Influence of fractional-order PID-controlled secondary lateral damping suspension system on vibration of high-speed EMUs

Influence of fractional-order PID-controlled secondary lateral damping suspension system on vibration of high-speed EMUs | 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 Influence of fractional-order PID-controlled secondary lateral damping suspension system on vibration of high-speed EMUs Yayun Qi, Hua Liu, Peng Ao, Ailong Zhang This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4847920/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract With the continuous increase of the operation speed of high-speed EMUs, the abnormal lateral vibration of the carbody problem continues to emerge, and the traditional passive suspension has a poor effect on the lateral vibration suppression of the carbody. This paper first established a two-degree-of-freedom theoretical model and designed algorithms with PID (Proportion Integration Differentiation) and the fractional-order PID (fra_PID) control algorithm as the core to control the damping force of dampers. Then the SIMPACK and SIMULINK are used to establish a co-simulation model of the second lateral damper control model of high-speed EMUs. Finally, the PID control algorithm and the fra_PID control algorithm variable damping suspension system are used to control the abnormal lateral vibration of the carbody, and the lateral vibration control effect of the vehicle in the tangent track, the curved track, the first hunting instability state, and second hunting instability state are studied. The results showed that the lateral vibration of the carbody is suppressed when the vehicle used the variable damping suspension system in the normal state and the hunting state. When in the first hunting instability state, the amplitude of the lateral acceleration of the carbody is decreased by 41% with the fra_PID control algorithm. When in the second hunting instability state, the amplitude of the lateral acceleration of the carbody is decreased by 17% with the fra_PID control algorithm. The PID controllable damping suspension system can provide a reference for suppressing abnormal vibration of the high-speed EMUs. high-speed EMUs variable damping fraction-order PID hunting instability lateral vibration suppression Full Text Cite Share Download PDF Status: Posted Version 1 posted 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. 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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-4847920","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":336310315,"identity":"54d56d1c-fdf9-45d9-ba78-623e9c8b4406","order_by":0,"name":"Yayun Qi","email":"","orcid":"","institution":"Chongqing Jiaotong University","correspondingAuthor":false,"prefix":"","firstName":"Yayun","middleName":"","lastName":"Qi","suffix":""},{"id":336310316,"identity":"76786af2-7837-40ea-b4ec-770e7c68def3","order_by":1,"name":"Hua Liu","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAuUlEQVRIiWNgGAWjYHACxgMJDAcYGNgbGx9+IFYPRAvP4WZjCaK1gJFEepsADzHK+duBVjxsu5PYP/NhG4MEg52cbgMBLRJnHjAcSGx7ljjjdmLbgwKGZGOzAwS0GEgkgLQcTmy4ndhuIAFkbyNay/ybB9skeEjSsuEGI5FawH5JOHfYeOOZRGAgGxDhF2CIMT78UXZYdt7x4w8ffqiwkyOohYEhHznKDQgqB4EEolSNglEwCkbBSAYAlA5MWIlbmnYAAAAASUVORK5CYII=","orcid":"","institution":"Chongqing Jiaotong University School of Mechatronics and Vehicle Engineering","correspondingAuthor":true,"prefix":"","firstName":"Hua","middleName":"","lastName":"Liu","suffix":""},{"id":336310317,"identity":"56e14969-7832-48c3-ae71-1b9a9c7f4f02","order_by":2,"name":"Peng Ao","email":"","orcid":"","institution":"Chongqing Jiaotong University","correspondingAuthor":false,"prefix":"","firstName":"Peng","middleName":"","lastName":"Ao","suffix":""},{"id":336310318,"identity":"6f462b9f-a0ac-4f82-9480-027fc45941f0","order_by":3,"name":"Ailong Zhang","email":"","orcid":"","institution":"China Railway Major Bridge Engineering Group Co Ltd","correspondingAuthor":false,"prefix":"","firstName":"Ailong","middleName":"","lastName":"Zhang","suffix":""}],"badges":[],"createdAt":"2024-08-02 11:00:24","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-4847920/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-4847920/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":67328442,"identity":"7392dea7-4e24-4d26-92f4-93c4a221ebae","added_by":"auto","created_at":"2024-10-23 18:02:52","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":2791719,"visible":true,"origin":"","legend":"","description":"","filename":"paper.pdf","url":"https://assets-eu.researchsquare.com/files/rs-4847920/v1_covered_4fc31ffb-de06-43b9-a1eb-b63f683253c0.pdf"}],"financialInterests":"","formattedTitle":"Influence of fractional-order PID-controlled secondary lateral damping suspension system on vibration of high-speed EMUs","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":true,"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":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true},"keywords":"high-speed EMUs, variable damping, fraction-order PID, hunting instability, lateral vibration suppression","lastPublishedDoi":"10.21203/rs.3.rs-4847920/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-4847920/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"With the continuous increase of the operation speed of high-speed EMUs, the abnormal lateral vibration of the carbody problem continues to emerge, and the traditional passive suspension has a poor effect on the lateral vibration suppression of the carbody. This paper first established a two-degree-of-freedom theoretical model and designed algorithms with PID (Proportion Integration Differentiation) and the fractional-order PID (fra_PID) control algorithm as the core to control the damping force of dampers. Then the SIMPACK and SIMULINK are used to establish a co-simulation model of the second lateral damper control model of high-speed EMUs. Finally, the PID control algorithm and the fra_PID control algorithm variable damping suspension system are used to control the abnormal lateral vibration of the carbody, and the lateral vibration control effect of the vehicle in the tangent track, the curved track, the first hunting instability state, and second hunting instability state are studied. The results showed that the lateral vibration of the carbody is suppressed when the vehicle used the variable damping suspension system in the normal state and the hunting state. When in the first hunting instability state, the amplitude of the lateral acceleration of the carbody is decreased by 41% with the fra_PID control algorithm. When in the second hunting instability state, the amplitude of the lateral acceleration of the carbody is decreased by 17% with the fra_PID control algorithm. 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