Nonlinear dynamics characterization of piezoelectric energy harvesters from hybrid vibrations

Zhimiao Yan, Abdessattar Abdelkefi, Muhammad R. Hajj

Research output: Contribution to conferencePaperpeer-review

Abstract

The concept of energy harvesting from ambient and galloping vibrations of a bluff body with a triangular cross-section geometry is investigated. A coupled nonlinear distributed- parameter model is developed to account for the galloping force and moment nonlinearities and the base excitation. The aerodynamic loads are modeled by using the quasi-steady approximation. Interesting nonlinear phenomena including quenching and beating phenomena are observed. To characterize the system's nonlinearities, power spectra, phase portraits, and Poincare maps are used.

Original languageEnglish
DOIs
StatePublished - 2014
Event55th AIAA/ASMe/ASCE/AHS/SC Structures, Structural Dynamics, and Materials Conference - SciTech Forum and Exposition 2014 - National Harbor, MD, United States
Duration: 13 Jan 201417 Jan 2014

Conference

Conference55th AIAA/ASMe/ASCE/AHS/SC Structures, Structural Dynamics, and Materials Conference - SciTech Forum and Exposition 2014
Country/TerritoryUnited States
CityNational Harbor, MD
Period13/01/1417/01/14

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