磁流变阻尼器动态性能分析  

Dynamic Characteristics of Magnetorheological Dampers

作　　者：王炅[1] 黄文良[1] 陆静[1] 

机构地区：[1]南京理工大学机械工程学院,南京210094

出　　处：《南京理工大学学报》2003年第2期122-126,共5页Journal of Nanjing University of Science and Technology

基　　金：南京理工大学青年学者基金资助项目

摘　　要：磁流变材料由悬浮于载体液中的磁化微粒和添加剂构成 ,根据磁流变效应设计的磁流变液体阻尼器具有结构紧凑、功耗低、阻尼力大、动态范围广、响应速度快等特点 ,其阻尼力可以通过调节外加的磁场大小来控制。该文结合具体工程应用从磁流变材料流变特性、动力学、机械学和电磁学的角度出发 ,建立了磁流阻尼器的动力学模型 ,应用该模型可由磁流变阻尼器设计参数得到其动力学特性曲线 ,并与试验结果进行比较 。Magnetorheological (MR) fluids are suspensions of magnetic particles and additives in carrier liquids.The MR dampers have advantages of compactness, low power requirements, wide dynamic ranges and fast reaction.The damping forces of MR dampers can be controlled with a changing magnetic field. Based on MR fluid dynamics, the theory of magnetic field and circuit design and mechanics of MR damper,the dynamic model of MR damper parameters is made for design purposes. By using the numerical model,the dynamic characterictics curves of MR dampers are obtained.The numerical results are compared with experimental data. The results can be used as reference for MR damper design and engineering application.

关 键 词：磁流变体 磁流变阻尼器 动态性能分析 

分 类 号：TB535[理学—物理] O37[理学—声学]