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Fuzzy Hybrid Control of a Smart TMD for Reduction of Wind Responses in a Tall Building  

Kim, Han-Sang (삼성엔지니어링 토목건축팀)
Kim, Hyun-Su (선문대학교 건축학부)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.22, no.2, 2009 , pp. 135-144 More about this Journal
Abstract
Fuzzy hybrid control technique with a smart tuned mass damper(STMD) was proposed in this study for the suppression of wind-induced motion of a tall building. To develop the effective control algorithm for a STMD, skyhook and groundhook control algorithms were employed. Usually, skyhook controller can effectively reduce STMD motion and groundhook controller shows good control performance for the reduction of building responses. In this study, fuzzy hybrid controller, which can determine an optimal weighting factor for combining two controllers in real time, was developed to improve the control performance of conventional hybrid controller using weighted sum approach. A 76-story office building was used as an example structure to investigate the performance of the proposed controller. A magnetorheological(MR) damper was used to develop a STMD and the control performance of STMD was evaluated comparing with the passive and active TMD. The numerical studies show that the control effectiveness of a STMD is significantly superior to that of the conventional TMD. It is also shown that fuzzy hybrid controller can effectively adjust skyhook and groundhook control algorithms and reduce both responses of STMD and building.
Keywords
fuzzy hybrid control; smart tuned mass damper; skyhook; groundhook; MR damper;
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