Vehicle Brake Moan Noise Induced by Brake Pad Taper Wear

A finite element model of disc brake is established. A complex eigenvalue analysis of the brake system is performed. The propensity of brake moan noise is evaluated on the basis of damping ratio of brake system dynamic model. By using the finite element model, effects of the brake pad taper wear on...

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Veröffentlicht in:Ji xie gong cheng xue bao 2013-05, Vol.49 (9), p.81-86
Hauptverfasser: Zhang, Guangrong, Xie, Minsong, Li, Jun, Qi, Gang, Pu, Xinyu
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container_end_page 86
container_issue 9
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container_title Ji xie gong cheng xue bao
container_volume 49
creator Zhang, Guangrong
Xie, Minsong
Li, Jun
Qi, Gang
Pu, Xinyu
description A finite element model of disc brake is established. A complex eigenvalue analysis of the brake system is performed. The propensity of brake moan noise is evaluated on the basis of damping ratio of brake system dynamic model. By using the finite element model, effects of the brake pad taper wear on brake moan noise is studied. The results show that the brake pad taper wear is a significant factor for generating the instability causing the brake moan noise. When the brake pad taper wear is greater than 0.5 mm, the value of negative damping ratio rapidly increases, and the propensity of brake moan noise is magnified greatly. While the propensity of brake moan noise has a specific relationship with the brake pressure, friction direction and friction coefficient. The simulation result is the same as test result, which provides the theory and guidance for brake moan noise control.
doi_str_mv 10.3901/JME.2013.09.081
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A complex eigenvalue analysis of the brake system is performed. The propensity of brake moan noise is evaluated on the basis of damping ratio of brake system dynamic model. By using the finite element model, effects of the brake pad taper wear on brake moan noise is studied. The results show that the brake pad taper wear is a significant factor for generating the instability causing the brake moan noise. When the brake pad taper wear is greater than 0.5 mm, the value of negative damping ratio rapidly increases, and the propensity of brake moan noise is magnified greatly. While the propensity of brake moan noise has a specific relationship with the brake pressure, friction direction and friction coefficient. 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source Alma/SFX Local Collection
subjects Brake pressing
Brakes
Damping
Friction
Mathematical analysis
Mathematical models
Noise
Wear
title Vehicle Brake Moan Noise Induced by Brake Pad Taper Wear
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