Because of the meshing stiffness of a gear pair, the governing equation denotes a linear dynamic system with periodic time-varyingcoefficient.
由于齿轮副啮合刚度的影响,动力学方程序代表了一个具有时变系数的线性动力系统。
2
By the discretization of spatial variable in the equation, a third-order differential system of equations containing periodic time-varyingcoefficient is derived.
采用微分求积法对方程中的空间变量进行离散,得到仅含有时间变量的三阶周期系数微分方程组。
3
The results showed that the change of time-varying parameters (coefficient) in dynamic AR model has a regularity. Its increments are piled up by some simple period functions.