水轮发电机组结构密集特征值求解新方法  

A NEW METHOD FOR SOLVING THE CONCENTRATED EIGENVALUES OF THE WATER TURBOGENERATOR

作　　者：刘玉民[1] 张帆[1] 吴蕙[1] 

机构地区：[1]机械工业部郑州机械研究所

出　　处：《机械强度》1996年第4期9-11,共3页Journal of Mechanical Strength

基　　金：国家自然科学基金

摘　　要：用自由拘束模态综合技术与反复移负频的飘移子空间迭代相结合的新方法，解决了水轮发电机组大型结构的密集特征值求解难题。使用这种新方法，对某发电机组的上机架进行了特征值求解，比过去的方法提高效率１７倍。A new method of combining of Freely Constrained Mode Synthesis Technique and subspace iteration with shifting negative values repeatedly is put forward. The difficulty of solving the concentrated eigenvaluesof the water turbogenerator has been overcome successfully. The eigenvalues of a water turbogenerator were solvedby this method,the efficiency increased 17 times than the old.

关 键 词：特征值 自由拘束 模态综合 水轮发电机组 

分 类 号：TM312[电气工程—电机]