Continuous element formulations for composite ring-stiffened cylindrical shells

Authors

  • Le Thi Bich Nam School of Mechanical Engineering, HUST, 1 Dai Co Viet, Ha Noi, Viet Nam
  • Nguyen Manh Cuong School of Mechanical Engineering, HUST, 1 Dai Co Viet, Ha Noi, Viet Nam
  • Tran Ich Thinh School of Mechanical Engineering, HUST, 1 Dai Co Viet, Ha Noi, Viet Nam
  • Tran Thanh Dat Department of Space and Applications, HUST, 1 Dai Co Viet, Ha Noi, Viet Nam
  • Vu Dinh Trung Department of Space and Applications, HUST, 1 Dai Co Viet, Ha Noi, Viet Nam

DOI:

https://doi.org/10.15625/2525-2518/56/4/10987

Keywords:

Joined shell vibration, Continuous element method

Abstract

This research studies the free vibration of composite ring-stiffened cylindrical shells by the continuous element method (CEM). The dynamic stiffness matrix (DSM) of the investigated structure has been constructed based on the analytical solutions of the governing equations of motion for composite cylindrical shells and annular plates. By applying the powerful assembly procedure of continuous elements method, natural frequencies and harmonic responses of composite ring-stiffened cylindrical shells have been obtained. In addition, the proposed model allows extracting exactly ring-stiffener vibration modes by choosing appropriate points of response. Numerical examples have confirmed many advantages of the developed model.

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Published

2018-08-06

How to Cite

[1]
L. T. B. Nam, N. M. Cuong, T. I. Thinh, Tran Thanh Dat, and Vu Dinh Trung, “Continuous element formulations for composite ring-stiffened cylindrical shells”, Vietnam J. Sci. Technol., vol. 56, no. 4, pp. 515–530, Aug. 2018.

Issue

Section

Mechanical Engineering - Mechatronics