Bandivadekar, T., Jangid, R. (2010). Dual-layer Multiple Tuned Mass Dampers for Vibration Control of Structures. International Journal of Advanced Structural Engineering, 2(2), 91-113.
Tanuja P. Bandivadekar; Radhey S. Jangid. "Dual-layer Multiple Tuned Mass Dampers for Vibration Control of Structures". International Journal of Advanced Structural Engineering, 2, 2, 2010, 91-113.
Bandivadekar, T., Jangid, R. (2010). 'Dual-layer Multiple Tuned Mass Dampers for Vibration Control of Structures', International Journal of Advanced Structural Engineering, 2(2), pp. 91-113.
Bandivadekar, T., Jangid, R. Dual-layer Multiple Tuned Mass Dampers for Vibration Control of Structures. International Journal of Advanced Structural Engineering, 2010; 2(2): 91-113.
Dual-layer Multiple Tuned Mass Dampers for Vibration Control of Structures
Department of Civil Engineering, Indian Institute of Technology Bombay, Mumbai, India
Abstract
The performance of dual-layer multiple tuned mass dampers (DL-MTMD) with uniformly distributed natural frequencies is investigated. The DL-MTMD consists of one large tuned mass damper (L-TMD) and an arbitrary number of small tuned mass dampers (S-TMD). The primary structure is represented as a single degree-of-freedom system which corresponds to a specific vibration mode to be controlled in a real structure. The response of the structure with DL-MTMD is studied under harmonic excitation acting at the primary main system. The performance criterion used for assessing the optimum parameters and effectiveness of the DL-MTMD is selected as the minimization of the maximum dynamic magnification factor (DMF) of the displacement response of main structure. Two dynamic models of the DL-MTMD are proposed in the present study. The Model-I consists of S-TMD having the same mass and damping ratio and uniform distribution of natural frequencies. The Model-II consists of S-TMD with same stiffness and equal damping ratio and uniform distribution of natural frequencies. The comparative performance of the two models indicated that the performance of Model-II in comparison with Model-I is superior with respect to reduction in the displacement DMF.
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