智能型磁流变式汽车双质量飞轮扭振减振器的设计理论与应用研究

项目名称： 智能型磁流变式汽车双质量飞轮扭振减振器的设计理论与应用研究

项目编号： No.51205158

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 机械工程学科

项目作者： 陈志勇

作者单位： 吉林大学

项目金额： 25万元

中文摘要： 随着发动机扭矩的不断增大和柴油机的广泛应用，传动系扭振在整车振动中占的比例越来越大。双质量飞轮扭振减振器（DMF）能够较好的衰减传动系扭振，近年来成为研究的热点。扭转刚度和阻尼是扭振减振器的两个主要性能参数，阻尼值的大小决定减振器的隔振效率，但是目前鲜有对DMF阻尼的研究，没有成熟的阻尼选择标准。本项目拟从DMF阻尼控制入手，把磁流变液体引入DMF的阻尼装置，对磁流变式DMF减振器设计理论与隔振原理进行研究。首先建立磁流变DMF减振器力学参数模型，通过试验手段和液固耦合非线性有限元方法对力学参数进行识别与研究。然后建立应用磁流变DMF的传动系-整车的系统模型，设计有效控制策略对磁流变DMF减振器系统进行控制仿真与优化。最后试制样件与控制系统硬件，装车进行整车试验与分析。通过本项目的研究，提出智能型磁流变式双质量飞轮的设计理论与方法。

中文关键词： 双质量飞轮；磁流变；汽车传动系；扭振控制；

英文摘要： Because of engine torque increasing and the wide application of the diesel engine, driveline torsional vibration plays an increasingly important role in the vehicle vibration. Dual mass flywheel torsional damper (DMF) can isolate driveline torsional vibration better than Traditional torsional damper. So the research of DMF becomes a hotspot in recent years. Torsional stiffness and damping are two main performance parameters of the DMF, and the efficiency of the shock isolation of DMF is decided by the damping value. But at present there is little research on DMF damping, no mature damping selection criteria. The project is planned to start from DMF damping control, to improve the DMF damping device with magneto-rheological fluid, and to study the design theory and the isolation principle of magneto-rheological-DMF. First we build the lumped parameter model of the Magneto-rheological-DMF, and identify and study the mechanical parameters by experimental means and finite element method. And then we establish the transmission-vehicle system model which contains the Magneto - rheological DMF, and design an effective control strategy for Magneto-rheological-DMF damper system to control torsional vibration. Last we manufacture the Magneto-rheological-DMF sample and hardware of control system, and do overall studies by

英文关键词： Dual-mass flywheel；Magneto-rheological；Automobile transmission system；Torsional vibration control；