The rapid development of electric drives technology presents new challenges in the domain of vibration and noise suppression within gear trains. Dynamics modeling serves as a crucial method for studying vibration and noise; however, a deficiency exists in adequately considering the interaction between tribology and the dynamics of gear drives in current research endeavors. This article proposes a unified tribo-dynamic approach to facilitate a more realistic and accurate linkage analysis of transient mixed lubrication, friction, flash temperature, stiffness, backlash, and dynamics in gear drives. The TPMD approach is proposed to reduce convergence elapsed time. The meshing stiffness and backlash under transient mixed lubrication are developed and used as additional crucial bridges for the interactions in tribo-dynamic, supplementing the traditional consideration of friction. Gear vibration tests are carried out in both LOA and OLOA directions to validate the accuracy of the proposed model. Comparative analyses with conventional models highlight the advancements of the proposed model. The lubricated meshing stiffness, influenced by the combined effects of dynamics and tribology, exhibits characteristic fluctuations and is significantly lower than the Hertzian meshing stiffness. Tribological characteristics in tribo-dynamic differ notably from quasi-static conditions due to gear vibrations. The proposed tribo-dynamic model reveals higher DTE and vibration in the LOA direction compared to traditional dynamics. The intricate effects of friction, meshing stiffness, and backlash on vibration depend on factors like surface roughness, torque, and rotational speed.

中文翻译：

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瞬态混合润滑和非线性动力学的统一齿轮摩擦动力学及其实验验证


电驱动技术的快速发展给齿轮系内的振动和噪声抑制领域带来了新的挑战。动力学建模是研究振动和噪声的重要方法；然而，当前的研究工作在充分考虑摩擦学和齿轮传动动力学之间的相互作用方面存在缺陷。本文提出了一种统一的摩擦动力学方法，以促进对齿轮传动中的瞬态混合润滑、摩擦、闪蒸温度、刚度、齿隙和动力学进行更真实、更准确的联动分析。 TPMD 方法的提出是为了减少收敛时间。开发了瞬态混合润滑下的啮合刚度和齿隙，并将其用作摩擦动力相互作用的附加关键桥梁，补充了传统的摩擦考虑。在LOA和OLOA两个方向上进行了齿轮振动测试，以验证所提出模型的准确性。与传统模型的比较分析突出了所提出模型的进步。润滑啮合刚度受动力学和摩擦学综合作用的影响，表现出特征波动，并且明显低于赫兹啮合刚度。由于齿轮振动，摩擦动态中的摩擦学特性与准静态条件显着不同。与传统动力学相比，所提出的摩擦动力学模型揭示了 LOA 方向上更高的 DTE 和振动。摩擦、啮合刚度和间隙对振动的复杂影响取决于表面粗糙度、扭矩和转速等因素。