Abstract
Many numerical simulations have been dedicated to the brake squeal prediction by considering the predominant influence of the frictional interface between the pads lining and the disc. However, many others contact interfaces are present in an automotive brake system. Nowadays, the influence of the state of these contacts on the stability behavior of an automotive brake system and thus, on the squeal propensity is not yet well understood.This paper attempts to provide a huge investigation on the sensitivity of squeal propensity to the various contact interfaces between pads, piston, bracket and caliper. The main contribution of the present study aims not only to give a better understanding on the role of these numerous contacts in an automotive brake system but also to propose a strategy based on genetic algorithms in order to reduce the number of simulations to achieve by ranking the effects of all the independent contact states in a pre-design process.
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