A Semi-Active H2 -Optimal Control of a Seismically Excited Building Using MR Dampers
Publish place: 14th Annual Conference of Mechanical Engineering
Publish Year: 1385
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
ISME14_528
تاریخ نمایه سازی: 1 فروردین 1386
Abstract:
A semi-active control system can provide similar performance as active control systems, with a lower cost, and a safer and more practical feasibility under destructive earthquakes. In this stuy, Magneto-rheological (MR) dampers are considered for semi-active control of a 20-story building, because they are reliable, inexpensive, relatively insensitive to temperature fluctuations, and require a minimal power consumption. Based on a previously existing model of the building, For this purpos, an active H2/LQG control strategy is designed first, and then converted to a semi-active one, using the clipped-optimal control algorithm, which incorporates the semi-active dampers in the closed-loop control system. The results reported herein indicate that the designed semi-active control system is quite effective in reducing the seismic response of the building. Finally, a comparison is made with the results obtained by other researchers.
Keywords:
Building Structure – Semi active Control - MR damper - Clipped Optimal Control , H2/LQG
Authors
Rokni Damavandi Taher
Graduate Student Mechanical Engineering Department, Iran University of Science and Technology, Narmak, Tehran
Davaie Markazi
Associate Professor Mechanical Engineering Department, Iran University of Science and Technology, Narmak, Tehran
Hayati
Graduate Student Mechanical Engineering Department, Iran University of Science and Technology, Narmak, Tehran
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