Abstract
The use of bistable laminates is a potential approach to realize broadband piezoelectric based energy harvesting systems. In this paper the dynamic response of a piezoelectric material attached to a bistable laminate plate is examined based on the experimental generated voltage time series. The system was subjected to harmonic excitations and exhibited single-well and snap-through vibrations of both periodic and chaotic character. To identify the dynamics of the system response we examined the frequency spectrum, bifurcation diagrams, phase portraits, and the 0–1 test.
Highlights
Various energy harvesting devices have been developed in an attempt to convert ambient vibrations to electrical energy [1, 2]
In this paper the dynamic response of a piezoelectric material attached to a bistable laminate plate is examined based on the experimental generated voltage time series
To identify the dynamics of the system response we examined the frequency spectrum, bifurcation diagrams, phase portraits, and the 0–1 test
Summary
Various energy harvesting devices have been developed in an attempt to convert ambient vibrations to electrical energy [1, 2]. A. Kim Department of Mechanical Engineering, University of Bath, Bath BA2 7AY, UK harvesting the use of piezoelectric materials is a potential route for generating the necessary power levels, typically in the lW to mW range. Kim Department of Mechanical Engineering, University of Bath, Bath BA2 7AY, UK harvesting the use of piezoelectric materials is a potential route for generating the necessary power levels, typically in the lW to mW range The advantages of these materials are their higher strain energy densities compared to electrostatic and electromagnetic systems and their ease of integration with mechanically vibrating structures [3]
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