Strategies for coupled vibration suppression and energy harvesting

A. Cammarano*, A. Gonzalez-Buelga, S. A. Neild, D. J. Inman, S. G. Burrow

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

1 Citation (Scopus)

Abstract

The use of tuned-mass-dampers (TMD) as structural vibration suppressors has been discussed widely over several decades and many parameter selection strategies exist for minimising the displacement of the host structure. Normally these strategies work best when the resonant frequency of the TMD is closely tuned to that of the structural mode that is being targeted. This can be an issue for structures with significant live loads such as slender bridges with heavy traffic. For this type of structure nonlinear or semi-active retunable TMDs have been proposed. In this paper we consider replacing the damper in the TMD with an electrical generator device. In its simplest form this device could be a motor/generator with a resistive load such that the velocity- force relationship is approximately proportional hence mimicking a viscous damper. Here we consider using a voice-coil linear actuator connected to an impedance emulator, which is capable of harvesting, rather than dissipating, some of the vibrational energy. We discuss how this harvested power can then be used to modify the resistive loading in real-time and hence allow a wider bandwidth of operation. The work present both numerical and experimental results and shows some viable strategies for the control and the design of the device.

Original languageEnglish
Title of host publicationMechanics of Biological Systems and Materials - Proceedings of the 2013 Annual Conference on Experimental and Applied Mechanics
PublisherSpringer, New York, NY
Pages27-33
Number of pages7
Volume4
ISBN (Print)9783319007762
DOIs
Publication statusPublished - 2014
Event32nd IMAC Conference and Exposition on Structural Dynamics, 2014 - Orlando, FL, United States
Duration: 3 Feb 20146 Feb 2014

Conference

Conference32nd IMAC Conference and Exposition on Structural Dynamics, 2014
CountryUnited States
CityOrlando, FL
Period3/02/146/02/14

Keywords

  • Energy harvesting
  • Vibration control

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  • Projects

    Engineering Nonlinearity

    Neild, S. A.

    7/09/126/09/17

    Project: Research

    Cite this

    Cammarano, A., Gonzalez-Buelga, A., Neild, S. A., Inman, D. J., & Burrow, S. G. (2014). Strategies for coupled vibration suppression and energy harvesting. In Mechanics of Biological Systems and Materials - Proceedings of the 2013 Annual Conference on Experimental and Applied Mechanics (Vol. 4, pp. 27-33). Springer, New York, NY. https://doi.org/10.1007/978-3-319-04546-7_4