锤击脉冲力对摩擦尖叫噪声的激励作用

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振动与冲击 ›› 2013, Vol. 32 ›› Issue (1) : 21-24.

论文

锤击脉冲力对摩擦尖叫噪声的激励作用

金城，李刚，陈光雄，周仲荣

作者信息 +

Exciting effect of hammer pulse forces on friction squeal noise

JIN CHENG LI GANG CHEN GUANGXIONG ZHOU ZHONGRONG

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文章历史 +

摘要

大量的试验发现对摩擦系统施加的锤击脉冲力能够激励出摩擦尖叫噪声。对这种由锤击脉冲力激励出的摩擦尖叫噪声进行时频分析，发现它与摩擦系统自激产生的摩擦尖叫噪声具有相同的时频特性。为了找到锤击脉冲力激励出摩擦尖叫噪声的原因，进行了更深入的试验研究，结果表明摩擦尖叫噪声与磨屑有十分密切的关系，同时发现锤击脉冲力会使摩擦系统产生更多磨屑，大量磨屑的突然产生可能是导致锤击脉冲力激励出摩擦尖叫噪声的原因。

Abstract

A series of experimental tests are carried out to study the effect of hammer pulse forces on friction squealing noise in this paper. The result shows that a hammer pulse force applied on friction system can lead to friction squeal noise. A time-frequency analysis of this kind of hammer-excited friction squeal noise is performed. The analysis result clearly demonstrates that the hammer-excited friction squeal noise and the self-excited friction squeal noise have the same time-frequency characteristics. Further test research is performed for understanding the origin of hammer-excited squeal noise. The test result shows that there is a very close relationship between the debris and friction squeal noise. It is found that the hammer pulse force applied on friction system can cause more debris. Thus, the hammer-excited squeal noise formation is attributed to the effect of a large amount of debris generated in a very short time.

导出引用

金城;李刚;陈光雄;周仲荣. 锤击脉冲力对摩擦尖叫噪声的激励作用[J]. 振动与冲击, 2013, 32(1): 21-24

JIN CHENG LI GANG CHEN GUANGXIONG ZHOU ZHONGRONG. Exciting effect of hammer pulse forces on friction squeal noise[J]. Journal of Vibration and Shock, 2013, 32(1): 21-24