As transient and time lag deformations occur alternately and influence each other for viscoelastic materials of dynamically loaded journal bearings, the time lag deformation per unit time is defined based on the finite element stiffness equation and the standard linear solid model, accumulating it by loop and superposing transient deformation to obtain actual deformation at every moment. Thereby, a novel temporal association deformation equation of bearing is constructed. It is used to improve the film thickness calculation method of the traditional micro elastohydrodynamic lubrication (MEHD) model. Finally, a novel transient and time lag deformation alternating-coupling micro elastohydrodynamic lubrication (TTL-MEHD) model is established. The comparison between lubrication performance parameters calculated by the new model and the MEHD model under the eccentric motion of the journal proves the new model is correct, and can effectively analyze the knocking and rough rubbing characteristics at the early stage of bearing instability. The new model is implemented to explore the effect of the time lag degree of material deformation on mixed lubrication performance. The application of the new model in connecting rod bearing of internal-combustion engine proves that it can effectively compensate for the impact lag deviation caused by the complete elasticity assumption.

由于动载滑动轴承的粘弹性材料瞬态变形和时滞变形交替发生并相互影响，单位时间时滞变形根据有限元刚度方程和标准线性实体模型定义，循环累加叠加瞬态变形来获取每一时刻的实际变形。从而构建了一个新的轴承时间关联变形方程。用于改进传统微弹性流体动力润滑（MEHD）模型的油膜厚度计算方法。最后，建立了一种新型的瞬态和时滞变形交替耦合微弹性流体动力润滑（TTL-MEHD）模型。新模型计算出的润滑性能参数与轴颈偏心运动下MEHD模型计算的润滑性能参数对比证明新模型是正确的，可以有效分析轴承失稳早期的爆震和粗磨特性。实施新模型，探索材料变形时滞度对混合润滑性能的影响。新模型在内燃机连杆轴承上的应用证明，它可以有效补偿完全弹性假设引起的冲击滞后偏差。实施新模型，探索材料变形时滞度对混合润滑性能的影响。新模型在内燃机连杆轴承上的应用证明，它可以有效补偿完全弹性假设引起的冲击滞后偏差。实施新模型，探索材料变形时滞度对混合润滑性能的影响。新模型在内燃机连杆轴承上的应用证明，它可以有效补偿完全弹性假设引起的冲击滞后偏差。