대한조선학회논문집 (Journal of the Society of Naval Architects of Korea)

  • 제46권2호
  • /
  • Pages.155-164
  • /
  • 2009
  • /
  • 1225-1143(pISSN)
  • /
  • 2287-7355(eISSN)
대한조선학회 (The Society of Naval Architects of Korea)
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스펙트럴유한요소법을 적용한 점탄성층 샌드위치평판의 진동해석

Applications of Spectral Finite Element Method for Vibration Analysis of Sandwich Plate with Viscoelastic Core

  • 이성주 (서울대학교 조선해양공학과) ;
  • 송지훈 (서울대학교 조선해양공학과) ;
  • 홍석윤 (서울대학교 조선해양공학과)
  • Lee, Sung-Ju (Department of Naval Architecture and Ocean Engineering, Seoul National University) ;
  • Song, Jee-Hun (Department of Naval Architecture and Ocean Engineering, Seoul National University) ;
  • Hong, Suk-Yoon (Department of Naval Architecture and Ocean Engineering, Seoul National University)
  • 발행 : 2009.04.20
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초록

In this paper, a spectral finite element method for a rectangular sandwich plate with viscoelastic core having the Levy-type boundary conditions has been plated. The sandwich plate consists of two isotropic and elastic face plates with a surfaced-bonded viscoelastic core. For the analysis, the in-plane and transverse energy in the face plates and only shear energy in the core are considered, respectively. To account for the frequency dependent complex shear modulus of the viscoelastic core, the Golla-Hughes-McTavish model is adopted. To evaluate the validity and accuracy of the proposed method, the frequency response function and dynamic responses of the sandwich plate with all edges simply supported subject to an impact load are calculated and compared with those calculated by a finite element method. Though these calculations, it is confirmed that the proposed method is very reliable and efficient one for vibration analysis of a rectangular sandwich plate with viscoelastic core having the Levy-type boundary conditions.

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참고문헌

  1. Doyle, J.F., 1997, Wave Propagation in Structures, Second Edition, Springer, New York
  2. McTavish, D.J. and Hughes, P.C., 1993, 'Modeling of Linear Viscoelastic Space Structures,' Journal of Vibration and Acoustics, Vol. 115, pp. 103-110 https://doi.org/10.1115/1.2930302
  3. Rao, Y.V.K.S and Nakra, B.C., 1974, 'Vibrations of unsymmetrical sandwich beams and plates with viscoelastic cores,' Journal of Sound and Vibration, Vol. 34, No. 3, pp. 309-326 https://doi.org/10.1016/S0022-460X(74)80315-9
  4. Wang, G. and Wereley, N.M., 2003, 'Analysis of Sandwich Plates with Viscoelastic Damping Using Two-Dimensional Plate Modes,' AIAA JOURNAL, Vol. 41, pp. 924-932 https://doi.org/10.2514/2.2028
  5. Yeh, J.Y. and Chen, L.W., 2003, 'Vibration of a sandwich plate with a constrained layer and electrorhelogical fluid core,' Composite Structures, Vol. 65, pp. 251-258 https://doi.org/10.1016/j.compstruct.2003.11.004
  6. Yu, S.C. and Huang, S.C., 2001, 'Vibration of a three-layered viscoelastic sandwich circular plate,' International Journal of Mechanical Sciences, Vol. 43, pp. 2215-2236 https://doi.org/10.1016/S0020-7403(01)00045-5