https://www.scipedia.com/wd/index.php?action=history&feed=atom&title=Chen_et_al_2018dChen et al 2018d - Revision history2026-05-14T07:31:07ZRevision history for this page on the wikiMediaWiki 1.27.0-wmf.10https://www.scipedia.com/wd/index.php?title=Chen_et_al_2018d&diff=203536&oldid=prevScipediacontent: Scipediacontent moved page Draft Content 632913582 to Chen et al 2018d2021-02-02T07:41:02Z<p>Scipediacontent moved page <a href="/public/Draft_Content_632913582" class="mw-redirect" title="Draft Content 632913582">Draft Content 632913582</a> to <a href="/public/Chen_et_al_2018d" title="Chen et al 2018d">Chen et al 2018d</a></p>
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</td></tr></table>Scipediacontenthttps://www.scipedia.com/wd/index.php?title=Chen_et_al_2018d&diff=203535&oldid=prevScipediacontent: Created page with " == Abstract == Track stiffness variation is one of the major sources of track quality deviation. To investigate track stiffness, it is common to install trackside sensors to..."2021-02-02T07:40:58Z<p>Created page with " == Abstract == Track stiffness variation is one of the major sources of track quality deviation. To investigate track stiffness, it is common to install trackside sensors to..."</p>
<p><b>New page</b></p><div><br />
== Abstract ==<br />
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Track stiffness variation is one of the major sources of track quality deviation. To investigate track stiffness, it is common to install trackside sensors to measure track answer under extern excitation. In this research, rail foot bending strain at the middle of rail seats along the track under normal train runs is recorded by strain gauge to investigate track stiffness quality. To determine track stiffness quality based on the measurement strain result, there exists two difficulties: firstly, the dynamic wheel load is time-variant and unknown; secondly, the relationship between rail seat stiffness and rail bending strain is a multi-input-multi-output function, which makes a direct analytical solution difficult.<br> The first issue is solved by introducing the concept of the strain-location curve. The second issue is solved by transferring the problem to a structural optimization problem. The commercial structure optimization software Ansys Designxplorer® is used to processing field measurement result and a good match is achieved.<br />
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== Original document ==<br />
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The different versions of the original document can be found in:<br />
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* [https://zenodo.org/record/1491616 https://zenodo.org/record/1491616] under the license http://creativecommons.org/licenses/by-nc-nd/4.0/legalcode<br />
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* [https://zenodo.org/record/1491616 https://zenodo.org/record/1491616],<br />
: [http://dx.doi.org/10.5281/zenodo.1491615 http://dx.doi.org/10.5281/zenodo.1491615] under the license http://creativecommons.org/licenses/by-nc-nd/4.0/legalcode<br />
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* [https://zenodo.org/record/1491616 https://zenodo.org/record/1491616],<br />
: [http://dx.doi.org/10.5281/zenodo.1491616 http://dx.doi.org/10.5281/zenodo.1491616] under the license http://creativecommons.org/licenses/by-nc-nd/4.0/legalcode<br />
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DOIS: 10.5281/zenodo.1491615 10.5281/zenodo.1491616</div>Scipediacontent