导弹装配角误差传播建模研究  

Angular Deviation Analysis of Missile Assembly

作　　者：宁丹峰[1] 陈万春[1] 于江祥[2] 张家杰 刘新建 

机构地区：[1]北京航空航天大学宇航学院,北京100083 [2]北京电子工程总体研究所,北京100854 [3]北京航天新风机械设备有限责任公司,北京100854

出　　处：《现代防御技术》2016年第2期48-54,67,共8页Modern Defence Technology

摘　　要：装配过程的误差建模是分析装配精度的重要手段之一。通过分析影响导弹装配结果的尺寸和形位精度、装夹定位精度,将装配误差源分为工装装夹精度和产品制造精度2类,不同形式的误差通过虚拟夹具的概念进行统一表达,基于误差流理论对导弹装配建立误差传播的状态空间模型,求出该过程的状态空间表达式,应用该模型对装配过程中的角误差进行分析。将分析得到的结果同蒙特卡罗仿真的结果进行比较,2种方法的相对误差小于3%,说明该方法可行。该方法的优势在于可分析复杂装配过程,还可对各工序装配效果进行观测及向后分析。Variation modeling is one of the most important tools for assembly precision analysis. Con- sidering dimension and geometric variation, and part situation variation, the deviation source that affects assembly accuracy is clustered into two types： precision of geometric location and orientation, and precision of geometric form. These different types of variation or deviation are unified by virtual fixture. So a 3D rigid assembly state space modeling technique is developed for stream of variation analysis in multi-station processes. And a-missile-cabin-assembly process is analyzed in this model. It enhances the applicability in modeling complex assemblies. The developed methodology outperforms the current simulation based techniques in computation efficiency but it is also more powerful in backward , not only alysis. The in forward analysis of complex assembly systems, model is validated using Monte Carlo series Simulations.

关 键 词：导弹装配 角误差 虚拟夹具 误差流 状态空间 蒙特卡罗仿真 

分 类 号：TJ76[兵器科学与技术—武器系统与运用工程] TP391.9[自动化与计算机技术—计算机应用技术]