The topography of gear meshing interfaces is one of the key factors affecting the dynamic characteristics of the gear transmission system. In order to obtain the contact characteristics of meshing gear pair with different surface micro-topographies, an interface feature model and a tribo-dynamics coupling model for the gear system are proposed in this paper. The effects of the gear tooth surface micro-topography on the oil film distribution, contact damping and friction are considered. The time-varying meshing stiffness and the static transmission error are included in the abovementioned models. An exemplary gear pair is analyzed using the proposed models to investigate the influence of the surface micro-topography on the dynamic characteristics of gear system under different micro-topographies and input torque conditions. Simulation results show that the effects of gear tooth micro-topography on the gear dynamic responses (including the friction and the vicious damping at the gear meshing interface and the vibration in the direction of offline of action) are highly dependent on the regularity of tooth surface. The vibration and noise can be significantly controlled by manufacturing a regular gear tooth profiles instead of random profiles.

齿轮啮合界面的形貌是影响齿轮传动系统动态特性的关键因素之一。为了获得不同表面微观形貌的啮合齿轮副的接触特性，提出了齿轮系统的界面特征模型和摩擦动力学耦合模型。考虑了齿轮齿表面微观形貌对油膜分布，接触阻尼和摩擦的影响。时变啮合刚度和静态传递误差都包含在上述模型中。使用提出的模型分析示例性齿轮对，以研究表面微观形貌对齿轮系统在不同微观形貌和输入扭矩条件下的动力特性的影响。仿真结果表明，齿轮微形貌对齿轮动力响应的影响（包括齿轮啮合界面处的摩擦和恶性阻尼以及作用离线方向的振动）在很大程度上取决于齿面的规则性。 。通过制造规则的齿轮齿形而非随机齿形，可以显着控制振动和噪声。