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Seismic response control using electromagnetic inertial mass dampers

机译:使用电磁惯性质量阻尼器的地震响应控制

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This paper presents a new type of electromagnetic damper with rotating inertial mass that has been developed to control the vibrations of structures subjected to earthquakes. The electromagnetic inertial mass damper (EIMD) consists of a ball screw that converts axial oscillation of the rod end into rotational motion of the internal flywheel and an electric generator that is turned by the rotation of the inner rod. The EIMD is able to generate a large inertial force created by the rotating flywheel and a variable damping force developed by the electric generator. Device performance tests of reduced-scale and full-scale EIMDs were undertaken to verify the basic characteristics of the damper and the validity of the derived theoretical formulae. Shaking table tests of a three-story structure with EIMDs and earthquake response analyses of a building with EIMDs were conducted to demonstrate the seismic response control performance of the EIMD. The EIMD is able to reduce story drifts as well as accelerations and surpasses conventional types of dampers in reducing acceleration responses.
机译:本文提出了一种新型的具有旋转惯性质量的电磁阻尼器,该电磁阻尼器已被开发用于控制地震结构的振动。电磁惯性质量阻尼器(EIMD)由将杆端的轴向振动转换为内部飞轮的旋转运动的滚珠丝杠和通过内部杆的旋转而转动的发电机组成。 EIMD能够产生由旋转飞轮产生的大惯性力和由发电机产生的可变阻尼力。进行了缩小规模和全规模EIMD的设备性能测试,以验证阻尼器的基本特性以及所推导的理论公式的有效性。进行了具有EIMD的三层结构的振动台测试以及具有EIMD的建筑物的地震响应分析,以证明EIMD的地震响应控制性能。 EIMD能够减少故事漂移和加速度,并在减少加速度响应方面超过传统类型的阻尼器。

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