| 岳川元,杨诚,张军,杨朝,沈蜜.某前驱车轮端起步粘滑异响分析与控制[J].声学技术,2019,38(4):446~451 |
| 某前驱车轮端起步粘滑异响分析与控制 |
| Analysis and control of the starting stick-slip noise at vehicle front wheel end |
| 投稿时间：2019-01-15 修订日期：2019-02-21 |
| DOI：10.16300/j.cnki.1000-3630.2019.04.015 |
| 中文关键词: 驱动半轴 轮毂轴承 摩擦学 粘滑摩擦 |
| 英文关键词: driving half-shaft wheel hub bearing tribology stick-slip friction |
| 基金项目: |
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| 摘要点击次数: 875 |
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| 中文摘要: |
| 某前驱车型在起步过程中驱动轮端出现"咔哒"异响，问题发生频次较高，严重影响整车品质。对异响现象进行分析最终确定是轮毂轴承与驱动半轴接触端面粘滑振动引起，在粘滑过程中接触端面由静摩擦向滑动摩擦转变时接触面间摩擦系数突变产生轴向冲击力诱发异响。通过建立合理的物理模型，分析粘滑运动过程中相关的正压力、滑动摩擦系数、静摩擦系数等参数的影响，利用一种特制减摩垫圈，进而改变传动零部件接触端面的动态摩擦特性，有效解决了该车型驱动轮端起步异响的问题。目前，国内外针对车辆传动系统中粘滑摩擦的研究较少。该研究对新车型传动设计过程中类似的粘滑异响处理有积极的借鉴和参考意义。 |
| 英文摘要: |
| In the starting process of a certain front-engine front-drive vehicle, the "click" sound appears and the high occurrence rate of this trouble seriously affects the quality of whole vehicle. Through the investigation and analysis, it is clarified that the phenomenon of abnormal noise is caused by the stick-slip vibration of the contact end face between the wheel-hub bearing and the driving half-shaft. In the stick-slip process, the friction type of the contact end face transfers from static friction to dynamic friction and the axial impact introduced by the changes of friction coefficient generates abnormal noise. A simplified physical model is established, the influences of dynamic and static friction coefficients, positive pressure and contact area on stick-slip motion are analyzed. A special anti-friction washer is added to the contact interface to minimize the change of friction force during the transfer from static friction to dynamic friction, so that the trouble of starting "click" noise is eventually solved. At present, there are few researches on stick-slip friction in vehicle transmission system. The research in this paper has reference significance for the similar stick-slip abnormal noise treatment in the design process of the new vehicle transmission. |
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