Fatigue Performance Research of Low-to-Medium Speed Maglev Train--Track--Bridge Coupled System

Fatigue Performance Research of Low-to-Medium Speed Maglev Train--Track--Bridge Coupled System | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); Skip to main content Preprints Collections Wiley Open Research IET Open Research Ecological Society of Japan All Collections About About Authorea FAQs Contact Us Quick Search anywhere Search for preprint articles, keywords, etc. Search Search ADVANCED SEARCH SCROLL This is a preprint and has not been peer reviewed. Data may be preliminary. 10 July 2025 V1 Latest version Share on Fatigue Performance Research of Low-to-Medium Speed Maglev Train--Track--Bridge Coupled System Authors : Yilong He , Hao Luo [email protected] , Chuyi Xu , Mougang Liu , and Hui Guo Authors Info & Affiliations https://doi.org/10.22541/au.175213106.62226470/v1 199 views 106 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract Maglev transportation has emerged as a new option for long-distance travel between cities with the rapid development of transportation infrastructure. The fatigue issues of the maglev train-track-bridge coupling system, induced by increased train speeds, have garnered considerable attention. This study focuses on the continuous girder bridge of low-to-medium speed maglev dedicated lines. A multi-vehicle coupling model and a refined vehicle-track-bridge system were constructed based on the maglev equivalent stiffness-damping theory. Dynamic stress is solved using the modal superposition method, and fatigue performance under multiple working conditions is evaluated based on the rainflow counting method, and Miner’s linear damage theory. Key findings include: Dynamic stress peaks in the track structure 29.4 MPa at high-strength bolts and 20.1 MPa at bridge fasteners significantly exceed those in the bridge, identifying these as fatigue-sensitive zones; During a single train passage, the stress amplitudes are mainly concentrated in the low-stress amplitude range, yet annual accumulated damage at critical node track tie and bridge fastener junction reaches 4.99E-4; Increasing train speed to 160 km/h amplifies total damage at track tie and bridge fastener junction by 365%, with nonlinear growth in fastener damage. This research provides theoretical insights for optimizing speed-up strategies and maintenance protocols in low-to-medium-speed maglev systems. Supplementary Material File (manuscript.doc) Download 4.15 MB Information & Authors Information Version history V1 Version 1 10 July 2025 Copyright This work is licensed under a Non Exclusive No Reuse License. Keywords cumulative fatigue damage damage fatigue finite element simulation Authors Affiliations Yilong He Xiangtan University School of Civil Engineering View all articles by this author Hao Luo [email protected] Xiangtan University School of Civil Engineering View all articles by this author Chuyi Xu Xiangtan University School of Civil Engineering View all articles by this author Mougang Liu Xiangtan University School of Civil Engineering View all articles by this author Hui Guo China Academy of Railway Sciences Corporation Limited Railway Engineering Research Institute View all articles by this author Metrics & Citations Metrics Article Usage 199 views 106 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Yilong He, Hao Luo, Chuyi Xu, et al. Fatigue Performance Research of Low-to-Medium Speed Maglev Train--Track--Bridge Coupled System. Authorea . 10 July 2025. DOI: https://doi.org/10.22541/au.175213106.62226470/v1 If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download. For more information or tips please see 'Downloading to a citation manager' in the Help menu . Format Please select one from the list RIS (ProCite, Reference Manager) EndNote BibTex Medlars RefWorks Direct import Tips for downloading citations document.getElementById('citMgrHelpLink').addEventListener('click', function() { popupHelp(this.href); return false; }); $(".js__slcInclude").on("change", function(e){ if ($(this).val() == 'refworks') $('#direct').prop("checked", false); $('#direct').prop("disabled", ($(this).val() == 'refworks')); }); View Options View options PDF View PDF Figures Tables Media Share Share Share article link Copy Link Copied! Copying failed. 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