中文摘要：

湿式离合器是履带式车辆中的重要部件,对控制车辆输出动力的大小起着至关重要的作用。由于车辆的使用功率较大,工作环境复杂,换挡频繁,液压油的温度随着离合器结合次数的增加会发生变化,从而造成液压油液黏度的变化,导致湿式离合器充油特性的变化。

英文摘要：

The wet clutch is an important part in tracked vehicle,and it plays an important role in controlling the amount of the output torque. As the vehicle with big power usually works in complex environment and shifts frequently,the temperature of the oil changes with the multiple frictions of the clutches,and then the viscosity of the oil changes,which results in the change of oil charge characteristic.