Abstract The effects of the macroscopic surface morphology caused by the uneven wear on friction induced vibration were investigated. The experimental results showed the uneven wear in the sliding direction produced the contact plateaus with large theoretical contact lengths at the leading edge and increased the unstable vibrations. A numerical analysis of the contact pressure distribution in different macroscopic surface morphology indicated variation of contact pressure deteriorated the wear status, thus increased the tendency of unstable vibration. And the stability of the friction system decreased with the changes in the macroscopic surface morphology. The lumped parameter model proved the uneven wear in the sliding direction would decrease the stability of the system and increase the coupling of tangential and normal vibration.

中文翻译：

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不均匀磨损引起的宏观表面形貌对摩擦致振动的影响

摘要 研究了由不均匀磨损引起的宏观表面形貌对摩擦致振动的影响。实验结果表明，滑动方向的不均匀磨损在前缘产生了具有较大理论接触长度的接触平台，并增加了不稳定的振动。对不同宏观表面形貌下接触压力分布的数值分析表明，接触压力的变化使磨损状态恶化，从而增加了不稳定振动的趋势。并且摩擦系统的稳定性随着宏观表面形貌的变化而降低。集中参数模型证明了滑动方向的不均匀磨损会降低系统的稳定性，增加切向振动和法向振动的耦合。