Abstract
The design concept and procedure for tuned mass dampers (TMDs) have been extensively investigated through numerical simulation analyses and experimental tests. Sophisticated three-dimensional building models were developed to examine the optimum installation location in elevation and in plane, number and movement direction of the TMDs with the consideration of translation-torsion coupling and soil-structure interaction effects. Analytical and empirical formulas were also derived to determine the optimal parameters of TMD. It is well recognized that the performance of a TMD is sensitive to the slight deviation of frequency ratio between the TMD and the structure. Multiple tuned mass dampers (MTMDs) were proposed to reduce this detuning effect. It is also recognized that TMD’s performance relies on its large stroke which may not be allowed due to the limitation of space and vibration components. The authors presented a two-stage optimum design procedure for MTMDs with limitation of their strokes. New invention patents both in Taiwan and in USA have been granted for the MTMD device.
Published Version
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