1995-05-01

Structural Instability Test/Analysis of Brake Squeal 951281

A general modal instability model that describes the squeal problem for both disc brakes and drum brakes is presented. The model includes different sources of instability. Brake input mobility measurements under conditions of static and dynamic braking are presented and analyzed in light of the general modal instability model. Time frequency analysis is used to differentiate between simple one frequency squeals and complex multiple frequency squeals. Investigation of some of the brake design parameters that affect brake stability is presented.

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