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DYNAMIC RESPONSE CONTROL OF BUILDING USING MAGNETORHEOLOGICAL DAMPER

机译:磁流变阻尼器对建筑物的动力响应控制

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Safety of a structural system and its occupants during and after an earthquake is extremelyimportant. It is a great challenge for structural engineers to develop technology to protect civil structuresincluding their materials contents and occupants from seismic hazards, as evident from the catastrophiceffects of some of the past earthquake events. Therefore it is important to control the response ofstructure during earthquake to protect the structure during earthquake. Over the past three decadesconsiderable attention has been given to research and development of suitable technologies to controlthe dynamic response of structures under seismic loadings. As a result many vibration control systemsare available at present which can be categorized as Passive, Active, Hybrid, and Semi-active ControlSystems. Among the control systems, semi-active one is considered to be more reliable because in doesnot inject energy in to the structural system and combines the best features of both passive and activecontrol systems. One of the semi-active control devices is Magneto-rheological (MR) damper which usesmagneto-rheological (MR) fluid. MR fluids receive attention as it needs less power to operate, has highyield stress, and not sensitive to impurities. In this paper, performance of MR damper to control thedynamic response of building structure under seismic excitation is studied. A three dimensional FiniteElement Model (FEM) of building structure is developed. MR damper is placed at different possiblelocation to find the best location of damper in the structure, because location of damper placement is alsoa vital issue to control the responses of structure effectively. A detailed parametric analysis has beenconducted to identify the optimal locations and arrangement of the dampers.
机译:在地震期间和之后的结构系统及其占用者的安全 重要的。结构工程师开发技术以保护民用结构是一项巨大挑战 包括从地震危害的材料内容物和占用者,从灾难性中显而易见 一些过去地震事件的影响。因此,控制响应是重要的 地震过程中的结构,保护地震过程中的结构。过去三十年 已经对控制和开发的控制和发展进行了相当大的关注 地震载荷下结构的动态响应。结果许多振动控制系统 目前可用,可作为被动,主动,混合动力和半主动控制进行分类 系统。在控制系统中,半动活跃的人被认为是更可靠的,因为它是 没有注入结构系统的能量,并结合了被动和主动的最佳特征 控制系统。其中一个半主动控制装置是磁流变(MR)阻尼器使用 磁流变(MR)流体。 MR液体会受到关注,因为它需要更少的功率运行,高 屈服应力,对杂质不敏感。在本文中,MR DAMPER的表现控制 研究了地震激发下建筑结构的动态响应。三维有限 建筑结构的元素模型(FEM)开发。 Damper Mr at at不同 位置要在结构中找到阻尼器的最佳位置,因为阻尼器的位置也是如此 有效控制结构响应的重要问题。详细的参数分析已经存在 进行以确定阻尼器的最佳位置和布置。

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