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本文在充分利用现有ＭＯＣ法优点的基础上，提出一种与其十分相似的频谱分析法。该方法能解析分析水锤诱发作用下输流管道流固耦合振动的频谱特性，并能直接考虑色散和能量耗散对系统运动的影响。使用该方法能在任意激源和各种边界条件下得到管道频谱和色散曲线。文中以英国丹迪大学流体力学实验室的标准试验装置为例，说明了该方法的应用。
Based on the full use of the advantages of the existing MOC method, this paper proposes a spectrum analysis method which is very similar to the method. The method can analyze and analyze the spectral characteristics of the fluid-structure interaction vibration of the transmission pipe under water hammer-induced action, and can directly consider the influence of dispersion and energy dissipation on the system movement. The method can be used to obtain the spectral and dispersion curves of pipes under any excitation source and various boundary conditions. The paper takes the standard test device of fluid mechanics laboratory in Dandy University of UK as an example to illustrate the application of this method.