钣金件多工位装配尺寸误差建模分析与仿真  

Dimensional Error Modeling Analysis and Simulation of Sheet Metal MultiStage Assemblies

作　　者：余德忠[1] 徐向纮[1] 

机构地区：[1]中国计量学院,杭州310018

出　　处：《中国机械工程》2013年第17期2331-2336,共6页China Mechanical Engineering

摘　　要：钣金件装配尺寸精度影响其外观、密封及疲劳强度等性能,故很多高精度钣金件采用多工位装配工艺。在建立钣金件多工位装配尺寸误差传播模型的基础上,详细分析了钣金件完全定位、过定位和释放回弹阶段产生的装配尺寸误差,采用状态空间法建立了多工位钣金件装配尺寸误差模型。最后,用MATLAB和FEM仿真了某飞机壁板样件两工位装配尺寸误差,进一步分析了装配尺寸误差传播规律,减小了钣金件装配尺寸误差。The dimensional precision of SMS, which was usually assemblied in the multistage process, determined its appearance, airproof and fatigue performance. Based on the multistage trans- mitting model of dimensional errors of SMS, this paper detailedly analyzed the dimensional errors of SMS in locating phase,over--locating phase and springback phase, and a state space model of dimen- sional errors of multistage assemblies about SMS was erected. Finally, this paper simulated their di- mensional errors of aeroplane wainscot subassembly sample by MATLAB and FEM, and furthermore analyzed transmitting law of assembly dimensional errors. It is of vital help to reduce dimensional er- rors of SMS.

关 键 词：钣金件 多工位装配 尺寸误差建模 变形回弹 分析仿真 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]