液体黏性联轴器盘片槽边型式对驼峰现象的影响

研究了液体黏性联轴器内盘片槽边型式对驼峰现象的影响,对提高四轮驱动汽车性能有指导作用.借助FLUENT软件模拟内盘片上轴向力差与内盘片倒角角度、倒角高度和内盘片在相邻外盘片间的位置的关系.结果表明内盘片槽边倒角角度为30°.倒角高度为盘片厚度时,内盘片上所受轴向力差最大,容易促使驼峰现象发生;内盘片的位置对盘片的运动方向没有影响;倒角后内盘片发生驼峰现象所需的转速差小,并且实验验证了盘片运动方向与理论分析一致.

Influence of Slot Type of Inner Plates in Liquid Viscous Coupling on Hump Phenomenon

In order to investigate the influence of slot type of inner plate in liquid viscous coupling on hump phenomenon, the relations between the axial force difference on inner plates and the factors such as plate beveled edge, beveled edge height, the position of inner plate were simulated by the FLUENT software. The results showed that the axial force difference on inner plates got its maximum value and the hump phenomenon could be induced easily when the plate belveled edge angle was 30 degree and its height equaled to the thickness of plate. According to the experimental results, the hump phenomenon would occur at a lower differential rotational speed when the edges of inner plates were beveled. Concerning the moving direction of inner plates with beveled edge during hump inducing period, the experimental results showed good agreement with theoretical analysis.