PARAMETRIC STUDY AND SIMPLIFIED DESIGN OF TUNED MASS DAMPERS

This paper summarizes the results of a parametric study performed to e nhance the understanding of some important characteristics of tuned ma ss dampers (TMD), The effect of detuning on some of the TMD parameters on the performance is studied using steady-state harmonic excitation analysis and time-history analysis, The El Centro and Mexico excitatio ns are used for time-history analysis. The effects of tuning criteria and significance of numerical tuning are also studied, The corresponde nce between the design of a TMD for a SDOF structure and a certain mod e of a MDOF structure is drawn to simplify TMD design to control a sin gle mode of a multimodal structure, An example is given to illustrate the design procedure, Investigations are made regarding controlling mu ltiple structural modes using multi-tuned mass dampers (MTMD). (C) 199 7 Elsevier Science Ltd.