【摘要】 本文把求非线性转子－轴承系统瞬态响应的分块Ｎｅｗｍａｒｋ方法与打靶法结合求系统的周期解，该方法利用了分块Ｎｅｗｍａｒｋ方法求解速度快的优点和Ｊａｃｏｂｉ矩阵求解时每步不需迭代的特点。本文首先给出周期解的求解公式，然后用一个算例，讨论了周期解的稳定性及失稳后的分岔行为。更多还原

【Abstract】 A new method, combined shooting method with partitioned Newmark method, is proposed for theperiodic response of nonlinear rotor-bearing systems. This method makes use of the advantage of parti-tioned Newmark method, which is fast for solving transient response of nonlinear rotor-bearing sys-tems.In this paper, the formulae of the method are presented. A numerical example is given to calcu-late the periodic response and Floquet multipliers and analyses the bifurcation of this system.更多还原