Steel and Composite Structures

  • 제50권2호
  • /
  • Pages.201-216
  • /
  • 2024
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  • 1229-9367(pISSN)
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  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Nonlinear vibration analysis of fluid-conveying cantilever graphene platelet reinforced pipe

  • Bashar Mahmood Ali (Materials Sciences and Engineering PhD Program, Graduate School of Natural and Applied Sciences, Kastamonu University) ;
  • Mehmet AKKAS (Department of Mechanical Engineering, Faculty of Engineering and Architecture, Kastamonu University) ;
  • Aybaba HANCERLIOGULLARI (Kastamonu University, Faculty of Science Department of physics) ;
  • Nasrin Bohlooli (School of Civil Engineering, Urmia University)
  • 투고 : 2022.08.23
  • 심사 : 2023.12.27
  • 발행 : 2024.01.25
⟨ 이전 논문 다음 논문 ⟩

초록

This paper is motivated by the lack of studies relating to vibration and nonlinear resonance of fluid-conveying cantilever porous GPLR pipes with fractional viscoelastic model resting on nonlinear foundations. A dynamical model of cantilever porous Graphene Platelet Reinforced (GPLR) pipes conveying fluid and resting on nonlinear foundation is proposed, and the vibration, natural frequencies and primary resonant of such system are explored. The pipe body is considered to be composed of GPLR viscoelastic polymeric pipe with porosity in which Halpin-Tsai scheme in conjunction with fractional viscoelastic model is used to govern the construction relation of the nanocomposite pipe. Three different porosity distributions through the pipe thickness are introduced. The harmonic concentrated force is also applied on pipe and excitation frequency is close to the first natural frequency. The governing equation for transverse motion of the pipe is derived by the Hamilton principle and then discretized by the Galerkin procedure. In order to obtain the frequency-response equation, the differential equation is solved with the assumption of small displacement, damping coefficient, and excitation amplitude by the multiple scale method. A parametric sensitivity analysis is carried out to reveal the influence of different parameters, such as nanocomposite pipe properties, fluid velocity and nonlinear viscoelastic foundation coefficients, on the primary resonance and linear natural frequency. Results indicate that the GPLs weight fraction porosity coefficient, fractional derivative order and the retardation time have substantial influences on the dynamic response of the system.

키워드

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