Journal of KSNVE (소음진동)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Development of a Finite Element for Vibration Analysis of an Annular Plate with Slight Deviation

미소한 비대칭이 존재하는 원판의 진동해석을 위한 유한요소 개발

  • 김민중 (서울대학교 대학원 기계설계학과) ;
  • 정진태 (한양대학교 공학대학 기계공학과) ;
  • 이장무 (서울대학교 공과대학 기계항공공학부)
  • Published : 2000.04.01
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Abstract

In this paper, a new finite annular plate element is developed, which considers the effects of the slight deviation from a perfect axisymmetry. It is assumed that, when a local deviation is introduced to an axisymmetric plate, the natural modes are separated into the symmetric and asymmetric modes. The proposed method is very efficient because a few elements are demanded and lots of active degrees of freedom are reduced in comparison with commercial numerical analysis programs. In addition, when the deviation is small enough. It is more accurate than the result of using usual plate elements of commercial FEM programs.

Keywords

References

  1. Analysis and Behavior Thin-Walled Structures With Structural Imperfections Gody,L.A.
  2. Journal of Sound and Vibration v.155 Dynamic Analysis Containing Small Elastic Imperfections:theory with Application to Asymmetric Plates Shen,I.Y.;Mote,C.D.
  3. Transactions of the American Society of Mechanical Engineers,Journal of Applied Mechanics v.61 Vibration of Circular Rings with Local Deviation Hong J.S.;Lee,J.M.
  4. Journal of Sound and Vibration v.219 Vibration Analysis of an Nearly Axisymmetric Shell Structure Using a New Finite Ring Element Chung J.;Lee,J.M.
  5. Finite Element Procedures Bathe,K.J.