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Use of support vector regression in structural optimization: Application to vehicle crashworthiness design

机译:支持向量回归在结构优化中的应用:在车辆防撞设计中的应用

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摘要

Metamodel is widely used to deal with analysis and optimization of complex system. Structural optimization related to crashworthiness is of particular importance to automotive industry nowadays, which involves highly nonlinear characteristics with material and structural parameters. This paper presents two industrial cases using support vector regression (SVR) for vehicle crashworthiness design. The first application aims to improve roof crush resistance force, and the other is lightweight design of vehicle front end structure subject to frontal crash, where SVR is utilized to construct crashworthiness responses. The use of multiple instances of SVR with different kernel types and hyper-parameters simultaneously and select the best accurate one for subsequent optimization is proposed. The case studies present the successful use of SVR for structural crashworthiness design. It is also demonstrated that SVR is a promising alternative for approximating highly nonlinear crash problems, showing a successfully alternative for metamodel-based design optimization in practice.
机译:元模型被广泛用于复杂系统的分析和优化。如今,与耐撞性有关的结构优化对汽车行业尤为重要,它涉及具有材料和结构参数的高度非线性特性。本文介绍了使用支持向量回归(SVR)进行车辆防撞设计的两个工业案例。第一个应用程序旨在提高车顶抗压强度,第二个应用程序是面对正面碰撞的车辆前端结构的轻量化设计,其中SVR用于构建耐撞性响应。提出同时使用具有不同内核类型和超参数的SVR的多个实例,并选择最佳精度的实例进行后续优化。案例研究表明SVR已成功用于结构耐撞性设计。还证明了SVR是解决高度非线性碰撞问题的有前途的替代方法,在实践中显示了基于元模型的设计优化的成功替代方法。

著录项

  • 来源
    《Mathematics and computers in simulation》 |2012年第12期|21-31|共11页
  • 作者单位

    State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai 200240, PR China Shanghai Key Laboratory of Digital Autobody Engineering, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China;

    Shanghai Key Laboratory of Digital Autobody Engineering, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China;

    Shanghai Key Laboratory of Digital Autobody Engineering, School of Mechanical Engineering, Shanghai Jiao Tong University,Shanghai 200240, PR China Department of Mechanical Engineering, Northwestern University, Evanston, 1L, 60208-3111, USA;

    Shanghai Key Laboratory of Digital Autobody Engineering, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Support vector regression; Metamodel; Crashworthiness; Vehicle lightweight design; Structural optimization;

    机译:支持向量回归;元模型耐撞性车辆轻量化设计;结构优化;
  • 入库时间 2022-08-18 03:29:08

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