基于有限元的汽轮发电机转子动特性分析

Analysis on dynamic characteristics of steam turbo-generator rotor based on finite element

论述了对汽轮发电机动特性分析的重要性,提出用有限元方法计算求解发电机转子动特性参数的思路,并以上海汽轮机有限公司设计制造的某发电机转子进行了建模和简化,采用block lanczos方法对模型进行了模态分析求解,并对求解结果进行了分析,最后得出有限元法分析发电机转子固有频率误差的关键所在。

This paper firstly puts forward the importance of dynamic characteristic analysis on the steam turbo-generator rotor and brings forward the finite element method to calculate the dynamic characteristic parameters. Then it set up a model ofa generator rotor produced by Shanghai steam turbo-generator co.Ltd with some predigestion and gets the modal results by the block lanczos method. Finally, the calculated results are checked and the key source of the error factor is gained.