Steel and Composite Structures

  • 제32권4호
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  • Pages.509-519
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  • 2019
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  • 1229-9367(pISSN)
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  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Nonlinear dynamic analysis of spiral stiffened cylindrical shells rested on elastic foundation

  • Foroutan, Kamran (Faculty of Mechanical and Mechatronics Engineering, Shahrood University of Technology) ;
  • Shaterzadeh, Alireza (Faculty of Mechanical and Mechatronics Engineering, Shahrood University of Technology) ;
  • Ahmadi, Habib (Faculty of Mechanical and Mechatronics Engineering, Shahrood University of Technology)
  • 투고 : 2019.01.07
  • 심사 : 2019.07.30
  • 발행 : 2019.08.25
⟨ 이전 논문 다음 논문 ⟩

초록

In this paper, an analytical approach for the free vibration analysis of spiral stiffened functionally graded (SSFG) cylindrical shells is investigated. The SSFG shell is resting on linear and non-linear elastic foundation with damping force. The elastic foundation for the linear model is according to Winkler and Pasternak parameters and for the non-linear model, one cubic term is added. The material constitutive of the stiffeners is continuously changed through the thickness. Using the Galerkin method based on the von $K\acute{a}rm\acute{a}n$ equations and the smeared stiffeners technique, the non-linear vibration problem has been solved. The effects of different geometrical and material parameters on the free vibration response of SSFG cylindrical shells are adopted. The results show that the angles of stiffeners and elastic foundation parameters strongly effect on the natural frequencies of the SSFG cylindrical shell.

키워드

참고문헌

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피인용 문헌

  1. Nonlinear Torsional Buckling of Functionally Graded Carbon Nanotube Orthogonally Reinforced Composite Cylindrical Shells in Thermal Environment vol.12, pp.7, 2019, https://doi.org/10.1142/s1758825120500726