Abstract
Rubber bushing is a very important connection component in vehicle suspension. It plays an important role in vehicle performance. To resolve a crack issue of the bushing occurred in load test, the optimal design is requested. The material parameters of rubber are identified by minimizing the errors between the simulated and tested stiffness curves of bushings. The structure optimization is studied to obtain a new design, which reduces the stress in the crack area and keeps nearly the same stiffness of the original design. The investigation with several load cases shows that the stresses of the optimized bushing decreases significantly from the original design.KeywordsRubberMaterialIdentificationStiffnessOptimization
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