滑动速度与高频摩擦噪声关系的试验研究

发布时间：2018-03-11 00:29

本文选题：干摩擦　切入点：旋转式滑动　出处：《润滑与密封》2016年04期 　论文类型：期刊论文

【摘要】：为研究高频摩擦噪声的产生机制,在Plint 92摩擦磨损试验机上采用平面-平面接触的旋转滑动摩擦副系统,研究摩擦副间相对滑动速度与高频摩擦噪声的相关性,测得摩擦过程中摩擦因数的变化情况和产生的高频噪声信号及其声压值,提出基于滑动速度变化的摩擦因数和高频噪声声压值的预测方程。结果表明:滑动速度对摩擦因数和高频噪声的产生和演变有重要的影响,摩擦因数对滑动速度的变化呈现一定的阀值性,且大的摩擦因数更易产生高频噪声。对高频噪声信号进行分析,发现高频噪声具有间歇性出现的特点。摩擦因数和高频噪声声压值随滑动速度变化规律具有一致性。
[Abstract]:In order to study the mechanism of high-frequency friction noise, a plane-plane contact rotating sliding friction pair system was used in Plint 92 friction and wear tester to study the correlation between relative sliding velocity of friction pair and high frequency friction noise. The variation of friction coefficient, the high frequency noise signal and the sound pressure during friction are measured. A prediction equation of friction coefficient and sound pressure value of high frequency noise based on the variation of sliding velocity is proposed. The results show that sliding velocity has an important influence on the generation and evolution of friction coefficient and high frequency noise. The friction coefficient has a certain threshold value to the variation of sliding speed, and the high frequency noise is more easily produced when the friction coefficient is large. The high frequency noise signal is analyzed. It is found that the high frequency noise is intermittent and the friction coefficient and the sound pressure of the high frequency noise vary with the sliding velocity.
【作者单位】：上海理工大学机械工程学院;
【基金】：国家自然科学基金项目(51275126)
【分类号】：TH117.1

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