Complex Eigenvalue Analysis for Reducing Low Frequency Brake Squeal 2000-01-0444
A front disc brake system is used as an example for an investigation of low frequency squeal. Many different modifications to this disc brake system have been proposed and this paper focuses on a solution that reduces the stiffness of the rotor. This is accomplished by a reduction in the Young's modulus of the rotor material. The complex eigenvalue method is used for a detailed analytical study in order to obtain a better understanding of this solution technique. Modal participation factors are calculated to examine the modal coupling mechanism. Parametric studies are also performed to find out the effects of friction coefficient and rotor stiffness. Results show that shifting rotor resonance frequencies may ecouple the modal interaction and eliminate dynamic instability, which is in agreement with experimental results.
Citation: Kung, S., Dunlap, K., and Ballinger, R., "Complex Eigenvalue Analysis for Reducing Low Frequency Brake Squeal," SAE Technical Paper 2000-01-0444, 2000, https://doi.org/10.4271/2000-01-0444. Download Citation
Author(s):
Shih-Wei Kung, K. Brent Dunlap, Robert S. Ballinger
Affiliated:
Delphi Automotive Systems
Pages: 9
Event:
SAE 2000 World Congress
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Brake Technology: ABS/TCS Systems, NVH, and Foundation Brakes-SP-1537, SAE 2000 Transactions Journal of Passenger Cars - Mechanical Systems-V109-6
Related Topics:
Disc brakes
Braking systems
Propellers and rotors
Noise
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