汽车工程 ›› 2021, Vol. 43 ›› Issue (6): 870-876.doi: 10.19562/j.chinasae.qcgc.2021.06.010

• • 上一篇    下一篇

基于GWO⁃KRG近似模型的乘员约束系统可靠性优化设计

谷先广1,2,3(),高梦琳1,王笑乐1,黄岳竹1   

  1. 1.合肥工业大学汽车与交通工程学院,合肥 230009
    2.合肥工业大学智能制造技术研究院,合肥 230009
    3.太航常青汽车安全系统(苏州)股份有限公司,苏州 215100
  • 收稿日期:2020-11-20 修回日期:2021-01-15 出版日期:2021-06-25 发布日期:2021-06-29
  • 通讯作者: 谷先广 E-mail:gxghfut@163.com
  • 基金资助:
    中国博士后科学基金(2018M640524);中国博士后特别资助基金(2019T120460)

Reliability Optimization Design of Occupant Restraint System Based on GWO⁃KRG Surrogate Model

Xianguang Gu1,2,3(),Menglin Gao1,Xiaole Wang1,Yuezhu Huang1   

  1. 1.School of Automotive and Traffic Engineering,Hefei University of Technology,Hefei 230009
    2.Intelligent Manufacturing Institute,Hefei University of Technology,Hefei 230009
    3.Taihang Changqing Automobile Safety System (Suzhou) Co. ,Ltd. ,Suzhou 215100
  • Received:2020-11-20 Revised:2021-01-15 Online:2021-06-25 Published:2021-06-29
  • Contact: Xianguang Gu E-mail:gxghfut@163.com

摘要:

为提升乘员约束系统安全性能,本文中将近似模型参数优化技术应用于约束系统可靠性优化设计中。首先建立某车型驾驶员侧约束系统仿真模型,并基于实车碰撞试验结果对仿真模型进行验证,然后采用灰狼优化(GWO)算法优化克里金(KRG)模型的相关参数,得到高精度的GWO?KRG近似模型。最后,基于GWO?KRG近似模型和可靠性优化方法对约束系统进行优化设计。结果表明:GWO?KRG近似模型能提供更准确的预测响应值;经可靠性优化后的约束系统安全性能得到提高的同时可靠性也得到保证。

关键词: 乘员约束系统, 灰狼优化, 克里金近似模型, 可靠性优化设计

Abstract:

In order to enhance the safety performance of the occupant restraint system, the parameter optimization technology for surrogate model is applied to the reliability optimization design of the restraint system in this paper. Firstly, a simulation model for the driver?side restraint system of a vehicle is established and verified by real vehicle crash test. Then, the grey wolf optimization (GWO) algorithm is used to optimize the correlation parameters of Kriging (KRG) model, so a high?accuracy GWO?KRG surrogate model is obtained. Finally, based on GWO?KRG surrogate model, a reliability optimization is conducted on the restraint system. The results show that GWO?KRG surrogate model can provide more accurate predicted response, and after reliability optimization the safety performance of the restraint system is improved with its reliability also guaranteed.

Key words: occupant restraint system, grey wolf optimization, Kriging surrogate model, reliability optimization design