提高液粘调速离合器流-固-热耦合动态调速特性的摩擦副设计方法研究

项目名称： 提高液粘调速离合器流-固-热耦合动态调速特性的摩擦副设计方法研究

项目编号： No.51275039

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 机械、仪表工业

项目作者： 姚寿文

作者单位： 北京理工大学

项目金额： 80万元

中文摘要： 工业节能是我国能源领域的优先主题。液粘调速离合器是实现矿山、电厂大量应用的风机和水泵节能的有效途径。然而，实际应用时液粘调速离合器的转速稳定性和调速范围成为制约该设备节能效果的主要瓶颈。本项目以液粘调速离合器摩擦副为研究对象，对摩擦副流-固-热多场耦合的流场特征、动态调速特性和设计方法进行基础科学研究。具体内容包括：理论分析和计算摩擦副承载特性、温度场特性；研究摩擦副流-固-热多场耦合的计算流体动力学建模方法，分析摩擦副多场耦合的热-弹稳定性，建立调速过程的动态转矩模型；研究新型摩擦副结构多学科拓扑设计方法；结合试验，建立基于摩擦副结构参数的流-固-热多场耦合摩擦副动态调速特性预测模型，实现新型摩擦副的设计。本项目旨在揭示摩擦副流-固-热耦合的动态调速特性，提高转速稳定性和调速范围，实现液粘调速离合器摩擦副设计和性能预测，为研制高效节能的液粘调速离合器奠定理论和技术基础。

中文关键词： 液粘传动；动态调速特性；热弹稳定性；工况区间；优化设计

英文摘要： Industrial energy conservation is the priority of energy field in China. Hydroviscous Drive (HVD in short) is the efficient way of energy-saving in fan and pump which are widely used in mine and power plants.However, the speed stability and range of HVD are the main bottleneck of energy-saving efficiency. The frictional pair of HVD is used as the research subject, in which the fluid characteristic of fluid-solid-thermal coupling, dynamic characteristic of speed modulation and design method are set as the basic scientific research. The detailed research includes: firstly, analyze and simulate the frictional pair's characteristics of load capacity and temperature field; secondly, the numerical and simulation models of fluid-solid-thermal coupling are built, which are used to analyze the thermal-elastic stability and found the dynamic torque model of speed modulation,then the structural design method of new frictional pair is done with the multi-disciplinary and topology optimization based on the dynamic characteristics; thirdly, the performance prediction model is built with structural parameters of frictional pair based on the fluid-solid -thermal model and the result of test, which are used to realize the design of new frictional pair. The project aims to reveal the dynamic speed modulation characteristic of fri

英文关键词： Hydro-viscous drive；dynamic speed modulation；thermo-elastic stability；working condition；optimal design