Functionally Graded Piezoelectric Energy Harvester Using Thin Cylindrical Shell
|Published in:||International Journal of Structural Stability and Dynamics, October 2017, n. 8, v. 17|
Presented herein is a functionally graded piezoelectric energy harvester using a thin cylindrical shell. The torsional mode for the thin cylindrical shell is studied and the effects of the functionally graded parameters on the power density are discussed. The analytical expressions for the power density are derived. From the results obtained, it can be observed that the functionally graded constant has obvious influences on the peak value of the power density. Moreover, larger values of the power density may be obtained by increasing the elastic parameter and the mass density. This work is expected to be useful in the analysis and design of energy harvester as well as new kinds of energy systems.
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