Mechanical Analysis and Testing of Rotary Arm System of TLJ-60A Geotechnical Centrifuge
Received:July 24, 2015  Revised:October 10, 2015
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DOI:10.7643/issn.1672-9242.2015.05.006
KeyWord:geotechnical centrifuge  rotary arm  strength  numerical simulation  test
           
AuthorInstitution
YU Shao-rong Institute of Systems Engineering,CAEP,Mianyang ,China
DU Qiang Institute of Systems Engineering,CAEP,Mianyang ,China
LI Xin-yao Institute of Systems Engineering,CAEP,Mianyang ,China
WANG Jun Institute of Systems Engineering,CAEP,Mianyang ,China
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Abstract:
      Objective To evaluate whether the rotary arm system of TLJ-60A geotechnical centrifuge can meet the strength requirement and give some suggestions. Methods The 3-dimensional finite element numerical model was built and the boundary and load conditions were determined. Then the maximum equivalent stresses in key locations of the rotary arm system were calculated and a suggestion on the material selection was given. After the centrifuge assembling, the strains of the corresponding locations were tested in a working condition. Results It showed that the numerical results agreed well with the test results. The mean difference was 4.5%, the maximum difference was 12.46%; and the numerical results were conservative. Conclusion The evaluation and the suggestions were correct, which supported the one-time success of the equipment.
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