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Vibration Analysis of the Rotating Hybrid Cylindrical Shells Laminated with Metal and Composite

회전하는 금속복합재료 혼합적층 원통쉘의 진동해석

  • Lee, Young-Sin (Dept. of Mechanical Design Engineering, Chungnam National University) ;
  • Kim, Young-Wann (Dept. of Mechanical Design Engineering, Graduate School of Chungnam National University)
  • 이영신 (충남대학교 기계설계공학과) ;
  • 김영환 (충남대학교 대학원 기계설계공학과)
  • Published : 1996.03.01

Abstract

The linear/nonlinear vibration response of the rotating hybrid cylindrical shell with simply supported boundary condition is studied. The Ritz-Galerkin method is applied to obtain the nonlinear frequency equation, which excludes in-plane and rotatory inertia but includes bending stretching coupling terms. The bifurcation phenomena for the linear frequency and the frequency ratio(nonlinear/linear frequency ratio) are presented. The hybrid cylindrical shells are composed of composite(GFRP, CFRP) metal(aluminium, steel) with symmetric and antisymmetric stacking sequence. The effects of the Coriolis and centrifugal force are considered The results also present the effects of length-to- radies ratio, radius-to-thickness ratio, the circumferential wave number, the stacking sequence, the material property, the initial excitation amplitude and the rotating speed. The present linear frequency results are compared with those of the available literature.

Keywords

Hybrid Cylindrical Shell;Bifurcation Phenomenon;Centrifugal Force;Initial Excitation Amplitude