Hysteretic Nonlinear Characteristics and Stochastic Bifurcation of Cantilevered Piezoelectric Energy Harvester
作者： Jia Xu , Zhi Wen Zhu
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMM.479-480.348
关键词:
摘要: Hysteretic nonlinear characteristics and stochastic bifurcation of cantilevered piezoelectric energy harvester was studied in this paper. Piezoelectric ceramics adhesively bonded on the substrate cantilever beam to make beam. Von de Pol difference item introduced interpret hysteretic phenomena ceramics, then dynamic model subjected axial excitation developed. The stability system analyzed, steady-state probability density function joint response were obtained. Finally, conditions Hopf determined. Numerical simulation shows that appears when parameter varies, which can increase vibration amplitude improve efficiency harvester. results paper are helpful application engineering fields.
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