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论文:2022,Vol:40,Issue(3):549-559 |
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引用本文： |
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肖立, 徐颖强, 陈智勇, 孙谢文, 徐颢. 浮动渐开线花键微动损伤及磨损疲劳预测[J]. 西北工业大学学报 |
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XIAO Li, XU Yingqiang, CHEN Zhiyong, SUN Xiewen, XU Hao. Prediction of fretting damage and wear fatigue of floating involute spline couplings[J]. Northwestern polytechnical university |
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| 浮动渐开线花键微动损伤及磨损疲劳预测 |
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| 肖立, 徐颖强, 陈智勇, 孙谢文, 徐颢 |
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| 西北工业大学 机电学院, 陕西 西安 710072 |
| 摘要: |
| 通过建立浮动花键副有限元模型,分析了轴线不对中和角向偏心对花键齿面接触压力的分布影响,基于Ruiz微动损伤参数评估了轴线不对中和角向偏心对齿面微动损伤的影响,结合能量耗散模型和临界面SWT模型,建立了考虑磨损效应的浮动花键磨损疲劳损伤模型,分析了轴线不对中和角向偏心下齿面的微动疲劳累积损伤分布规律,并预测了浮动花键寿命。结果表明,轴线不对中使各齿面接触分布不均,最危险齿面沿x方向RFFDP值呈现"抛物线"状,即在齿面两端产生较为严重的微动损伤,且齿面裂纹萌生位置在x/L=0处附近。角向偏心使齿面仅在一端边缘接触,最危险齿面RFFDP值均沿x方向增大,呈现"指数增长"趋势,在x/L=1处达到最大,且裂纹萌生位置发生在x/L=1处附近。同时,随着轴线不对中或角向偏心量的增大,齿面损伤现象更为明显,磨损疲劳寿命急剧下降。 |
| 关键词:
浮动渐开线花键
微动磨损
疲劳
Ruiz损伤参数
接触压力
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| Prediction of fretting damage and wear fatigue of floating involute spline couplings |
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| XIAO Li, XU Yingqiang, CHEN Zhiyong, SUN Xiewen, XU Hao |
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| School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an 710072, China |
| Abstract: |
| In this paper, a finite element model of the floating spline pair is first established, and the distribution of the contact pressure on the tooth surface of the spline with the axis and angular misalignment is analyzed. Then, the effects of axial misalignment and angular eccentricity on tooth fretting damage were evaluated, based on Ruiz fretting damage parameters. Finally, a floating spline wear fatigue damage model considering the wear effect is established based on the energy dissipation and critical plane SWT model, and the fretting fatigue cumulative damage distribution and life of the tooth surface under axial and angular misalignment are analyzed and evaluated. The results show that the misalignment of the axis makes the contact pressure distribution of each tooth uneven, and the RFFDP value of the most dangerous tooth is parabolic along the x direction, that is, serious fretting damage may occur at both ends of the tooth surface, and the crack initiation position on the tooth occurs near x/L=0. The angular misalignment makes the tooth contact only at one end edge, and the RFFDP value of the most dangerous tooth increases along the x direction, showing an exponential growth trend, reaching the maximum at x/L=1, and the crack initiation position occurs at near x/L=1. With the increase of axis or angular misalignment, the damage phenomenon of the floating spline tooth surface becomes more obvious, and the wear-fatigue life decreases sharply. |
| Key words:
floating involute spline
fretting damage
Ruiz damage parameters
SWT
contact pressure
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| 收稿日期: 2021-07-18
修回日期:
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| DOI: 10.1051/jnwpu/20224030549 |
| 基金项目: 国家自然科学基金面上项目(51675427)与河南省科技攻关项目(212102210284,212102210588)资助 |
| 通讯作者: 徐颖强(1961—),西北工业大学教授,主要从事航空动力传动及摩擦学研究。e-mail:xuyngqng@nwpu.edu.cn
Email：xuyngqng@nwpu.edu.cn |
| 作者简介: 肖立(1998—),西北工业大学博士研究生,主要从事航空传动件摩擦磨损研究。
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| 作者相关文章 |
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| 肖立 在本刊中的所有文章 |
| 徐颖强 在本刊中的所有文章 |
| 陈智勇 在本刊中的所有文章 |
| 孙谢文 在本刊中的所有文章 |
| 徐颢 在本刊中的所有文章 |
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