Coupling analysis of mechanism fatigue wear in vibration-thermal environment

Rui Zhou, Yugang Zhang, Hongnan Li, Bifeng Song

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

The aircraft drag-parachute mechanism is key to ensuring the smooth deployment of the parachute. It is of great significance to study its damage evolution for aircraft landing safety. To simulate the time-varying damage of this mechanism under a vibration-thermal environment, a modeling method is proposed. The method considers the coupling between fatigue damage and fretting wear and introduces the local friction temperature rise on the contact surface of the study object. The influence of the two phenomena, the morphologic evolution of the contact surface with different slip types, and the problem of motion stuck are studied. The results show that, when considering the coupling influences of friction temperature increase and fatigue damage on wear, the friction force in the case of gross slip is mostly unchanged, whereas that in the case of partial slip increases significantly. In the second case, compared with the calculation of friction force that ignores the influences of both phenomena, when considering the coupling influence of friction temperature increase or fatigue damage on wear, the friction force on the contact surface increases by approximately 6.7 %. However, when considering the combined coupling influence, it increases by approximately 20 %. Therefore, omitting the combined coupling influence reduces the prediction result of mechanism stuck failure probability smaller.

源语言英语
主期刊名Proceedings - 2023 14th International Conference on Reliability, Maintainability and Safety, ICRMS 2023
编辑Liming Ren, W. Eric Wong, Hailong Cheng, Xiaopeng Li, Shu Wang, Kanglun Liu, Ruifeng Li
出版商Institute of Electrical and Electronics Engineers Inc.
1004-1011
页数8
ISBN(电子版)9798350329988
DOI
出版状态已出版 - 2023
活动14th International Conference on Reliability, Maintainability and Safety, ICRMS 2023 - Urumqi, 中国
期限: 26 8月 202329 8月 2023

出版系列

姓名Proceedings - 2023 14th International Conference on Reliability, Maintainability and Safety, ICRMS 2023

会议

会议14th International Conference on Reliability, Maintainability and Safety, ICRMS 2023
国家/地区中国
Urumqi
时期26/08/2329/08/23

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