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为建立精确的汽轮发电机转子扭振模型，本文讨论了用试验所得不完全模态来修正由有限元法建立的集中参数模型，使其在所需的频率范围内与测试的动力特性一致，文中对国产２００ＭＷ机组进行了实机计算。
In order to establish a precise rotor torsional vibration model of turbogenerator, this paper discusses the modification of the lumped parameter model established by the finite element method with the imperfect modalities obtained in the experiment to make it consistent with the tested dynamic characteristics in the required frequency range In this paper, a real machine calculation is made on a domestic 200MW unit.