Seismic Response Mitigation in Wind Turbine Towers Using a nonlinear Magnetic Damper

Seismic Response Mitigation in Wind Turbine Towers Using a nonlinear Magnetic Damper | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Seismic Response Mitigation in Wind Turbine Towers Using a nonlinear Magnetic Damper Reza Pourjafar This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-8886132/v1 This work is licensed under a CC BY 4.0 License Status: Under Review Version 1 posted 10 You are reading this latest preprint version Abstract Wind turbines in seismically active regions are increasingly vulnerable to earthquake-induced vibrations due to their growing height and flexibility. Effective vibration control is therefore essential to ensure structural safety and operational reliability. This study examines the performance of a novel magnetic damper in mitigating the seismic response of wind turbine towers. The tower is modeled through a three-degree-of-freedom modal representation, corresponding to the first three fore–aft mode shapes obtained from a finite element–based modal analysis. A synthetic acceleration record was then developed to represent the dynamic characteristics of five well-known earthquakes, providing a comprehensive excitation spectrum for evaluation. The damper parameters were optimized using a Bayesian optimization framework, with the root-mean-square of tower-top displacement adopted as the objective function. The optimized configuration was subsequently assessed under each individual earthquake record to evaluate its robustness. Results show that the proposed damper, together with the optimization scheme, achieves notable reductions in seismic response and maintains consistent performance across different ground motions. The findings demonstrate the effectiveness and adaptability of the magnetic damper in enhancing the seismic resilience of wind turbine structures and provide a promising direction for integrating smart damping technologies into renewable energy systems. Structural dynamics Vibration control Magnetic damper Nonlinear absorber Wind turbine tower Seismic response Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Under Review Version 1 posted Editorial decision: Revision requested 12 Mar, 2026 Reviews received at journal 24 Feb, 2026 Reviews received at journal 24 Feb, 2026 Reviewers agreed at journal 24 Feb, 2026 Reviewers agreed at journal 24 Feb, 2026 Reviewers invited by journal 24 Feb, 2026 Editor invited by journal 23 Feb, 2026 Editor assigned by journal 22 Feb, 2026 Submission checks completed at journal 20 Feb, 2026 First submitted to journal 20 Feb, 2026 You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. 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Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-8886132","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":596410551,"identity":"05288fe2-7226-475f-a29d-8f88a2dc5fa2","order_by":0,"name":"Reza Pourjafar","email":"data:image/png;base64,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","orcid":"","institution":"University of Guilan","correspondingAuthor":true,"prefix":"","firstName":"Reza","middleName":"","lastName":"Pourjafar","suffix":""}],"badges":[],"createdAt":"2026-02-15 13:08:05","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-8886132/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-8886132/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":104835310,"identity":"965720da-1777-4487-b10c-b19bc9794938","added_by":"auto","created_at":"2026-03-17 17:43:30","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":2118020,"visible":true,"origin":"","legend":"","description":"","filename":"Manuscript.pdf","url":"https://assets-eu.researchsquare.com/files/rs-8886132/v1_covered_b2dafcc9-1300-4dcb-b557-7530bcfc951d.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Seismic Response Mitigation in Wind Turbine Towers Using a nonlinear Magnetic Damper","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":false,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"discover-civil-engineering","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"","sideBox":"Learn more about [Discover Civil Engineering](https://www.springer.com/journal/44290)","snPcode":"44290","submissionUrl":"https://submission.nature.com/new-submission/44290","title":"Discover Civil Engineering","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"stoa","reportingPortfolio":"Discover Series","inReviewEnabled":true,"inReviewRevisionsEnabled":true},"keywords":"Structural dynamics, Vibration control, Magnetic damper, Nonlinear absorber, Wind turbine tower, Seismic response","lastPublishedDoi":"10.21203/rs.3.rs-8886132/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-8886132/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eWind turbines in seismically active regions are increasingly vulnerable to earthquake-induced vibrations due to their growing height and flexibility. 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