This paper introduces the problem investigation ideas and the root cause analysis process of cracking and failure of the rear suspension buffer block in the durability test of a certain vehicle model.The influence of bias pressure on the life of the buffer block was demonstrated by finite element analysis and MTS bench simulation test.It not only provides design engineers with ideas and methods for troubleshooting and solving problems,but also discusses the root causes of cracking of rear suspension buffer blocks,guides product design to avoid in the early stage,and improves product reliability.
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