A new nonlinearly tapered FGM piezoelectric energy harvester

Keshmiri, Alireza1; Wu, Nan1; Wang, Quan2

2018-10-15

10.1016/j.engstruct.2018.06.081

ENGINEERING STRUCTURES   影响因子和分区

0141-0296

1873-7323

This work presents an analytical model for the development of a piezoelectric energy harvester with general nonlinear geometry and functionally graded material (FGM) properties based on Adomian decomposition method. The model is applied to geometrically and materially non-uniform beams with structural strain rate damping and surface bonded piezoelectric layers to derive the dynamic response of the smart structure to base motion excitations and efficiently harvesting the subsequent vibrational energy. Firstly, the steady state vibration response of the smart non-uniform FGM beam subjected to a harmonic base motion is obtained and then electromechanical outputs of the piezoelectric patches are analytically derived. Furthermore, a comprehensive parametric study for bimorph piezoelectric energy harvesters with different nonlinearly tapered geometry and FGM properties in a wide frequency range has been done. Considering the same volume of the harvester, it is demonstrated that the novel non-uniform FGM design can significantly increase the electrical output of the harvester by more than 19.76 times compared to the traditional uniform homogenous design. With the presented methodology, optimum structural design for piezoelectric energy harvesters with respect to the operation frequency domain can be effectively achieved.

Energy harvesting Piezoelectric coupled structure Nonlinear geometry FGM Adomian decomposition method

SCI ; EI

英语

通讯

Natural Sciences and Engineering Research Council of Canada[]

Engineering

Engineering, Civil

WOS:000443663100003

ELSEVIER SCI LTD

20182705406704

Beams and girders ; Energy harvesting ; Frequency domain analysis ; Functionally graded materials ; Geometry ; Piezoelectric devices ; Piezoelectricity ; Strain rate ; Structural optimization ; Vibration analysis

Structural Design, General:408.1 ; Structural Members and Shapes:408.2 ; Energy Conversion Issues:525.5 ; Electricity: Basic Concepts and Phenomena:701.1 ; Mathematics:921

ENGINEERING

Web of Science

1.Univ Manitoba, Dept Mech Engn, Winnipeg, MB R3T 5V6, Canada
2.Southern Univ Sci & Technol, Dept Mech & Aerosp Engn, Shenzhen 518055, Peoples R China

Keshmiri, Alireza,Wu, Nan,Wang, Quan. A new nonlinearly tapered FGM piezoelectric energy harvester[J]. ENGINEERING STRUCTURES,2018,173:52-60.

Keshmiri, Alireza,Wu, Nan,&Wang, Quan.(2018).A new nonlinearly tapered FGM piezoelectric energy harvester.ENGINEERING STRUCTURES,173,52-60.

Keshmiri, Alireza,et al."A new nonlinearly tapered FGM piezoelectric energy harvester".ENGINEERING STRUCTURES 173(2018):52-60.