文章摘要
Research on Three-dimensional Stiffness of Wedge-shaped Rubber Shock Absorber Based on Orthogonal Experiment
Received:June 15, 2021  Revised:June 15, 2021
DOI：10.12136/j.issn.1000-890X.2022.04.0268
Key Words: wedge-shaped rubber shock absorber；three-dimensional stiffness；finite element model；constitutive model；orthogonal experiment；Shore A hardness
Author NameAffiliationE-mail
SUN Yi Qingdao University of Science and Technology 1157961601@qq.com 
LI Jiawei Qingdao University of Science and Technology  
Jiang Xiaoyan Qingdao Aotai Traffic Equipment Co.，Ltd  
HUANG Jing* Qingdao University of Science and Technology lhjqust@163.com 
ZENG Xiankui Qingdao University of Science and Technology  
JIAN Ranran Qingdao University of Science and Technology  
HU Xufeng Qingdao Lujinyuan Security Technology Co.，Ltd  
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Abstract:
      The three-dimensional model of the wedge-shaped rubber shock absorber was established through Solidwords software，the stress-strain curve of the rubber material（natural rubber compound） was obtained through uniaxial compression test，and the Mooney-Rivlin model was determined as the constitutive model of rubber material by comparing the finite element simulation results with the test results.The Shore A hardness of rubber material，thickness of rubber layer，inclination angle of rubber layer and number of steel plates were used as variable factors for orthogonal experiment，and their influences on the three-dimensional stiffness of wedge-shaped rubber shock absorber were studied.The results showed that with the increase of Shore A hardness of rubber material and inclination angle of rubber layer，the axial and longitudinal stiffness of wedge-shaped rubber shock absorber first increased and then decreased.With the increase of the thickness of the rubber layer，the axial and longitudinal stiffness of the shock absorber decreased.With the increase of the number of steel plates，the axial and longitudinal stiffness of the shock absorber increased.These four variable factors had little effect on the lateral stiffness of the shock absorber.The shore A hardness of rubber material，thickness of rubber layer，inclination angle of rubber layer and number of steel plates meeting the three-dimensional allowable stiffness of the rubber shock absorber at the same time were more than 66 degrees，30～35 mm，64°～67° and 1-2 respectively.
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