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Experimental research on elastic or rigid clamp of shock absorber for its outer performance test

Published:2015-06-08 author:CAI Ming-long1，DUAN Fu-bin2，YANG Li-kang2，ZHANG Ya-dong1，SUN Hai-jie2 Browse: 3451 Check PDF documents

Experimental research on elastic or rigid clamp of shock absorber

for its outer performance test

CAI Ming-long1，DUAN Fu-bin2，YANG Li-kang2，ZHANG Ya-dong1，SUN Hai-jie2

（1. College of Mechanical Engineering，Zhejiang University of Technology，Hangzhou 310014，China；

2. School of Mechanical and Automotive Engineering，Zhejiang University of Science and Technology，

Hangzhou 310023，China）

Abstract：Aiming at the detection of oil shock absorber abnormal noise，the test mode of the piston rod acceleration，and test data

difference of elastic or rigid clamp for outer performance，for different clamping mode the shock absorber's outer performance test was

carried out. By designing the contrast experiment of conventional fixture for outer performance test（called the rigid clamping）and the

fixture for the piston rod acceleration test（called elastic clamping），the structural and functional characteristics of conventional fixture and

the fixture of the piston rod acceleration test was analyzed，then the reasons for the differences of outer performance curves by different

fixtures were investigated，further more based on the working principle and structure parameters of shock absorber，the damping force

model was established and simulated correctly. The results indicate that the two clamping modes are common in testing outer performance

of damper，and also reflect the performance of the internal shock absorber in different way.

Key words：shock absorber；outer performance testing；fixture；clamping mode；piston rod acceleration；contrast experimental

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