多工序加工过程的误差传递建模  

Modeling of Variation Propagation in Multi-stage Machining Process

作　　者：沈颖华[1] 杨建国[1] 

机构地区：[1]上海交通大学机械与动力工程学院,上海200030

出　　处：《机械工程师》2008年第3期26-29,共4页Mechanical Engineer

基　　金：高等学校全国优秀博士学位论文作者专项资金资助项目(2001.3.1);上海市引进技术的吸收与创新年度计划项目(05-12)

摘　　要：一个复杂的加工系统通常包括多个工序。当工件在工位间传递时,误差将会在工件上传递并累加。文中采用状态空间模型来描述误差传递。用状态空间模型的矢量理论来计算尺寸偏差的累积。论述了系统建模的推导过程。模型的有效性已经得到验证。这个模型在加工中误差来源的诊断有很大的应用前景。A complicated machining process always contains muhiple stages. Dimensional variation from all operations in the muhi-stagc machining process will be accumulated and transformed. In this paper, a state space modeling is developed to predict the dimensional variation propagation in the process. The procedure of the model is presented. The effectiveness of the model is validated by the real case study. The model has great potential in fault diagnosis in the complicated machining process.

关 键 词：多工序制造系统 状态空间模型 误差传递 

分 类 号：TH161.5[机械工程—机械制造及自动化]