In this paper, energy harvesting from a thin annular sectorial plate, which consists of an elastic layer bonded with two layers of piezoelectric materials, is studied analytically. The Rayleigh damping assumption is used in the model to consider the structural damping. To derive the governing equations, the Hamilton principle for an electro-elastic body is employed based on the classical plate theory, and to solve the derived equations, the Rayleigh–Ritz method is used. The modeling approach is verified against analytical solutions as well as experimental results for rectangular and annular sectorial plates. Finally, the impact of changing some parameters (material properties, electrical boundary conditions, geometrical parameters) on the performance of the system is investigated extensively. It is shown that the annular sector plate energy harvesters can deliver better performance compared to rectangular plate energy harvesters.

在本文中，分析研究了从薄环形扇形板收集能量，该扇形板由弹性层与两层压电材料粘合而成。模型中使用瑞利阻尼假设来考虑结构阻尼。为了推导控制方程，基于经典板理论采用电弹性体的哈密顿原理，并使用瑞利-里兹方法求解推导方程。该建模方法针对矩形和环形扇形板的解析解以及实验结果进行了验证。最后，广泛研究了改变某些参数（材料特性、电气边界条件、几何参数）对系统性能的影响。