磁流变耗能器及其性能

英文篇名：MAGNETORHEOLOGICAL FLUID DAMPERS AND THEIR PROPERTIES
中文刊名：地震工程与工程振动
英文刊名：EARTHQUAKE ENGINEERING AND ENGINEERING VIBRATION
作者：欧进萍 ; 关新春
英文作者：Ou Jingping Guan Xinchun (School of Building Engineering ; Harbin University of Architecture and Civil Engineering ; Harbin ; 150008)
中文关键词：磁流变液 ; 耗能器 ; 恢复力 ; 阻尼系数
英文关键词：Magnetorheological fluid damper ; restoring force ; damping coefficientt
出版日期：1998-09-28
机构：哈尔滨建筑大学建筑工程学院
年：1998
期：03
出版单位：地震工程与工程振动

摘要

磁流变液（ＭＲ）是一种智能材料，它能够在强磁场的作用下从牛顿流体变化为粘塑流体。用磁流变液制作的耗能器装置简单、体积小、能耗小、可连续可逆变化。是实现半主动控制的理想控制元件。本文介绍了磁流变液的材料特征，建立了磁流变耗能器的恢复力简化模型；根据磁流变液耗能器的特点，提出了制作磁流变耗能器时参数设计的基本要求；最后，利用等效线性化方法，提出了磁流变耗能器总阻尼系数的计算方法，并且比较了其中的粘性阻尼系数和库仑阻尼系数的比值关系。
Magnetorheological(MR)fluid is a kind of smart material under the high magnetic field It can be transformed from Newton fluid into viscoplastic solid The dampers made by MR fluid possess the virtue of simple device and small bulk It requires few power and can continually change its state It is a kind of ideal controldevice to reach semi active control In this paper,the character of MR fluid is introduced and the predigested calculating model is established According to the character of MR damper the basic parameter requirement for making MR damper is presented Finally,using the method of equivalent linearization,the method for calculating the total damping coefficient of damper is presented and the relation of coulomb damping coefficient to viscous damping coefficient is studied

引文

1G．W．Housner，L．A．Bbergman，T．K．Caugheyetal．，StructuralControl：Past，Present，andFuture，J．Engrg．Mech．，Vol．123，No．9，940～943，19972周鲁卫，潘胜，乔皓洁．电流变液研究进展及最新动态．力学进展，Vol．26，No．2，230～236，19963瞿伟廉，项海帆．ER智能材料在结构振动控制中的应用．地震工程与工程振动，Vol．18，No．3，19984S．J．Dyke，B．F．SpencerJr．M．K．SainandJ．D．Carlson．ModelingandControlofMagnetorheologicalDampersforSeis－micResponseReduction．SmartMater．Struct．Vol．5，565～575，19965MarkR．Joly，J．DavidCarlsonetal．，AModeloftheBehaviourofMagnetorheologicalMaterials，SmartMater．Struct．Vol．5，607～614，19966NicosMakris，ScotA．Burton，andDouglasP．Taylor．ElectrorhelogicalDamperwithAnnularDuctsforSeismicProtec－tionApplications，SmartMater．Struct．Vol．5，551～564，19967M．J．Brennan，M．J．Day，andR．J．Randal．AnElectrorheologicalFluidVibrationDamper，SmartMater．Struct．，Vol．4，p83～92，1995