RATTLE REDUCTION OF AUTOMOTIVE COMPONENT: A FEM APPROACH

摘要

Due to the continual diminishment of engine, power trainand tire noise levels, squeak and rattle as become a primarysource of undesired noise in automobiles. This article presentsa finite-element-based methodology for the improvement ofrattle performance of vehicle components. This approachattacks complicated nonlinear impact problems involving rigidand flexible structures by a rather indirect method that allowsfor the generation of design sensitivity information related toimpact frequency and severity from large-scale computermodels. This is done by adjusting the system parameters of arelated linear problem in such a manner that the nonlinearsystem response is improved. For implementation purposes, ithas been applied to study the rattle of the latch and comerrubber snubbers of a glove compartment. Results from theglove compartment study are summarized herein. Extensionsto other rattle problems are also highlighted.