Effect of pad shapes on high-frequency disc brake squeal

2016 ◽  
Vol 72 (4) ◽  
pp. 354 ◽  
Author(s):  
Dihua Guan ◽  
Yongchang Du ◽  
Xiaofeng Wang
Keyword(s):  
High Frequency ◽  
Disc Brake ◽  
Brake Squeal

Effect of pad shapes on high-frequency disc brake squeal

2016 ◽  
Vol 72 (4) ◽  
pp. 354
Author(s):  
Yongchang Du ◽  
Dihua Guan ◽  
Xiaofeng Wang
Keyword(s):  
High Frequency ◽  
Disc Brake ◽  
Brake Squeal

Piezoelectric-based dither control for automobile brake squeal suppression under various braking conditions

2020 ◽  
pp. 107754632095676
Author(s):  
HweeKwon Jung ◽  
Gyuhae Park ◽  
Jeong Kyu Kim
Keyword(s):  
Automotive Industry ◽  
High Frequency ◽  
Experimental Investigations ◽  
Disc Brake ◽  
Nonlinear Friction ◽  
Frequency Range ◽  
Brake Squeal ◽  
Squeal Noise ◽  
Piezoelectric Stack Actuator ◽  
Friction Induced Vibration

Automobile brake squeal noise, which is nonlinear, friction-induced vibration in the frequency range 1–16 kHz, still remains a major problem for the automotive industry. This article presents analytical and experimental investigations into the application of dither control for active suppression of automobile disc brake squeal. Dither is a concept of active control that introduces high-frequency actuation into a system to suppress a much lower frequency disturbance. In this study, a specially designed brake system is built, in which a piezoelectric stack actuator in the piston of a floating caliper brake applies the dither input. In the experiments, squeal noise generated under the drag mode and various dynamic modes are considered. The results indicate that this piezoelectric-based dither control could effectively suppress the brake squeal noise by 5–10 dB and the squeal occurrence by up to 60% under various braking conditions.

A Study of Low-Frequency and High-Frequency Disc Brake Squeal

2016 ◽  
Vol 9 (3) ◽  
pp. 1235-1244 ◽  
Author(s):  
Seongjoo Lee ◽  
JeSung Jeon ◽  
ShinWook Kim ◽  
ShinWan Kim ◽  
Seong Rhee ◽  
...  
Keyword(s):  
High Frequency ◽  
Low Frequency ◽  
Disc Brake ◽  
Brake Squeal

Model Predict Vibration and Noise of Disc Brake

2012 ◽  
Vol 232 ◽  
pp. 461-464
Author(s):  
Le Hong Thai Huynh ◽  
Aleš Dittrich ◽  
Ondřej Dráb
Keyword(s):  
Automotive Industry ◽  
Degrees Of Freedom ◽  
Disc Brake ◽  
Brake Squeal

The problem brake squeal is one of the important areas of application in the automotive industry. Most brake squeal is produced by vibration (resonance instability) of the brake components, especially the pads and discs are known as force-coupled excitation. Until now have many research about predict vibration and noise of disc brake but unfortunate the results is not satisfied. This paper presents model for prediction stability of disc brake for a model four degrees of freedom. The result shows stability of system and when occurrence brake squeal.

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