A model for dynamic analysis on a whole hydroelectric machine system was studied by multiple step mode synthesis technique, which consists of rotary and fixed components.
采用多级模态综合技术并利用结构旋转对称的特点，建立包括转动部件和固定部件在内的水轮机整机系统动力特性分析模型。
A method of mode correction is suggested to improve the accuracy of the experimental mode based on the results of experimental modal analysis, modal synthesis technique and Rayleigh's method.
用试验模态分析结果、模态综合技术、瑞利法相结合的办法，提高了试验模态分析所得振型的精度。
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