Scipediacontent: Scipediacontent moved page Draft Content 819851124 to Yanliang et al 2020a

2021-02-15T11:19:47Z

Scipediacontent moved page Draft Content 819851124 to Yanliang et al 2020a

Scipediacontent: Created page with " == Abstract == The increasing need for repairs of polygonized wheels on high-speed railways in China is becoming problematic. At high speeds, polygonized wheels cause abnorm..."

2021-02-15T11:19:43Z

Created page with " == Abstract == The increasing need for repairs of polygonized wheels on high-speed railways in China is becoming problematic. At high speeds, polygonized wheels cause abnorm..."

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== Abstract ==

The increasing need for repairs of polygonized wheels on high-speed railways in China is becoming problematic. At high speeds, polygonized wheels cause abnormal vibrations at the wheel-rail interface that can be detected via axle-box accelerations. To investigate the quantitative relationship between axle-box acceleration and wheel polygonization in both the time and frequency domains and under high-speed conditions, a dynamics model was developed to simulate the vehicle-track coupling system and that considers both wheel and track flexibility. The calculated axle-box accelerations were analyzed by using the improved ensemble empirical mode decomposition and Wigner-Ville distribution time-frequency method. The numerical results show that the maximum axle-box accelerations and their frequencies are quantitatively related to the harmonic order and out-of-roundness amplitude of polygonized wheels. In addition, measuring the axle-box acceleration enables both the detection of wheel polygonization and the identification of the degree of damage.

Document type: Article

== Full document ==
<pdf>Media:Draft_Content_819851124-beopen957-4796-document.pdf</pdf>

== Original document ==

The different versions of the original document can be found in:

* [http://dx.doi.org/10.3390/app10051613 http://dx.doi.org/10.3390/app10051613] under the license https://creativecommons.org/licenses/by

* [https://www.mdpi.com/2076-3417/10/5/1613/pdf https://www.mdpi.com/2076-3417/10/5/1613/pdf] under the license http://creativecommons.org/licenses/by/3.0/

* [https://www.mdpi.com/2076-3417/10/5/1613 https://www.mdpi.com/2076-3417/10/5/1613],
: [https://doaj.org/toc/2076-3417 https://doaj.org/toc/2076-3417] under the license cc-by

* [https://www.mdpi.com/2076-3417/10/5/1613/pdf https://www.mdpi.com/2076-3417/10/5/1613/pdf],
: [http://dx.doi.org/10.3390/app10051613 http://dx.doi.org/10.3390/app10051613]

* [https://www.mdpi.com/2076-3417/10/5/1613/pdf https://www.mdpi.com/2076-3417/10/5/1613/pdf],
: [https://academic.microsoft.com/#/detail/3010419881 https://academic.microsoft.com/#/detail/3010419881] under the license https://creativecommons.org/licenses/by/4.0/

← Older revision	Revision as of 11:19, 15 February 2021
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Yanliang et al 2020a - Revision history

Scipediacontent: Scipediacontent moved page Draft Content 819851124 to Yanliang et al 2020a

Scipediacontent: Created page with " == Abstract == The increasing need for repairs of polygonized wheels on high-speed railways in China is becoming problematic. At high speeds, polygonized wheels cause abnorm..."