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首页> 外文期刊>Journal of Tribology >Three-Dimensional Thermohydrodynamic Analysis of a Wet Clutch With Consideration of Grooved Friction Surfaces
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Three-Dimensional Thermohydrodynamic Analysis of a Wet Clutch With Consideration of Grooved Friction Surfaces

机译：考虑沟槽摩擦表面的湿式离合器三维热流体动力学分析

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摘要

A model is developed to investigate the effect of radial grooves and waffle-shape grooves on the performance of a wet clutch. Three-dimensional formulation of the governing equations, boundary conditions, and numerical solution scheme are presented for modeling the thermal aspects of the engagement process in a wet clutch. The thermal model includes full consideration of the viscous heat dissipation in the fluid as well as heat transfer into the separator, the friction material, and the core disk. The convective terms in the energy equations for the oil as well as the heat conduction equations in the bounding solids are properly formulated to determine the temperature fields corresponding to the domains between grooves. Roughness, centrifugal force, deformability, and permeability of the friction material with grooves are taken into account. The effects of groove geometry such as groove depth, grooved area, and number of grooves on the engagement characteristic of a wet clutch are investigated. It is also shown that the thermal effects in a wet clutch influence the engagement time and the torque response and should be included in the analytical studies.
机译：开发了一个模型来研究径向凹槽和华夫形凹槽对湿式离合器性能的影响。提出了控制方程，边界条件和数值求解方案的三维公式，用于对湿式离合器中接合过程的热方面进行建模。热模型包括充分考虑流体中的粘性散热以及热量向分离器，摩擦材料和芯盘的传递。对油的能量方程式中的对流项以及边界固体中的导热方程式进行适当公式化，以确定与凹槽之间的区域相对应的温度场。考虑到具有沟槽的摩擦材料的粗糙度，离心力，可变形性和渗透性。研究了沟槽几何形状（例如沟槽深度，沟槽面积和沟槽数量）对湿式离合器的接合特性的影响。还显示出湿式离合器中的热效应会影响接合时间和扭矩响应，应纳入分析研究中。

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