定位方案三维稳健性分析及一般解推导  

Robustness Analysis of Locating Scheme for 3D Workpieces and Its General Solution

作　　者：林嘉[1] 杨夫勇 郑丞 金隼[1] LIN Jia;YANG Fuyong;ZHENG Cheng;JIN Sun(Shanghai Key Laboratory of Digital Manufacture for Thin-walled Structures, Shanghai Jiao Tong University, Shanghai 200240, China;Department of Manufacturing and Engineering, Shanghai Aircraft Manufacturing Co., Ltd., Shanghai 200436, China)

机构地区：[1]上海交通大学上海市复杂薄板结构数字化制造重点实验室,上海200240 [2]上海飞机制造有限公司制造工程部,上海200436

出　　处：《上海交通大学学报》2019年第4期405-412,共8页Journal of Shanghai Jiaotong University

基　　金：国家自然科学基金(51175340);国家自然科学基金委员会创新研究群体科学基金(51121063);高等学校学科创新引智计划(B06012)资助项目

摘　　要：空间三维定位涉及参数众多,定位误差分析模型形式复杂,现有研究多通过数值方法求解稳健方案,只能得到特殊解而无法获得一般解,难以揭示共性规律.为此,结合常用的工程条件和习惯引入2个附加假设,在对三维确定性定位误差分析模型进行简化的基础上,对定位方案的稳健性进行解析分析,并给出最稳健方案的一般解.以采用经典一面(3定位块)两销定位方式的某平板工件为例,将该一般解与商用三维偏差分析软件VisVSA的分析结果进行了对比验证,进而应用该一般解对某飞机后机身冲压排气管的安装定位方案进行了优化.The locating error analysis model of 3D workpieces involves a large number of parameters and is complicated. To find robust locating scheme by this model, most of the existing researches adopt numerical method;however, only a specific solution can be achieved rather than a general solution, thus regularities or rules cannot be revealed explicitly. In this study, by introducing two additional assumptions according to common engineering conditions, the deterministic locating analysis model is simplified;based on the simplified model, the robustness of locating scheme is analyzed analytically, and general solution of the most robust locator layout is given. The solution and what it reveals, are validated by a commercial variation analysis software VisVSA, and by using the locating of a plate workpiece as an example. The result has applied to the locating scheme design of the mounting of a stamp exhaust pipe on the rear fuselage.

关 键 词：确定性定位 定位方案 稳健设计 

分 类 号：TH162[机械工程—机械制造及自动化]