Generation and Evolution Conditions of Polygonal Wear of High-Speed Wheel

Wheel polygonal wear has long been a problem that confused the safety of railway operation which has important theoretical value and research significance. In this paper, the conditions of polygonal wear of high-speed wheel are analyzed based on the wear model and verified by the field measured data...

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Autores principales:	Yahong Dong, Shuqian Cao
Formato:	article
Lenguaje:	EN
Publicado:	Hindawi Limited 2021
Materias:	Physics QC1-999
Acceso en línea:	https://doaj.org/article/3b59203b51374db6bd79f232ab7d8c8d
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id	oai:doaj.org-article:3b59203b51374db6bd79f232ab7d8c8d
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spelling	oai:doaj.org-article:3b59203b51374db6bd79f232ab7d8c8d2021-11-29T00:56:55ZGeneration and Evolution Conditions of Polygonal Wear of High-Speed Wheel1875-920310.1155/2021/6793351https://doaj.org/article/3b59203b51374db6bd79f232ab7d8c8d2021-01-01T00:00:00Zhttp://dx.doi.org/10.1155/2021/6793351https://doaj.org/toc/1875-9203Wheel polygonal wear has long been a problem that confused the safety of railway operation which has important theoretical value and research significance. In this paper, the conditions of polygonal wear of high-speed wheel are analyzed based on the wear model and verified by the field measured data. Considering the wheel track interaction caused by rotation, a finite element model of wheelset rotor dynamics is established. The effects of rotor speed, mass eccentricity, wheelset, and track flexibility on the vibration characteristics of wheelset rotor system and wheel polygonal wear characteristics are analyzed by beam element and solid element, respectively. The results show that the wheel longitudinal vibration is the main reason of wheel polygonal wear, and the wheel polygonal wear follows the law of “constant frequency and divisible.” Its “constant frequency” comes from the wheel track contact vibration, which stimulates the third-order vertical bending vibration of wheelset and the eighth-order coupled bending vibration of track, and the order is equal to the ratio of “constant frequency” to the wheelset rotation frequency.Yahong DongShuqian CaoHindawi LimitedarticlePhysicsQC1-999ENShock and Vibration, Vol 2021 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999
spellingShingle	Physics QC1-999 Yahong Dong Shuqian Cao Generation and Evolution Conditions of Polygonal Wear of High-Speed Wheel
description	Wheel polygonal wear has long been a problem that confused the safety of railway operation which has important theoretical value and research significance. In this paper, the conditions of polygonal wear of high-speed wheel are analyzed based on the wear model and verified by the field measured data. Considering the wheel track interaction caused by rotation, a finite element model of wheelset rotor dynamics is established. The effects of rotor speed, mass eccentricity, wheelset, and track flexibility on the vibration characteristics of wheelset rotor system and wheel polygonal wear characteristics are analyzed by beam element and solid element, respectively. The results show that the wheel longitudinal vibration is the main reason of wheel polygonal wear, and the wheel polygonal wear follows the law of “constant frequency and divisible.” Its “constant frequency” comes from the wheel track contact vibration, which stimulates the third-order vertical bending vibration of wheelset and the eighth-order coupled bending vibration of track, and the order is equal to the ratio of “constant frequency” to the wheelset rotation frequency.
format	article
author	Yahong Dong Shuqian Cao
author_facet	Yahong Dong Shuqian Cao
author_sort	Yahong Dong
title	Generation and Evolution Conditions of Polygonal Wear of High-Speed Wheel
title_short	Generation and Evolution Conditions of Polygonal Wear of High-Speed Wheel
title_full	Generation and Evolution Conditions of Polygonal Wear of High-Speed Wheel
title_fullStr	Generation and Evolution Conditions of Polygonal Wear of High-Speed Wheel
title_full_unstemmed	Generation and Evolution Conditions of Polygonal Wear of High-Speed Wheel
title_sort	generation and evolution conditions of polygonal wear of high-speed wheel
publisher	Hindawi Limited
publishDate	2021
url	https://doaj.org/article/3b59203b51374db6bd79f232ab7d8c8d
work_keys_str_mv	AT yahongdong generationandevolutionconditionsofpolygonalwearofhighspeedwheel AT shuqiancao generationandevolutionconditionsofpolygonalwearofhighspeedwheel
_version_	1718407637680259072

Generation and Evolution Conditions of Polygonal Wear of High-Speed Wheel

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