Characteristics of the tribological wear, vibration and squeal noise of brake disc surfaces with grooves

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Journal of Vibration and Shock ›› 2018, Vol. 37 ›› Issue (1) : 236-240.

LIU Mingqian, WANG Dongwei, LI Jianxi, ZHU Zhangyang, MO Jiliang

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Abstract

An experimental study was performed to investigate the effect of grooved brake disc on the tribological behaviors and friction-induced vibration and noise characteristics. The test results show that every kind of the grooved disc samples has good potential in improving the friction and wear behaviors of the interface, and cutting 45° grooves on the disc surface can significantly reduce the friction noise. Moreover, a numerical analysis was performed to simulate the experimental process by using the finite element software ABAQUS. It is found that the grooved discs can significantly disturb the contact pressure distribution on the pad surface and consequently reduce the squeal.

Key words

groove / brake noise / friction and wear / contact pressure

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LIU Mingqian, WANG Dongwei, LI Jianxi, ZHU Zhangyang, MO Jiliang. Characteristics of the tribological wear, vibration and squeal noise of brake disc surfaces with grooves[J]. Journal of Vibration and Shock, 2018, 37(1): 236-240

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