基于有限元法的发电机护环液压胀形数值分析  

Numerical analysis of hydraulic bulging of generator retaining ring based on finite element method

作　　者：倪洪启[1] 吴宝胜 宋荣发 杨兵 NI Hongqi;WU Baosheng;SONG Rongfa;YANG Bing(School of Mechanical and Power Engineering,Shenyang University of Chemical Technology,Shenyang 110142;Jiangsu Shengxian Forging Co.,Ltd,Changzhou,Jiangsu 213169)

机构地区：[1]沈阳化工大学机械与动力工程学院,沈阳110142 [2]江苏圣贤锻造有限责任公司,江苏常州213169

出　　处：《电气技术》2023年第7期34-38,46,共6页Electrical Engineering

摘　　要：应用有限元软件的静态结构分析功能,对2.5万kW的护环液压胀形过程进行数值模拟及结果分析。首先分析护环在胀形过程中受到的应力、应变及外圆的尺寸变化情况,然后对比仿真与实际测量两种情况下,发电机护环胀形过程中外径尺寸的差别。结果表明,在仿真与实际测量两种情况下,发电机护环胀形过程中外径尺寸的最大误差为8.8%,证明使用有限元法可以比较准确地模拟护环液压胀形过程,具有较高的实用性。The static structure analysis function of the finite element software is used to carry out numerical simulation and result analysis for the hydraulic bulging process of the 25000 kilowatt retaining ring.The stress,strain and the size change of the outer circle of the retaining ring in the bulging process are analyzed,and the difference of the outer diameter between the simulation and actual measurement is analyzed.The results show that the maximum error of the outer diameter during the bulging process of the generator retaining ring is 8.8%under the two conditions of simulation and actual measurement.Therefore,the hydraulic bulging process of the retaining ring can be accurately simulated by using the finite element method,which has high practicability.

关 键 词：静态结构分析 发电机护环 液压胀形 数值模拟 有限元分析 

分 类 号：TM31[电气工程—电机]