This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Drum Brake Contact Analysis and its Influence on Squeal Noise Prediction
Technical Paper
2003-01-3348
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
A non-linear contact analysis of a leading-trailing shoe drum brake, using the finite element method, is presented. The FE model accurately captures both the static and pseudo-dynamic behaviour at the friction interface. Flexible-to-flexible contact surfaces with elastic friction capabilities are used to determine the pressure distribution. Static contact conditions are established by initially pressing the shoes against the drum. This first load step is followed by a gradual increase of applied rotation to the drum in order to define the maximum reacted braking torque and pseudo-dynamic pressure distribution at the transition point between sticking and sliding motion. The method clearly illustrates the changes in contact force that take place as a function of the applied pressure, coefficient of friction and initial gap between lining and rotor. These changes in contact area are shown to influence the overall stability and therefore squeal propensity of the brake assembly. Dynamometer tests and experimental modal analysis on individual brake components are used to validate the analytical results.
Recommended Content
Technical Paper | Eliminating Drum Brake Squeal by a Damped Iron Drum Assembly |
Technical Paper | Mode Shape of a Squealing Drum Brake |
Technical Paper | Improved Drum Brake Shoe Factor Prediction with the Consideration of System Compliance |
Authors
Citation
Ioannidis, P., Brooks, P., and Barton, D., "Drum Brake Contact Analysis and its Influence on Squeal Noise Prediction," SAE Technical Paper 2003-01-3348, 2003, https://doi.org/10.4271/2003-01-3348.Also In
References
- Millner N.A. “A Theory of Drum Brake Squeal” Proc. of the IMechE Conference on Braking of Road Vehicles 1976 177 185
- Limpert P. “Brake Design and Safety” SAE 1999 2nd
- Lee, Y.S. Brooks, P.C. Barton, D.C. Crolla, D.A. 2003 “A predictive tool to evaluate disc brake squeal propensity Part2:System Linearisation and modal analysis” Int. J. of Vehicle Design 31 3 309 329
- Day A.J. “Drum brake Interface Pressure Distribution” Proc. Inst. Mech. Engrs 205 127 136
- Lee, Y.S. Brooks, P.C. Barton, D.C. Crolla, D.A. 2003 “A predictive tool to evaluate disc brake squeal propensity Part1: The model philosophy and the contact problem” Int. J. of Vehicle Design 31 3 289 308
- Fieldhouse J. Talbot C. Beveridge C. Steel W. “Holographic interferometry used to investigate noise from a drum brake mounted on a half vehicle test rig” Int. Conf. Braking 2002, From the Driver to the Road 25 42