Smart Structures and Systems

  • 제26권4호
  • /
  • Pages.469-480
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  • 2020
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  • 1738-1584(pISSN)
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  • 1738-1991(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Influence of imperfection on the smart control frequency characteristics of a cylindrical sensor-actuator GPLRC cylindrical shell using a proportional-derivative smart controller

  • Zare, Reza (Department of Electrical Engineering, Shahid Beheshti University) ;
  • Najaafi, Neda (Iran Industrial Design Company) ;
  • Habibi, Mostafa (Institute of Research and Development, Duy Tan University) ;
  • Ebrahimi, Farzad (Mechanical Engineering department, Faculty of Engineering, Imam Khomeini International University) ;
  • Safarpour, Hamed (Mechanical Engineering department, Faculty of Engineering, Imam Khomeini International University)
  • 투고 : 2019.12.04
  • 심사 : 2020.07.12
  • 발행 : 2020.10.25
⟨ 이전 논문 다음 논문 ⟩

초록

This is the first research on the smart control and vibration analysis of a Graphene nanoplatelets (GPLs) Reinforced Composite (GPLRC) porous cylindrical shell covered with piezoelectric layers as sensor and actuator (PLSA) in the framework of numerical based Generalized Differential Quadrature Method (GDQM). The stresses and strains are obtained using the First-order Shear Deformable Theory (FSDT). Rule of the mixture is employed to obtain varying mass density and Poisson's ratio, while the module of elasticity is computed by modified Halpin-Tsai model. The external voltage is applied to sensor layer and a Proportional-Derivative (PD) controller is used for sensor output control. Governing equations and boundary conditions of the GPLRC cylindrical shell are obtained by implementing Hamilton's principle. The results show that PD controller, length to radius ratio (L/R), applied voltage, porosity and weight fraction of GPL have significant influence on the frequency characteristics of a porous GPLRC cylindrical shell. Another important consequence is that at the lower value of the applied voltage, the influence of the smart controller on the frequency of the micro composite shell is much more significant in comparison with the higher ones.

키워드

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