摩擦片沟槽对液体黏性传动影响的数值模拟  

Numerical Simulation of Influence of Friction Disc Groove on Hydro-Viscous Drive

作　　者：王凯[1] 孟庆睿[1] 王健[1] 李晓阳[1] 

机构地区：[1]中国矿业大学机电工程学院,江苏徐州221116

出　　处：《润滑与密封》2014年第4期23-27,33,共6页Lubrication Engineering

基　　金：国家自然科学基金项目(51075396)

摘　　要：为揭示液体黏性传动中摩擦片表面沟槽对传动性能的影响机制,根据流体动力学原理,结合油膜承载力和传递扭矩的计算模型,在建立油膜物理模型的基础上,运用FULENT软件对不同宽度、深度和条数沟槽下的油膜承载力、传递扭矩及油膜温升进行数值模拟。结果表明:油膜承载力和传递扭矩均随沟槽宽度和深度的增加而减小;沟槽条数越多,油膜承载力越大,传递扭矩呈近似线性降低;油膜温度沿径向递增,在油膜流动速度不变情况下,通过增大沟槽的宽度、深度和条数可以有效减缓传动过程中油膜的温升。To reveal the mechanism of influence of friction disc surface groove on transmission performance during hydro-viscous drive, the calculation model of oil film bearing capacity and transmitted torque was established based on the principle of fluid dynamics, and the oil film bearing capacity, transmitted torque and temperature rise of the friction disc with different width, depth and number of grooves were numerically simulated by using software FLUENT based on the established oil film physical model. The results show that with the increase of width and depth of grooves, both of oil film bearing capacity and transmitted torque are decreased, and with the increase of the number of grooves, the oil film bearing capacity is increased and the transmitted torque is decreased linearly. The oil film temperature rise is increased gradually along the radial direction, and it can be effectively reduced by increasing the width, depth and number of grooves at constant oil film speed during transmission process.

关 键 词：液体黏性传动 摩擦片沟槽 油膜承载力 传递扭矩 温升 

分 类 号：TH117.1[机械工程—机械设计及理论]