Analytical Solution for Electro-mechanical Behavior of Piezoelectric Rotating Shaft Reinforced by BNNTs Under Non-axisymmetric Internal Pressure
Publish place: Journal of Solid Mechanics، Vol: 4، Issue: 4
Publish Year: 1391
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_JSMA-4-4_002
تاریخ نمایه سازی: 28 مرداد 1402
Abstract:
In this study, two-dimensional electro-mechanical analysis of a composite rotating shaft subjected to non-axisymmetric internal pressure and applied voltage is investigated where hollow piezoelectric shaft reinforced by boron nitride nanotubes (BNNTs). Composite structure is modeled based on piezoelectric fiber reinforced composite (PFRC) theory and a representative volume element has been considered for predicting the elastic, piezoelectric and dielectric properties of the composite rotating shaft. Distribution of radial, circumferential, shear and effective stresses and electric displacement in composite rotating shaft are determined based on Fourier series. The detailed parametric study is conducted, focusing on the remarkable effects of angular velocity, electric potential, volume fraction and orientation angle of BNNTs on the distribution of stresses. The results show that properties of the piezoelectric shaft as matrix have significant influence on the electro-mechanical stresses where the PZT-۴ has less effective stresses against PVDF. Therefore, PZT-۴ could be considered for improving optimum design of rotating piezoelectric shaft under electric field and non-axisymmetric mechanical loadings.
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Authors
A Ghorbanpour Arani
Faculty of Mechanical Engineering, University of Kashan--- Institute of Nanoscience & Nanotechnology, University of Kashan
E Haghparast
Faculty of Mechanical Engineering, University of Kashan
S Amir
Faculty of Mechanical Engineering, University of Kashan
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