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利用等效线性化法将多转子－支承系统中的非线性元件逐次换为具有等效参数的线性元件，借助Ｒｉｃｃａｔｉ传递矩阵法稳定空间边界值问题，提出了分析多转子－支承系统偏置同步响应的等效线性化—Ｒｉｃｃａｔｉ传递矩阵迭代法。实例计算了装有中介轴挤压油膜阻尼器的双转子发动机的偏置同步响应。结果表明本法稳定性好、传递矩阵维数低、所需算机容量和机时小，明显优于模态综合法［１］，特别适合于分析含有强非线性元件的大型多转子－支承系统的偏置同步响应。
Equivalent linearization method is used to change non-linear elements of multi-rotor-support system into linear elements with equivalent parameters successively. With Riccati transfer matrix method to stabilize space boundary value problem, Equivalent Linearization of Response - Riccati Transfer Matrix Iteration. An example is given to calculate the bias synchronization response of a twin-rotor engine equipped with an intermediate shaft squeeze film damper. The results show that this method has good stability, low transfer matrix dimension, small computer capacity and small machine time, which is obviously superior to the modal synthesis method [1]. It is especially suitable for the analysis of large multi-rotor-bearing systems with strong nonlinear elements The system’s offset synchronization response.