轿车车身公差分析优化系统研究  

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

作　　者：李军[1] 刘昭[1] 洪印涛 冒小文 

机构地区：[1]重庆交通大学机电与汽车工程学院,重庆400074

出　　处：《重庆交通大学学报（自然科学版）》2015年第1期162-166,共5页Journal of Chongqing Jiaotong University(Natural Science)

基　　金：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)

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。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.

关 键 词：车辆工程 车身 公差分析 尺寸工程 

分 类 号：TH16[机械工程—机械制造及自动化] U46[机械工程—车辆工程]