Research on Design Method of Automotive Powertrain Mount Structure |
Received:October 16, 2020 Revised:October 16, 2020 |
DOI:10.12136/j.issn.1000-890X.2021.06.0444 |
Key Words: automotive powertrain;mount;main rubber spring;structural design;topology optimization;parameter optimization;shape optimization;limit design |
Author Name | Affiliation | E-mail | XIA Zhangyang* | Zhuzhou Times New Materials Technology Co.,Ltd | 15886339117@163.com | DING Xingwu | Zhuzhou Times New Materials Technology Co.,Ltd | | BU Jiling | Zhuzhou Times New Materials Technology Co.,Ltd | | HE Xinfeng | CRRC Electric Vehicle Co.,Ltd | |
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Abstract: |
The automotive powertrain mount(short for mount) structure was designed through topology optimization,parameter optimization,shape optimization and limit design.Firstly, in the design process,the topology optimization was carried out,and the conceptual structure of the mount was taken as the original design scheme. Secondly,the parameters of the key dimensions of the mount structure were optimized,so that the three dimensional linear stiffness deviation of the mount was less than 3%,which met the technical requirements. Then,the shape optimization of the stress concentration area was carried out,so that the maximum principal stresses at y and z directions were significantly reduced. Finally,the limit design was carried out based on the nonlinear curve design criteria of the mount,and the final mount structure was obtained.This research method was suitable for the design of mount products and other parts of automobiles. |
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