><\/div><div class=\"cb-button-next swiper-button-next\"><\/div><\/div>\n\n\n\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-8cf370e7 wp-block-group-is-layout-flex\">\n<p class=\"has-large-font-size wp-container-content-9cfa9a5a\"><strong>q<sub>out<\/sub> = F(s)q<sub>in<\/sub><\/strong><\/p>\n\n\n\n<p class=\"wp-container-content-9cfa9a5a\">Where:<br><strong>q<sub>out<\/sub><\/strong> is the actuator output (force) in the laplace domain<\/p>\n\n\n\n<p class=\"wp-container-content-9cfa9a5a\"><strong>q<sub>in<\/sub><\/strong> is the sensor input (displacement) in the laplace domain<\/p>\n\n\n\n<p class=\"wp-container-content-9cfa9a5a\"><strong>F(s) <\/strong>is the laplace transform of the transform function, with all initial conditions assumed to be zero<\/p>\n\n\n\n<p class=\"wp-container-content-9cfa9a5a\"><strong>s<\/strong> is the laplace variable<\/p>\n<\/div>\n\n\n\n<p><br><strong>Step 2: Prepare the model and the digital controllers<\/strong><\/p>\n\n\n\n<p>Model the magnetic pull from a radial bearing or bushing with a negative stiffness<\/p>\n\n\n\n<p>Prepare the Digital Controller (Single Input \u2013 Single Output) by selecting the sensor node, the actuator node, their components, a value for the gain, and the selection of one or multiple building blocks.&nbsp; If multiple building blocks are selected, the corresponding transfer functions are multiplied.<\/p>\n\n\n\n<p>Simcenter 3D modeling capabilities for rotors, such as 2D Fourier model or super-elements, can be used with the new digital controllers.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"264\" src=\"https:\/\/blogs.sw.siemens.com\/wp-content\/uploads\/sites\/6\/2025\/12\/Prepare-the-model-and-the-digital-controllers-1024x264.png\" alt=\"\" class=\"wp-image-70945\" srcset=\"https:\/\/blogs.sw.siemens.com\/wp-content\/uploads\/sites\/6\/2025\/12\/Prepare-the-model-and-the-digital-controllers-1024x264.png 1024w, https:\/\/blogs.sw.siemens.com\/wp-content\/uploads\/sites\/6\/2025\/12\/Prepare-the-model-and-the-digital-controllers-600x154.png 600w, https:\/\/blogs.sw.siemens.com\/wp-content\/uploads\/sites\/6\/2025\/12\/Prepare-the-model-and-the-digital-controllers-768x198.png 768w, https:\/\/blogs.sw.siemens.com\/wp-content\/uploads\/sites\/6\/2025\/12\/Prepare-the-model-and-the-digital-controllers-1536x395.png 1536w, https:\/\/blogs.sw.siemens.com\/wp-content\/uploads\/sites\/6\/2025\/12\/Prepare-the-model-and-the-digital-controllers-2048x527.png 2048w, https:\/\/blogs.sw.siemens.com\/wp-content\/uploads\/sites\/6\/2025\/12\/Prepare-the-model-and-the-digital-controllers-900x232.png 900w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p><strong>Step 3: Simulation with a SOL 414 analysis<\/strong><\/p>\n\n\n\n<p>Active Magnetic bearings are enabled for complex modal analysis or for forced response in the frequency domain.&nbsp; Their effects can then be seen on a Campbell diagram or response functions of the system under synchronous or asynchronous loads.<\/p>\n\n\n\n<figure class=\"wp-block-video\"><video controls src=\"https:\/\/videos.mentor-cdn.com\/mgc\/videos\/5400\/23b663df-0354-437f-88d5-f6065afa9e32-en-US-video.mp4\"><\/video><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Related blogs on rotor dynamics<\/h2>\n\n\n\n<p>Did you enjoy reading this blog and want to know more? You may also like the following blog posts:<\/p>\n\n\n\n<p><a href=\"https:\/\/blogs.sw.siemens.com\/simcenter\/rotating-systems-tuning-your-intuition\/\" target=\"_blank\" rel=\"noreferrer noopener\">Rotating systems \u2013 tune your intuition<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/blogs.sw.siemens.com\/simcenter\/efficient-rotor-dynamics-for-multi-stage-turbomachinery\/\" target=\"_blank\" rel=\"noreferrer noopener\">Efficient rotor dynamics for multi-stage turbo machinery<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/blogs.sw.siemens.com\/simcenter\/containing-aircraft-engine-failure\/\">Containing aircraft engine failure<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/blogs.sw.siemens.com\/simcenter\/combine-solution-speed-and-accuracy-for-axisymmetric-rotor-dynamics\/\" target=\"_blank\" rel=\"noreferrer noopener\">Combine solution speed and accuracy for axisymmetric rotor dynamics<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/blogs.sw.siemens.com\/simcenter\/bearing-modeling-makes-or-breaks-rotor-dynamics-simulations\/?preview_id=28830&amp;_thumbnail_id=28848\" target=\"_blank\" rel=\"noreferrer noopener\">Bearing modeling makes or breaks rotor dynamics simulation<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/blogs.sw.siemens.com\/simcenter\/multi-stage-cyclic-symmetry-in-rotor-dynamics\/\" target=\"_blank\" rel=\"noreferrer