Semi-active TMD with piezoelectric friction dampers in floor vibration control

2006 ◽  
Author(s):  
Guoliang Jiang ◽  
Linda M. Hanagan
Keyword(s):  
Vibration Control ◽  
Friction Dampers ◽  
Floor Vibration

Optimal Placement of Actuators and Sensors for Floor Vibration Control

2000 ◽  
Vol 126 (12) ◽  
pp. 1380-1387 ◽  
Author(s):  
Linda M. Hanagan ◽  
Ernest C. Kulasekere ◽  
Kirthi S. Walgama ◽  
Kamal Premaratne
Keyword(s):  
Vibration Control ◽  
Optimal Placement ◽  
Floor Vibration

scholarly journals 06.08: Vibration Control of Novel Passive Multi-joints Rotational Friction Dampers

ce/papers ◽  
2017 ◽  
Vol 1 (2-3) ◽  
pp. 1473-1482
Author(s):  
Imad Mualla ◽  
Holger Koss
Keyword(s):  
Vibration Control ◽  
Friction Dampers

Semiactive Tuned Mass Damper for Floor Vibration Control

2007 ◽  
Vol 133 (2) ◽  
pp. 242-250 ◽  
Author(s):  
Mehdi Setareh ◽  
John K. Ritchey ◽  
Thomas M. Murray ◽  
Jeong-Hoi Koo ◽  
Mehdi Ahmadian
Keyword(s):  
Vibration Control ◽  
Tuned Mass Damper ◽  
Mass Damper ◽  
Floor Vibration

Floor vibration control using semi-active tuned mass dampers

2002 ◽  
Vol 29 (1) ◽  
pp. 76-84 ◽  
Author(s):  
Mehdi Setareh
Keyword(s):  
Vibration Control ◽  
Design Parameters ◽  
Tuned Mass Dampers ◽  
Tuned Vibration Absorbers ◽  
Mass Ratios ◽  
Floor Vibrations ◽  
Floor Vibration ◽  
Active Damper ◽  
Comparison Of The Results ◽  
Frequency Ratios

This paper discusses the application of a new class of semi-active tuned mass dampers, called ground-hook tuned mass dampers (GHTMD), for the reduction of floor vibrations due to human movements. The TMD introduced uses a continuously variable semi-active damper (ground-hook damper) to achieve reduction in the floor acceleration. Here, the GHTMD is applied to a single degree of freedom system representative of building floors. The GHTMD design parameters are defined in terms of non-dimensional values. The optimum values of these parameters are found based on the minimization of the acceleration response of the floor for different GHTMD mass ratios and floor damping ratios. The performance of the GHTMD is compared to that of the equivalent passive TMD. In addition, the effects of off-tuning due to variations in the mass ratios and frequency ratios of the TMD and GHTMD are studied. Comparison of the results demonstrates the efficiency and robustness of GHTMD with respect to equivalent TMD. Finally, a guide for the design of GHTMDs is presented.Key words: floor vibrations, semi-active tuned mass dampers, tuned vibration absorbers, vibration control, ground-hook dampers, human-induced vibrations, annoying vibrations, optimum design parameters.

Vibration Control of Offshore Platform Structure with Friction Dampers

2014 ◽  
Vol 638-640 ◽  
pp. 318-321
Author(s):  
Da Hai Zhao ◽  
Jing Lin Zhang
Keyword(s):  
Energy Dissipation ◽  
Vibration Control ◽  
Equation Of Motion ◽  
Offshore Platform ◽  
Wave Loads ◽  
Friction Damper ◽  
Friction Dampers ◽  
Offshore Platform Structure ◽  
Better Than

The performance of friction dampers to mitigate waves and earthquakes in tower-type offshore platform is investigated in this paper. Taking the offshore platform of TOWER-1 as an example, the equation of motion of offshore platform structure under earthquake and wave loads was established. The response reductions of offshore platform structure by different peak earthquakes were analyzed. The results show that the responses of the tower-type offshore platform structure under wave and earthquake could be effectively reduced by friction damper, and the energy dissipation ability of the friction damper differs in the different floors. The friction dampers give good response reductions in different peak earthquakes, and the response reductions of displacement are better than those of acceleration.

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