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This paper introduces an optimization strategy for real beam section parameters of vehicle bodies under complex engineering constraints. The bending stiffness and torsional stiffness of the concept body are employed as constraint conditions. A sensitivity analysis based on mass parameters is performed to evaluate the impact of various beam section parameters. Parameters exhibiting high sensitivity are selected as design variables. The findings indicate that the proposed method significantly contributes to achieving weight reduction in automotive body design. Additionally, the optimized beam section models generated through this process can be seamlessly integrated into the construction of concept body frameworks, thus providing a solid basis for advancing to the detailed design phase.

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Parameter Optimization Design of Concept Vehicle Beam Cross-Section Driven by Complex Engineering Constraints

  • 会议论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年

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  • Furong Geng,
  • Jie You,
  • Yonghong Zhao,
  • Jiafu Wang,
  • Wenbin Hou,
  • Changsheng Wang

摘要

This paper introduces an optimization strategy for real beam section parameters of vehicle bodies under complex engineering constraints. The bending stiffness and torsional stiffness of the concept body are employed as constraint conditions. A sensitivity analysis based on mass parameters is performed to evaluate the impact of various beam section parameters. Parameters exhibiting high sensitivity are selected as design variables. The findings indicate that the proposed method significantly contributes to achieving weight reduction in automotive body design. Additionally, the optimized beam section models generated through this process can be seamlessly integrated into the construction of concept body frameworks, thus providing a solid basis for advancing to the detailed design phase.