柴燃联合传动系统结构复杂，负载工况多变，在工况切换过程中存在明显的瞬态冲击情况，容易影响传动系统的长期稳定运行。为此，本文基于AMEsim平台对同步自动离合器、摩擦离合器进行了零件级的动力学建模，并连接齿轮啮合模型形成柴燃联合传动系统模型，考虑摩擦、碰撞等非线性因素仿真分析在离合器接合瞬态过程中齿轮系统转速、扭矩等参数的波动情况，并通过优化离合器的相关参数以减小齿轮系统在这种接合瞬态过程中的响应波动。系统仿真结果表明，自动同步离合器接合时由于棘轮棘爪机构碰撞以及螺旋同步机构扭矩瞬态变化导致传动系统出现扭矩波动，燃机工况下传动系统最大扭矩波动达到56040Nm；摩擦离合器接合时，在同步瞬间离合器后端加速度迅速到零，在转动惯量作用下产生扭矩波动，最大扭矩波动达到74500Nm。为控制扭矩波动，通过优化同步自动离合器螺旋同步机构导程角以及摩擦离合器液压缸油压，同步自动离合器和摩擦离合器的扭矩波动分别减小12.4%与24.4%，有效提高了柴-燃联合传动系统运行平稳性。

The transmission structure of CODOG transmission system is complicated and the load conditions are varied, and there is obvious transient impact in the process of working condition switching, which is easy to affect the long-term stable operation of the transmission system. For this reason, this paper builds a parts-level dynamic model of the transmission system based on AMESim platform, further considers nonlinear factors such as friction and collision on the basis of the concentrated mass model, calculates the transient changes of the speed and torque of the clutch and gear system in the transmission system during startup and loading, and analyzes the generation mechanism of transient impact. The impact response is reduced by optimizing the relevant parameters. The results show that the torque fluctuation of the transmission system occurs due to the collision of the ratchet pawl mechanism and the transient change of the torque of the spiral synchronous mechanism during the engagement of the automatic synchronous clutch, and the maximum torque fluctuation of the transmission system reaches 56040Nm under the gas turbine working condition. When the friction clutch is engaged, the acceleration at the rear end of the clutch rapidly reaches zero in the instant of synchronization, and torque fluctuation is generated under the action of moment of inertia. The maximum torque fluctuation reaches 74500Nm. Finally, by reducing the lead angle of the helical synchronous mechanism of the synchronous automatic clutch and adjusting the hydraulic pressure curve of the friction clutch, the torque fluctuation of the synchronous automatic clutch and the friction clutch are reduced by 12.4% and 24.4% respectively, which effectively improves the stationarity of the CODOG Transmission