飞机装配生产线工装少冗余约束重组方法  

Restructuring Method of Tooling With Less Redundant Constraints in Aircraft Assembly Line

作　　者：巴晓甫 薛红前[1] 李西宁[1] BA Xiaofu;XUE Hongqian;LI Xining(Northwestern Polytechnical University,Xi’an 710072,China;AVIC Xi’an Aircraft Industry Group Co.,Ltd.,Xi’an 710089,China)

机构地区：[1]西北工业大学,西安710072 [2]中航西安飞机工业集团股份有限公司,西安710089

出　　处：《航空制造技术》2021年第16期51-57,共7页Aeronautical Manufacturing Technology

摘　　要：为了提高飞机装配生产线工装的重组性能以满足多种型号飞机装配的需要,提出工装少冗余约束重组方法。基于对工装与地面连接对的全冗余约束模型和无冗余约束模型的分析,以及工装重组效率和重组刚度的平衡分析,通过释放一些对重组刚度影响较小但是对重组效率影响较大的约束自由度,建立工装少冗余约束重组数学模型,进而建立工装少冗余约束重组结构模型。在此基础上,开展了工装的可重组设计。分析表明,基于少冗余约束重组方法,飞机装配生产线工装的重组性能将得到大幅提高,其中重组效率将提高3倍,带入重组应力的连接对数量将减少50%。In order to improve the restructuring performance of tooling in aircraft assembly line to meet the assembly requirements of various aircraft types,a method of tooling restructuring with less redundant constraints is proposed.Based on all redundant constraint model and non redundant constraint model analysis of tooling and connection pairs,and balance analysis of efficiency of tooling restructuring and stiffness of tooling restructuring,by releasing some constraint degrees of freedom which have little influence on the restructuring stiffness but great influence on the restructuring efficiency,the mathematical model of the restructuring with less redundant constraints is established,and then the structural model of the restructuring with less redundant constraints is established.On this basis,the restructuring design of tooling is carried out.The analysis shows that the restructuring performance of the aircraft assembly line tooling can be greatly improved based on the restructuring method with less redundant constraints,in which the restructuring efficiency can be increased by 3 times and the number of connection pairs brought into the restress can be reduced by 50%.

关 键 词：飞机装配生产线 工装 重组 连接对 少冗余约束 调姿定位器 

分 类 号：V262.4[航空宇航科学与技术—航空宇航制造工程]