Applied Mathematics and Mechanics (English Edition) ›› 2025, Vol. 46 ›› Issue (4): 683-698.doi: https://doi.org/10.1007/s10483-025-3237-8

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Free vibration of piezoelectric semiconductor composite structure with fractional viscoelastic layer

Yansong LI1, Wenjie FENG2,3,(), Lei WEN3   

  1. 1.College of Architecture and Civil Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, Guangdong Province, China
    2.Hebei Research Center of the Basic Discipline Engineering Mechanics, Shijiazhuang Tiedao University, Shijiazhuang 050043, China
    3.Department of Engineering Mechanics, Shijiazhuang Tiedao University, Shijiazhuang 050043, China
  • Received:2024-10-28 Revised:2025-02-01 Published:2025-04-07
  • Contact: Wenjie FENG, E-mail: wjfeng9999@126.com
  • Supported by:
    Project supported by the National Natural Science Foundation of China (No. 12372153) and the Funding by Guangdong Basic and Applied Basic Research Foundation (No. 2023A1515012366)

Abstract:

In this study, the free vibration of a piezoelectric semiconductor (PS) composite structure composed of a PS layer, a fractional viscoelastic layer, and an elastic substrate with simply-supported boundary conditions is investigated. The fractional derivative Zener model is used to establish the constitutive relation of the viscoelastic layer. The first-order shear deformation theory and Hamilton's principle are used to derive the motion equations of the present problem. The frequency parameter is numerically resolved with the Newton-Raphson method through the eigenvalue equation. The effects of either geometric parameters, carrier density, and electric voltage applied on the surface of the composite structure or the fractional order of the Zener model on both the natural frequency and loss factor are discussed, and some interesting conclusions are drawn. This work will be helpful for designing and manufacturing PS materials and structures.

Key words: fractional viscoelastic material, free vibration, composite structure, piezoelectric semiconductor (PS)

2010 MSC Number: 

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