Study on the Influence of Dynamic Performance of Rail Pad on the Vibration Characteristics of E-type Fastener Clip

Study on the Influence of Dynamic Performance of Rail Pad on the Vibration Characteristics of E-type Fastener Clip | 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 Study on the Influence of Dynamic Performance of Rail Pad on the Vibration Characteristics of E-type Fastener Clip Zhixuan Wang, Zhenxing He, Weixing Liu, Tianci Xu, Chang Xu, Yanbo Bai, and 1 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-5732445/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 The issue of E-type fastener clip fracture due to high-frequency vibration has attracted widespread attention, with research focusing on the mechanisms leading to such failures. The rail pad, crucial to the fastener system for elastic vibration damping elastic vibration damping, exhibits significant variations in dynamic performance depending on the material and structure. Currently, there is a lack of studies on how the dynamic performance of the rail pad affects E-type fastener clip vibrations and fractures. To address this, the tests for the dynamic stiffness of rail pads under constant frequency and variable temperature conditions have been conducted using a universal testing machine fitted with a temperature control box, revealing its wide-band dynamic characteristics. These characteristics were represented using the Prony series. A detailed finite element model of the fastener system was developed, incorporating the nonlinear contact relationships among the components and the dynamic performance of rail pads. Frequency response analysis was performed to compare the dynamic steady-state responses of fastener systems with different rail pads. Finally, drop shaft impact tests were simulated to evaluate the vibration acceleration response of E-type fastener clip with various rail pads. The results indicate that the dynamic performance of rail pad significantly affects the vibration characteristics of E-type clips. Among the three rail pads with identical stiffness, the new mesh-type rail pad (NMTRP) demonstrated the best damping energy absorption capability, effectively reducing the vibration acceleration of the E-type Fastener clip. Urban rail transit Fastener clip Rail pad Dynamic performance Finite element analysis Full Text Additional Declarations No competing interests reported. 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. 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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-5732445","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":396182047,"identity":"ad1c6097-8f1a-4a6a-bdb5-33e50e6e733f","order_by":0,"name":"Zhixuan Wang","email":"","orcid":"","institution":"Southwest Jiaotong University","correspondingAuthor":false,"prefix":"","firstName":"Zhixuan","middleName":"","lastName":"Wang","suffix":""},{"id":396182048,"identity":"0cfe6919-d1ef-4c89-bf53-9670c35bc6eb","order_by":1,"name":"Zhenxing He","email":"","orcid":"","institution":"Lanzhou Jiaotong 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The rail pad, crucial to the fastener system for elastic vibration damping elastic vibration damping, exhibits significant variations in dynamic performance depending on the material and structure. Currently, there is a lack of studies on how the dynamic performance of the rail pad affects E-type fastener clip vibrations and fractures. To address this, the tests for the dynamic stiffness of rail pads under constant frequency and variable temperature conditions have been conducted using a universal testing machine fitted with a temperature control box, revealing its wide-band dynamic characteristics. These characteristics were represented using the Prony series. A detailed finite element model of the fastener system was developed, incorporating the nonlinear contact relationships among the components and the dynamic performance of rail pads. Frequency response analysis was performed to compare the dynamic steady-state responses of fastener systems with different rail pads. Finally, drop shaft impact tests were simulated to evaluate the vibration acceleration response of E-type fastener clip with various rail pads. The results indicate that the dynamic performance of rail pad significantly affects the vibration characteristics of E-type clips. Among the three rail pads with identical stiffness, the new mesh-type rail pad (NMTRP) demonstrated the best damping energy absorption capability, effectively reducing the vibration acceleration of the E-type Fastener clip.","manuscriptTitle":"Study on the Influence of Dynamic Performance of Rail Pad on the Vibration Characteristics of E-type Fastener Clip","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2025-01-02 02:21:08","doi":"10.21203/rs.3.rs-5732445/v1","editorialEvents":[{"type":"communityComments","content":0}],"status":"published","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}}],"origin":"","ownerIdentity":"3998ce63-4537-4845-bd4e-e7b366fd2891","owner":[],"postedDate":"January 2nd, 2025","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"posted","subjectAreas":[],"tags":[],"updatedAt":"2025-01-07T09:24:03+00:00","versionOfRecord":[],"versionCreatedAt":"2025-01-02 02:21:08","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-5732445","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-5732445","identity":"rs-5732445","version":["v1"]},"buildId":"8U1c8b4HqxoKbykW_rLl7","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}