沙沱水电站溢流坝三斜支臂弧形闸门三维有限元分析  

Three-dimensional FEM Analysis of Three Skew Arms Radial Gate at the Overflow Dam of Shatuo Hydropower Station

作　　者：严沾谋[1] 谭守林[1] 陈寅其 

机构地区：[1]中国水电顾问集团贵阳勘测设计研究院,贵州贵阳550002

出　　处：《现代机械》2013年第4期37-38,42,共3页Modern Machinery

摘　　要：在不做简化处理的情况下,通过CATIA平台对沙沱水电站溢流坝三斜支臂弧形工作闸门进行三维线弹性有限元分析,计算弧形闸门在正常挡水工况下的静应力和变形特性,得出了以下结论:闸门绝大部分米赛斯等效应力较小,最大应力发生在下支臂和下隔板连接处;面板受力很小;在三个支臂中,下支臂的应力最大;上主横梁受力最小,中主横梁次之,下主横梁应力最大;下主横梁附近的纵隔板受力较大;闸门绝大部分的主应力在108 MPa以内;闸门总体变形很小,中主横梁以下部位变形稍大,最大变形发生在闸门底部。： Three-dimensional dam of Shatuo hydropower station of radial gate on the normal water linear elastic FEM analysis of radial working gate with three skew arms at the overflow through CATIA was used to calculate the characteristics of static stress and deformation retaining condition, in the case of without simplified treatment. The results showed that the most von mises stress of gate was small, and the maximum stress appeared at the joint of lower arm and lower separa- tor; the stress of panel was very small ; the stress of lower arm was greatest at the three arms; the stress of upper main beam was smallest, and the stress of middle main beam was second, while the stress of lower main beam was greatest; the stress of longitudinal separator nearby lower main beam was very great ; the most principal stress of gate was within 108 MPa ; the overall deformation of gate was small, and the deformation of gate below middle main beam was great, while the deformation of gate bottom was greatest.

关 键 词：三斜支臂弧形闸门 有限元法 静应力 变形 

分 类 号：TV663.2[水利工程—水利水电工程]