中国机械工程 ›› 2010, Vol. 21 ›› Issue (04): 495-499.

• 车辆工程 • 上一篇    下一篇

多学科优化设计在拼焊板车门轻量化中的应用

胡朝辉;成艾国;王国春;钟志华
  

  1. 湖南大学汽车车身先进设计制造国家重点实验室,长沙,410082
  • 出版日期:2010-02-25 发布日期:2010-03-10
  • 基金资助:
    教育部长江学者与创新团队发展计划资助项目(531105050037);湖南大学汽车车身先进设计制造国家重点实验室自主研究课题资助项目(60870002) 
    Supported by Program for Changjiang Scholars and Innovative Research Team in University(No. 531105050037)

 Research on Application of Multidisciplinary Design Optimization to TWB Door Lightweight

Hu Zhaohui;Cheng Aiguo;Wang Guochun;Zhong Zhihua
  

  1. State Key Laboratory of Advanced Design and Manufacture for Vehicle Body,Hunan University,Changsha,410082
  • Online:2010-02-25 Published:2010-03-10
  • Supported by:
     
    Supported by Program for Changjiang Scholars and Innovative Research Team in University(No. 531105050037)

摘要:

采用均匀拉丁方实验设计方法进行了样本数据设计,并且采用移动最小二乘响应面方法构建了拼焊板内板门系统的刚度、强度、侧碰安全性多学科系统的近似模型。利用连续二次规划优化方法对此近似模型进行了优化,将拼焊板内板焊缝线位置及各板件的厚度作为设计变量,在使车门系统的下垂刚度、强度及侧碰性能得到提高的同时,使得车门系统质量得到较大程度的减小。

关键词:

Abstract:

Sampling points were obtained by using uniform Latin squares design of experimental method, and the multidisciplinary design optimization(MDO) approximated system,including the door stiffness, strength and side crashworthiness,was constructed by the moving least-squares response surface approximate method.The approximate model was then optimized by using sequential quadratic programming method. The performance of the door system,including the vertical stiffness, strength and side crashworthiness,
was improved by optimizing the positions of the welding line as well as thickness of each part. In addition, the weight of the door is also reduced.

Key words: multidisciplinary design optimization(MDO), response surface model, lightweight, tailed weld bank(TWB)

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