Exact H2optimal tuning and experimental verification of energy-harvesting series electromagnetic tuned mass dampers

2016 ◽  
Author(s):  
Yilun Liu ◽  
Lei Zuo ◽  
Chi-Chang Lin ◽  
Jason Parker
Keyword(s):  
Energy Harvesting ◽  
Experimental Verification ◽  
Tuned Mass Dampers

Simultaneous energy harvesting and vibration control of structures with tuned mass dampers

2012 ◽  
Vol 23 (18) ◽  
pp. 2117-2127 ◽  
Author(s):  
Xiudong Tang ◽  
Lei Zuo
Keyword(s):  
Energy Harvesting ◽  
Vibration Control ◽  
Control Strategies ◽  
Tall Buildings ◽  
Tuned Mass Damper ◽  
Vibration Energy ◽  
Damping Force ◽  
Tuned Mass Dampers ◽  
Mass Damper ◽  
Self Powered

The vibrations of the tall buildings are serious concerns to both engineers and architects for the protection of the safety of the structure and occupant comfort. In order to mitigate the vibration, different approaches have been proposed, among which tuned mass dampers are one of the most preferable and have been widely used in practice. Instead of dissipating the vibration energy into heat waste via the viscous damping element, this article presents an approach to harvest the vibration energy from tall buildings with tuned mass dampers, by replacing the energy-dissipating element with an electromagnetic harvester. This article demonstrates that vibration mitigation and energy harvesting can be achieved simultaneously by the utilization of an electricity-generating tuned mass damper and relevant algorithms. Based on the proposed switching energy harvesting circuit, three control strategies are investigated in this article, namely, semi-active, self-powered active, and passive-matching regenerative. The functions of the energy harvesting circuit on damping force control and power regulation, as well the effectiveness of the control strategies, are illustrated by simulation. The simultaneous energy harvesting and vibration control are demonstrated, for the first time, by experiment based on a three-story building prototype with the electricity-generating tuned mass damper, which is composed of a rotational brushed direct current motor and rack–pinion mechanism.

A Magnetostrictive Electric Power Generator for Energy Harvesting From Traffic: Design and Experimental Verification

2015 ◽  
Vol 51 (11) ◽  
pp. 1-4 ◽  
Author(s):  
Alessia Viola ◽  
Vincenzo Franzitta ◽  
Giovanni Cipriani ◽  
Vincenzo Di Dio ◽  
Francesco Maria Raimondi ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Electric Power ◽  
Experimental Verification ◽  
Power Generator

scholarly journals Exact H2 Optimal Tuning and Experimental Verification of Energy-Harvesting Series Electromagnetic Tuned-Mass Dampers

2016 ◽  
Vol 138 (6) ◽  
Author(s):  
Yilun Liu ◽  
Chi-Chang Lin ◽  
Jason Parker ◽  
Lei Zuo
Keyword(s):  
Numerical Analysis ◽  
Energy Harvesting ◽  
Vibration Control ◽  
Primary Structure ◽  
Tuned Mass Damper ◽  
Mean Square ◽  
Tuned Mass Dampers ◽  
Vibration Mitigation ◽  
Dual Functional ◽  
Mass Damper

Energy-harvesting series electromagnetic-tuned mass dampers (EMTMDs) have been recently proposed for dual-functional energy harvesting and robust vibration control by integrating the tuned mass damper (TMD) and electromagnetic shunted resonant damping. In this paper, we derive ready-to-use analytical tuning laws for the energy-harvesting series EMTMD system when the primary structure is subjected to force or ground excitations. Both vibration mitigation and energy-harvesting performances are optimized using H2 criteria to minimize root-mean-square (RMS) values of the deformation of the primary structure or maximize the average harvestable power. These analytical tuning laws can easily guide the design of series EMTMDs under various external excitations. Later, extensive numerical analysis is presented to show the effectiveness of the series EMTMDs. The numerical analysis shows that the series EMTMD more effectively mitigates the vibration of the primary structure nearly across the whole frequency spectrum, compared to that of classic TMDs. Simultaneously, the series EMTMD can better harvest energy due to its broader bandwidth effect. Beyond simulations, this paper also experimentally verifies the effectiveness of the series EMTMDs in both vibration mitigation and energy harvesting.

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