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Paper Information

Journal:   ASIAN JOURNAL OF CIVIL ENGINEERING (BUILDING AND HOUSING)   JUNE 2008 , Volume 9 , Number 3; Page(s) 251 To 259.
 
Paper: 

PERFORMANCE OF MAXWELL DAMPER BASED MULTIPLE TUNED MASS DAMPERS

 
 
Author(s):  LI C.*
 
* DEPARTMENT OF CIVIL ENGINEERING, SHANGHAI UNIVERSITY, NO. 149 YAN CHANG ROAD, SHANGHAI 200072, P.R. CHINA
 
Abstract: 

In practical applications, it is difficult to link dashpot absolutely rigidly between the structure and the mass blocks of the multiple tuned mass dampers (MTMD). In order to cope with this practical issue, Maxwell damper based multiple tuned mass dampers (referred to as the MD-MTMD) have been presented for attenuating the response of structures excited by the ground acceleration. By resorting to the formulated transfer functions of the MD-MTMD structure system, the dynamic magnification factors (DMF) are then defined of the MDMTMD structure system. The criterion for the optimum searching can thus be selected as the minimization of the minimum values of the maximum DMF (min. min. max. DMF).
Employing this criterion, the effects of the normalized relaxation time constant (NRTC) are investigated on the optimum parameters and effectiveness of the MD-MTMD. Likewise, the effects of the RTC on the stroke of the MD-MTMD are estimated in terms of maximizing the dynamic magnification factors (DMF) of each MD-TMD in the MD-MTMD. The numerical results have indicated that the MD-MTMD is a feasible solution for the practical issue mentioned above of the traditional MTMD.

 
Keyword(s): DAMPING, MULTIPLE TUNED MASS DAMPERS, MAXWELL DAMPER BASED MULTIPLE TUNED MASS DAMPERS, DYNAMIC MAGNIFICATION FACTORS, NORMALIZED RELAXATION TIME CONSTANT, OPTIMALITY
 
References: 
 
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