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Energy Harvesting in a Coupled System Using Nonlinear Impact

  • K. Vijayan
  • M. I. Friswell
  • H. H. Khodaparast
  • S. Adhikari
Conference paper
Part of the Conference Proceedings of the Society for Experimental Mechanics Series book series (CPSEMS)

Abstract

Energy harvesting from broadband excitation, such as aircraft noise, and low frequency excitation, such as human motion, has gained significant interest recently. Vibro-impact is one of the methods used to improve capability of the harvester by low to high frequency conversion. The present paper analyses the effect of vibro-impact within a coupled beam system. The system is base excited and a localised non-linearity is induced at the point of impact. Modal reduction techniques are applied to reduce the computational time. The localisation effect on the coupled beam system is performed by varying the system parameters, for example the amplitude of excitation, the clearance and stiffness between the beams.

Keywords

Vibro-impact Energy harvesting Frequency-conversion Piezoelectric Modal reduction 

Notes

Acknowledgements

The authors acknowledge the support of the Engineering and Physical Sciences Research Council through grant number EP/K003836.

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Copyright information

© The Society for Experimental Mechanics, Inc. 2014

Authors and Affiliations

  • K. Vijayan
    • 1
  • M. I. Friswell
    • 1
  • H. H. Khodaparast
    • 1
  • S. Adhikari
    • 1
  1. 1.College of EngineeringSwansea UniversitySwanseaUK

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