中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2015, Vol. 34 ›› Issue (1): 162-166.DOI: 10.3969/j.issn.1674-0696.2015.01.35

• • 上一篇    

轿车车身公差分析优化系统研究

李军,刘昭,洪印涛,冒小文   

  1. 重庆交通大学 机电与汽车工程学院,重庆 400074
  • 收稿日期:2013-04-25 修回日期:2013-07-10 出版日期:2015-02-15 发布日期:2015-03-10
  • 作者简介:李军(1964—),男,重庆人,教授,主要从事汽车发动机排放与控制方面的研究。E-mail:cqleejun@sina.com。
  • 基金资助:
    重庆市教委自然科学项目(KJ090408);重庆交通大学研究生教育创新基金项目(20120108)

Study on Tolerances Analysis of Body-in-White and Optimize the System

Li Jun, Liu Zhao, Hong Yintao, Mao Xiaowen   

  1. School of Mechatronics & Automobile Engineering, Chongqing Jiaotong University, Chongqing 400074, China
  • Received:2013-04-25 Revised:2013-07-10 Online:2015-02-15 Published:2015-03-10

摘要: 提出了一款车身公差分析优化系统。优化系统可以运用非合作博弈的纳什均衡效用矩阵进行公差分配优化,进行公差分析采用蒙特卡罗法验算所需测点间隙与高差,并预测超差率,针 对分析结果的不同超差率,提供不同产品与工序更改方案,最后使用产生式规则和关系数据库扩充优化系统数据库。通过应用本款软件可以缩短设计周期,节约成本,提高公差水平。

关键词: 车辆工程, 车身, 公差分析, 尺寸工程

Abstract: A system that could assign and analyze the tolerance of sheet-metal automatically in the design period was proposed. The proposed system used non-cooperative game to optimize tolerance allocation and used Monte-Carlo method to detect whether the gap and flush was appropriate or not. Furthermore, the super slip was predicted. According to the different super slips, different improved plans of product and procedure were provided. Finally, production rule and relationship data base were used to enlarge the optimization data base. The proposed system can save the time of designing cycle and costs, and improve the level of tolerance management and quality.

Key words: vehicle engineering, body-in-white, tolerance analysis, dimensional engineering

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