Journal of South China University of Technology(Natural Science Edition) ›› 2021, Vol. 49 ›› Issue (3): 1-7.doi: 10.12141/j.issn.1000-565X.200391

Special Issue: 2021年机械工程

• Mechanical Engineering • Previous Articles     Next Articles

Calculation Method for Rigid Mode and Displacement Control of Powertrain-Subframe Mounting System

SHANGGUAN Wenbin FANG Zhiyuan LI Liping LI Guanglong   

  1. School of Mechanical and Automotive Engineering，South China University of Technology，Guangzhou 510640，Guangdong，China
  • Received:2020-07-06 Revised:2020-09-01 Online:2021-03-25 Published:2021-03-01
  • Contact: 李广龙(1982-) ，男，工程师，主要从事汽车性能测试、汽车实验台架设计等的研究。 E-mail:ligl@scut.edu.cn
  • About author:上官文斌(1963-) ，男，博士，教授，博士生导师，主要从事汽车振动控制研究。E-mail: sgwb@scut.edu.cn
  • Supported by:
    Supported by the National Natural Science Foundation of China ( 51975217)

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Abstract: A new 12 DOFs ( Degrees of Freedom) calculation model for the powertrain-subframe mounting system was established by reducing the mount into three-dimension springs with the nonlinear force and displacement relation． Then the rigid mode and energy distribution，the displacements of the powertrain's CG，the displacements of the subframe's CG，and the displacements and loads of the mounts in the powertrain-subframe mounting system of an electrical vehicle under the ultimate load were calculated． The theoretical calculation model was verified by ADAMS model． The calculation model provides methods for rigid mode optimization and the design of mounting force-displacement control in powertrain-subframe mounting system．

Key words: electrical vehicle, powertrain-subframe mounting system, rigid mode, nonlinear mounting forcedisplacement relation, displacement calculation

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