基于3DCS的三维尺寸公差的分析与优化

doi:10.16182/j.issn1004731x.joss.201805014

摘要/Abstract

摘要： 针对工程实践中所面临的公差分配与优化问题,采用矢量的概念建立三维尺寸链的向量环模型,探索基于等值分配公差基础上采用“二分”法思想进行优化的改进方案。通过某型号汽车虚拟装配过程中后蒙皮与尾灯安装在白车身上的具体实例,应用基于3DCS的三维尺寸公差分析与优化仿真给出了既能满足产品的设计性能需求又简单易行且经济性较好的符合工程实践的公差优化改进方案,验证了改进方案较原有相等公差分配方法具有较大的优越性,能够解决工程实践中企业所面临的实际问题。

关键词: 向量环模型, 公差分析与优化, 蒙特卡洛模拟法, 3DCS

Abstract: According to the tolerance allocation and optimization problems in engineering practice, the vector loop model is established by using the concept of vector, and the improved scheme based on the idea of "dichotomy" method is explored. Through the virtual assembly process of a certain model car, the rear cover and tail light are mounted on the white body. Based on 3DCS dimensional tolerance analysis and optimization of simulation, it is proved that the improved scheme with some advanced and practical property has great superiority compared to the original equal tolerance allocation method. It can solve the practical problems faced by enterprises in the engineering practice.

Key words: vector loop model, tolerance analysis and optimization, Monte Carlo simulation, 3 DCS

中图分类号:

TP391.9

孟巧凤, 张林鍹, 尹琳峥, 侯志霞, 邹方. 基于3DCS的三维尺寸公差的分析与优化[J]. 系统仿真学报, 2018, 30(5): 1730-1738.

Meng Qiaofeng, Zhang Linxuan, Yin Linzheng, Hou Zhixia, Zou Fang. Three Dimension Tolerance Analysis and Optimization Based on 3DCS[J]. Journal of System Simulation, 2018, 30(5): 1730-1738.

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