研究了在外部激励作用下,齿轮传动系统参数对系统动力学的影响,为避免齿轮在混沌状态下工作提供了理论依据。它以单自由度直齿圆柱齿轮传动系统为研究对象,建立了非线性动力学模型,在模型中综合考虑了内部激励及和外部激励等因素。利用Runge)Kutta数值计算方法对系统的非线性动力学方程进行了求解,分析了齿轮系统在外部激励作用下,所表现出的周期和混沌运动状态,为齿轮的设计及制造和获得更好的性能提供了理论指导。 The influence of gear drive system parameters on system dynamics under external excitation is studied, which provides a theoretical basis for avoiding the gear working under chaos. It takes a single degree of freedom spur gear transmission system as the research object, and establishes a nonlinear dynamic model, which takes into account factors such as internal excitation and external excitation. The Runge Kutta method is used to solve the nonlinear dynamic equations of the system. The periodic and chaotic motions of the gear system under the external excitation are analyzed. The design and manufacture of the gear and the better Performance provides theoretical guidance.