This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Brake Groan Simulation for a McPherson Strut Type Suspension
Technical Paper
2003-01-1627
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Brake groan noise and vibration occurs in a stopped vehicle by the simultaneous application of torque to the wheel and the gradual release of brake pressure. Eventually the torque load breaks the friction between pad and rotor causing slippage and energy release. If the torque load is not large enough to maintain slippage, a sustained stick-slip vibration, called groan, can occur which transmits a low frequency noise to the vehicle interior. In some cases the noise levels caused by groan can be objectionable, thus procedures for developing remedial designs are needed. To this end, a project was performed to analytically simulate groan vibration in a vehicle with a McPherson strut type suspension. The goal was to demonstrate that analytical models could be used to simulate groan behavior and to identify suspension components that affect the groan behavior. The ADAMS software was used to model a brake/suspension system. A nonlinear friction force was used to couple the rotor with the caliper. The spectral content of the groan vibration shows response at multiples of a certain fundamental frequency. The stick-slip vibration typically occurs at the 1st, 2nd, or 3rd, order of the fundamental frequency. The model predictions were found to agree qualitatively with groan operating test data.
Recommended Content
Technical Paper | A METHOD FOR MESUARING CREEP GROAN BASED ON BRAKE INERTIAL DINAMOMETER |
Technical Paper | Creep Groan of Disc Brakes |
Technical Paper | Structural Design Technology for Brake Squeal Reduction Using Sensitivity Analysis |
Citation
Donley, M. and Riesland, D., "Brake Groan Simulation for a McPherson Strut Type Suspension," SAE Technical Paper 2003-01-1627, 2003, https://doi.org/10.4271/2003-01-1627.Also In
References
- Xu, J.J “Disc Brake Low Frequency Creep Groan Simulation Using ADAMS,” 2000 ADAMS International User Conference Orlando, Florida June 2000
- Jang, H. Lee, J.S. Fash, J.W. “Compositional effects of the brake friction material on creep groan phenomena” Proceedings of 13th International Conference on Wear of Materials Vancouver, BC, Canada 1477 1483 April 2001
- Abdelhamid, M.K. “Creep Groan Of Disc Brakes” SAE Paper 951282 1995
- Riesland, D. et al “Rear disk brake moan - experimental investigation and ADAMS simulation” 2 nd International Seminar on Automotive Braking - Recent Developments and Future Trends Leeds U.K. May 1998
- Halloran, P.D. Hetherington, P.L. “Suspension Related Low Frequency Rear Drum Brake Noise” SAE Paper 911043 1991
- Donley, M.G. Lim, T.C. Steyer, G.C. “Dynamic Analysis of Automotive Gearing Systems” SAE Paper 920762 1992