Research Papers

Dual-Functional Energy-Harvesting and Vibration Control: Electromagnetic Resonant Shunt Series Tuned Mass Dampers

[+] Author and Article Information
Lei Zuo

e-mail: lei.zuo@stonybrook.edu

Wen Cui

Department of Mechanical Engineering,
State University of New York at Stony Brook,
Stony Brook, NY 11794

Contributed by the Design Engineering Division of ASME for publication in the Journal of Vibration and Acoustics. Manuscript received February 20, 2012; final manuscript received March 21, 2013; published online June 18, 2013. Assoc. Editor: Wei-Hsin Liao.

J. Vib. Acoust 135(5), 051018 (Jun 18, 2013) (9 pages) Paper No: VIB-12-1042; doi: 10.1115/1.4024095 History: Received February 20, 2012; Revised March 21, 2013

This paper proposes a novel retrofittable approach for dual-functional energy-harvesting and robust vibration control by integrating the tuned mass damper (TMD) and electromagnetic shunted resonant damping. The viscous dissipative element between the TMD and primary system is replaced by an electromagnetic transducer shunted with a resonant RLC circuit. An efficient gradient based numeric method is presented for the parameter optimization in the control framework for vibration suppression and energy harvesting. A case study is performed based on the Taipei 101 TMD. It is found that by tuning the TMD resonance and circuit resonance close to that of the primary structure, the electromagnetic resonant-shunt TMD achieves the enhanced effectiveness and robustness of double-mass series TMDs, without suffering from the significantly amplified motion stroke. It is also observed that the parameters and performances optimized for vibration suppression are close to those optimized for energy harvesting, and the performance is not sensitive to the resistance of the charging circuit or electrical load.

Copyright © 2013 by ASME
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Fig. 1

(a) Classic TMD, (b) dual-functional TMD for energy harvesting and vibration control, where the damping c1 is implemented with an electromagnetic transducer shunted with a resistive circuit

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Fig. 2

A vibration system with electromagnetic resonant shunt circuit is similar as a TMD

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Fig. 3

The frequency responses of the classic TMD of mass ratio 1% with Den Hartog's tuning (dash) and electromagnetic shunt TMD of stiffness ratio 1% withtuning (solid) of Inoue et al. [14] compared with that of the primary without TMD (dot)

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Fig. 4

(a) Double-mass series TMD, (b) the RMS stroke the double-mass series TMD is several times larger than the classic TMD or parallel TMDs [6]

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Fig. 5

The proposed series TMD with electromagnetic resonant shunt

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Fig. 6

The modeling of electromagnetic shunt series TMD as a control problem, where the control force u1 is generated by the spring k1, and the control force u2 is produced by the electrical capacitor C and the resistor R

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Fig. 7

The parameter optimization of the mechanical and electrical components in the framework of decentralized control

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Fig. 8

The frequency responses of electromagnetic shunt series TMD for Taipei 101 Tower (solid) in comparison with double-mass TMD (dashed-dotted), classic TMD (dash), and system without TMD (dot), where all parameters are optimized to minimize the H2 norm from external force to the displacement of the primary system

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Fig. 9

The frequency response of the electromagnetic series TMD optimized for vibration suppression (solid) and optimized for energy harvesting (dash) for Taipei 101 Tower

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Fig. 10

The linear power spectrum density (W/Hz) of harvested energy in electromagnetic series TMD system optimized for energy harvesting under white-noise force excitation (solid) and optimized for vibration suppression (dash) in comparison with the classic TMD (dashed-dotted) and double-mass series TMD (dot)

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Fig. 11

The frequency responses of the electromagnetic series TMD (left) and the classic TMD (right) after 5% changes of the tuning parameters (k1, C, R) or (k1, c1). The electromagnetic series TMD is more robust than the classic TMD.

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Fig. 12

Sensitivity of vibration suppression of the electromagnetic shunt series TMD for Taipei 101 to the changes of tuning parameters: stiffness k1 (solid), capacitor C (dash), and electrical load R (dot) under unit white-noise force excitation Fex

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Fig. 13

Sensitivity of energy harvesting of the electromagnetic shunt series TMD for Taipei 101 to the changes of tuning parameters: stiffness k1 (solid), capacitor C (dash), and electrical load R (dot)




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