This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Low Frequency Drum Brake Noise Investigation Using a 1/4 Vehicle Test Rig
Technical Paper
2000-01-0448
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
SAE 2000 World Congress
Language:
English
Abstract
A test rig which replicates a one quarter vehicle of a rear wheel drive vehicle, including the suspension system, is used to investigate a low frequency noise. The cross beam is included along with the vehicle suspension spring which is loaded against a sprung loaded mechanism that represents the tyre stiffness exactly and supports the brake geometrically as the tyre would. Drive to the drum is from a DC motor through the wheel drive axle.
Holographic Interferometry is used to observe the modes of vibration of the drum with mirrors strategically placed to observe additional features such as the backplate, spring pan and cross beam.
Initial results show the mode of vibration of the backplate to be of a diametral mode order and to be moving in the direction of drum rotation. Additionally it is seen that the spring pan and cross beam exhibit high amplitudes of vibration.
Additional tests are then undertaken with the suspension members omitted and the brake arranged to allow visual access to the brake shoes.
The development of a ½ vehicle test rig is outlined and discussed.
Recommended Content
| Technical Paper | An Investigation of Low Frequency Drum Brake Noise |
| Technical Paper | A Study on Drum-Brake Noise of Heavy Duty Vehicle |
| Technical Paper | Disc Thickness Variation Generation: Dependence on Presence of Road Vibration |
Authors
Citation
Fieldhouse, J., "Low Frequency Drum Brake Noise Investigation Using a 1/4 Vehicle Test Rig," SAE Technical Paper 2000-01-0448, 2000, https://doi.org/10.4271/2000-01-0448.Also In
Brake Technology: ABS/TCS Systems, NVH, and Foundation Brakes
Number: SP-1537; Published: 2000-03-06
Number: SP-1537; Published: 2000-03-06
References
- Fieldhouse J.D. The University of Huddersfield 1993
- Fieldhouse J.D. Newcomb, T.P. “Holographic and Analytical Techniques Applied to Drum Brake Squeal” EAEC 5th International Congress “The Automotive Industry meets the Challenges of the year 2000” 21st - 23rd June 1995 Strasbourg
- Fieldhouse J.D. Rennison M “Drum Brake Noise - A Theoretical and Visual Approach” “Advances in Automotive Braking Technology - Design Analysis and Materials Developments” 25 46 October 1996 Mechanical Engineering Publications Limited (MEP) Publishers to the IMechE 1 86058 039 4
- Fieldhouse J.D. Newcomb “Double Pulsed Holography Used to Investigate Noisy Brakes” Optics and Lasers in Engineering 25 6 “Optical Sensors for Automotive Applications” December 1996 0143-8166(95) 00094-1 455 494
- Fieldhouse J.D. “An Investigation of Low Frequency Drum Brake Noise” 16 th Annual SAE Brake Colloquium October 1998 65 73 SAE Paper Number 982250