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Analysis of Rear Brake Grinding Noise by Rear Suspension Types
Technical Paper
2017-01-2486
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Brake grinding noise is caused by the friction of the disc and pads. The friction generates vibration and it transmits to the body via the chassis system. We called it structure-borne noise.
To improve the noise in the vehicle development, the aspects of chassis or body's countermeasure occurs many problems, cost and time. In this reason many brake companies try to make solution with brake system, like brake pad materials or disc surface condition. However the countermeasures of excitation systems also have a lot of risk. It could be occurred side-effects of braking performance, and need to re-verify brake noise like Creep-groan, Groan, Squeal, Judder and so on. For this reason, it is essential to make a robust chassis system in the initial development stage of the vehicle for the most desirable grinding noise-resistant vehicle.
This paper is about rear brake grind noise path analysis and countermeasure of chassis system. There are two steps to analysis. First step is impact hammer test like FRF, MODAL test. Second step is noise data acquisition on real vehicle test and use analysis tools ODS, TPA. This paper has analysis about two suspension types, CTBA and Multi-Link.
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Lee, K., Kim, D., and Ko, D., "Analysis of Rear Brake Grinding Noise by Rear Suspension Types," SAE Technical Paper 2017-01-2486, 2017, https://doi.org/10.4271/2017-01-2486.Data Sets - Support Documents
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References
- Riemann , D. and Haverkamp , M. Brake Grind Noise Reduction Potential on Vehicle Level - A TPA Study SAE Technical Paper 2011-01-2362 2011 10.4271/2011-01-2362
- Jung , T. and Kim , J. Study of Reduction Method of Brake Grind Noise SAE Technical Paper 2014-01-2513 2014 10.4271/2014-01-2513
- Ganguly , S. , Pastor , K. , Folta , G. , lanka , R. et al. Reduction of Groan and Grind Noise in Brake Systems SAE Technical Paper 2011-01-2364 2011 10.4271/2011-01-2364
- Woo , J. , Kim , J. , Kim , K. , and Ko , D. A Study on the Transfer Path Analysis of Brake Creep Groan Noise SAE Technical Paper 2014-01-2510 2014 10.4271/2014-01-2510