研究钟表时间引信齿轮传动系统扭振固有频率的设计灵敏度问题，建立了齿轮传动系统动力学控制方程，推导了固有频率对引信传动系统设计参数的灵敏度公式，其参数是齿轮轴的扭转刚度，齿轮和轴上零件的转动惯量以及各级传动比，为引信齿轮传动系统动力学设计提供了方法。 In this paper, the design sensitivity of the natural frequency of torsional vibration of the clock gear fuze transmission system is studied. The governing equations of the gear transmission system dynamics are established. The sensitivity formula of the natural frequency to the design parameters of the fuze transmission system is deduced. The parameters are the torsional stiffness of the gear shaft, And the moment of inertia of the parts on the shaft as well as the transmission ratio at all levels provide a method for the dynamic design of the fuze gear transmission system.