Browse Publications Technical Papers 2020-01-1610
2020-10-05

Experimental Investigation of Brake Noise 2020-01-1610

Experimental Investigation of Brake Noise L. Zeng, J. Sisco, A. Bourgeau Chassis Engineering, FCA Group 800 Chrysler Dr., Auburn Hills, Michigan 48326 Automotive customers are very critical about brake performance, and brake noise complaints account for about 25% of all brake related warranty claims. Automotive OEMs and braking system suppliers have invested heavily in brake noise solution technologies and processes. The implementation of noise matrix screen testing and analytical CAE brake instability simulation made significant improvements in developing brake noise solutions during product development. To further improve brake noise solution development efficiency, it is very important to have a highly confident CAE model that correlates with experimental test data. Because of the high mode density of brake systems in the high frequency range as well as the complexity of product components and interaction variations, it is critical to identify not only the brake-squeal frequencies but also the brake-squeal instability mode shapes as well. This paper will share some of the experimental investigation tools deployed by the Chassis Engineering of FCA group during the brake noise solution development process.

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