Application of Phase Control for Optimal Design of Tuned Mass Dampers
Date Issued
2011
Date
2011
Author(s)
Lai, Yong-An
Abstract
The present study aims at developing an optimal design of linear passive tuned mass dampers (PTMD) and proposing the phase control algorithm for semi-active tuned mass dampers (SATMD) and active tuned mass dampers (ATMD). At first, by minimizing the sum of square of structural displacement response, three kinds of optimal design methods are proposed for PTMD - the iteration method, the diagram method and the optimal design formulae. Then, phase control algorithm for SATMD and ATMD is proposed. The principle of phase control algorithm is to keep the TMD response to maintain 90° phase lag to the structure. Finally the PTMD, SATMD and ATMD are, respectively, implemented on the structure of Taipei 101 which is simplified to single degree of freedom and subjected to the design wind forces. The numerical simulation result shows that three kinds of optimal design methods for PTMD may suppress the vibration of structure. Moreover, by the phase control algorithm, SATMD and ATMD not only have better performance than the optimal PTMD, but also improve the robustness. Therefore, even without the optimal design procedure, SATMD and ATMD both are more effective than the optimal PTMD.
Subjects
Tuned Mass Damper (TMD)
optimal design formulae
structural control
sem-acitve control
active control
phase control
Type
thesis
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