The energy harvesting performance of a piezoelectric stack actuator under a shock event is theoretically and experimentally investigated. The first method is derived from the single degree of freedom constitutive equations, and then a correction factor is applied onto the resulting electromechanically coupled equations of motion. The second approach is deriving the coupled equations of motion with Hamilton's principle and the constitutive equations, and then formulating it with the finite element method. Two experimental cases matched well with the model predictions where the percent errors were 3.90% and 3.26% for the SDOF analysis and 1.52% and 1.42% for the FEM.
Energy Harvesting of Piezoelectric Stack Actuator From a Shock Event
Contributed by the Design Engineering Division of ASME for publication in the JOURNAL OF VIBRATION AND ACOUSTICS. Manuscript received May 23, 2013; final manuscript received October 3, 2013; published online November 19, 2013. Assoc. Editor: Brian P. Mann.
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Lee, A. J., Wang, Y., and Inman, D. J. (November 19, 2013). "Energy Harvesting of Piezoelectric Stack Actuator From a Shock Event." ASME. J. Vib. Acoust. February 2014; 136(1): 011016. https://doi.org/10.1115/1.4025878
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