noopener\">Multi stage cyclic symmetry in rotor dynamics<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/blogs.sw.siemens.com\/simcenter\/advances-in-resonance-and-cyclic-symmetry-of-bladed-rotor-assemblies-simcenter-3d-2306\/\" target=\"_blank\" rel=\"noreferrer noopener\">Advances in resonance and cyclic symmetry of bladed rotor assemblies<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/blogs.sw.siemens.com\/simcenter\/identify-the-peaks-of-harmonic-response-during-operation-of-nonlinear-rotor-dynamics\/\" target=\"_blank\" rel=\"noreferrer noopener\">Identify the peaks of harmonic response during operation of nonlinear rotor dynamics<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/blogs.sw.siemens.com\/simcenter\/smooth-vibrations-in-rotating-systems-how-to-monitor-clearance-consumption\/\" target=\"_blank\" rel=\"noreferrer noopener\">Smooth vibrations in rotating systems \u2013 How to monitor clearance consumption<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/blogs.sw.siemens.com\/simcenter\/vibrations-in-rotating-systems-when-defects-and-harsh-conditions-break-the-symmetry-of-rotating-systems\" target=\"_blank\" rel=\"noreferrer noopener\">Vibrations in-rotating-systems-when-defects-and-harsh-conditions-break-the-symmetry-of-rotating-systems<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/blogs.sw.siemens.com\/simcenter\/say-your-prayers-or-get-a-rotor-dynamics-simulation-engineer-how-simulation-ensures-engines-can-survive-vibrations\/\" target=\"_blank\" rel=\"noreferrer noopener\">Say-your-prayers-or-get-a-rotor-dynamics-simulation-engineer-how-simulation-ensures-engines-can-survive-vibrations<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/blogs.sw.siemens.com\/simcenter\/turbomachine-assemblies-and-the-challenges-of-designing-them-whats-new-in-simcenter-3d-for-rotor-dynamics-2506\/\">Turbomachine assemblies and the challenges of designing them<\/a><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Introduction Using Active Magnetic bearings in turbomachines has many benefits. High-speed turbocompressors, pumps, and turbines utilise them to reduce friction&#8230;<\/p>\n","protected":false},"author":19650,"featured_media":70951,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spanish_translation":"","french_translation":"","german_translation":"","italian_translation":"","polish_translation":"","japanese_translation":"","chinese_translation":"","footnotes":""},"categories":[1,179],"tags":[5,63605,17763,18629],"industry":[153,125,129,126,150,152,154],"product":[577,34323],"coauthors":[1899],"class_list":["post-70942","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","category-product-updates","tag-cae-simulation","tag-rotor-dynamics","tag-simcenter-3d","tag-simcenter-mechanical","industry-aec","industry-aerospace-defense","industry-aerospace-defense-agencies","industry-aircraft-engines","industry-energy-utilities","industry-epc","industry-equipment-manufacturer","product-simcenter-3d","product-simcenter-3d-solutions"],"featured_image_url":"https:\/\/blogs.sw.siemens.com\/wp-content\/uploads\/sites\/6\/2025\/12\/2512ActiveMagneticBearings.svg","_links":{"self":[{"href":"https:\/\/blogs.sw.siemens.com\/simcenter\/wp-json\/wp\/v2\/posts\/70942","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.sw.siemens.com\/simcenter\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.sw.siemens.com\/simcenter\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/simcenter\/wp-json\/wp\/v2\/users\/19650"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/simcenter\/wp-json\/wp\/v2\/comments?post=70942"}],"version-history":[{"count":5,"href":"https:\/\/blogs.sw.siemens.com\/simcenter\/wp-json\/wp\/v2\/posts\/70942\/revisions"}],"predecessor-version":[{"id":72043,"href":"https:\/\/blogs.sw.siemens.com\/simcenter\/wp-json\/wp\/v2\/posts\/70942\/revisions\/72043"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/simcenter\/wp-json\/wp\/v2\/media\/70951"}],"wp:attachment":[{"href":"https:\/\/blogs.sw.siemens.com\/simcenter\/wp-json\/wp\/v2\/media?parent=70942"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/simcenter\/wp-json\/wp\/v2\/categories?post=70942"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/simcenter\/wp-json\/wp\/v2\/tags?post=70942"},{"taxonomy":"industry","embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/simcenter\/wp-json\/wp\/v2\/industry?post=70942"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/simcenter\/wp-json\/wp\/v2\/product?post=70942"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/simcenter\/wp-json\/wp\/v2\/coauthors?post=70942"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}