汽轮机低压外缸体接触误差分析  

The Analysis of Contact Error in Assembling the LP out Cylinder of a Steam Turbine

作　　者：孙稳[1] 王敏 邵华[1] 

机构地区：[1]上海交通大学机械与动力工程学院,上海200240 [2]上海电气电站有限公司汽轮机厂工艺处,上海200240

出　　处：《汽轮机技术》2009年第4期300-303,共4页Turbine Technology

摘　　要：对汽轮机低压外缸加工过程中基准面接触误差进行了分析,根据缸体类零件的结构及受力特点分析了它们对缸体变形的不同影响。基于接触问题有限元方法,结合实例分析了不同接触表面对缸体零件变形的影响,为大型缸体加工及装夹提供了参考。Contact problem has drawn more and more attention as a engineering problem. This paper classes the contact errors to four basic types, then analyses the effects of these errors to the turbine cylinder according to the turbine structure and force character. Based on the FEA method of contact problem, this paper analyses the cylinder distortion aroused by face error, presents the reference for the machining and assembling of large-scale cylinder.

关 键 词：接触问题 有限元 误差模型 缸体 

分 类 号：TK266[动力工程及工程热物理—动力机械及工程]