用算符分解算法(AOM)得到了系统的近似解析解，并研究了传动比和时变啮合刚度对拍击门槛转速的影响。

A-operator method (AOM) is used to study the influence of the speed ratio and time varying meshing stiffness on rattling threshold speed of the gear system.

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用算符分解算法(AOM)研究了扭矩波动和时变啮合刚度对拍击门槛转速的影响。

A-operator method (AOM) is used to study the influence of the torque fluctuation and time-varying meshing stiffness on rattling threshold speed of the gear system.

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文中详细地讨论了刚度变量法中将结构分解设计的方法，其计算简捷，选值灵活，可由熟悉的结构组成复杂结构。

By means of the structure decomposed method, its calculation is simple and data selection is flexible so that a complex structure can be formed from those familiar structures.

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