【摘要】 本文研究了含粘性阻尼结构的复振型导数计算问题，将导数计算问题看成是一个简谐激振的响应计算问题，采用多次模态加速法和移位法，导出了复振型导数计算的移位多次模态加速法。该方法具有明确的数学和物理意义，可导出已有的各种计算方法。算例表明本方法计算复振型导数只需用很少几个模态即可保证精度，计算量大大减少。更多还原

【Abstract】 Computing the derivatives of complex mode shapes is regarded as calculating the struc-tural response to harmonic exciting in this paper.Using multiple modal accelerations andshifted-poles,a universal method to calculate the mode shape derivatives has been devel-oped. The method possesses the clear mathematical and physical meaning,and all availablemodal superposition methods would be directly obtained from the proposed method.Numeri-cal examples show that the method is correct and efficient.更多还原