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Spectral Element Analysis of the Vibrations of Moving Plates Subjected to Axial Tension

  • 조주용 (인하대학교 기계공학과) ;
  • 김주홍 (인하대학교 기계공학과) ;
  • 이우식 (인하대학교 기계공학과) ;
  • 박상덕 (포항산업과학연구원 선임 연구원)
  • 발행 : 2002.04.01

초록

The use of frequency-dependent dynamic stiffness matrix (or spectral element matrix) in structural dynamics may provide very accurate solutions, while it reduces the number of degrees-of-freedom to improve the computational efficiency and cost problems. Thus, this paper develops a spectral element model for the thin plates moving with constant speed under uniform in-plane tension. The concept of Kantorovich method is used in the frequency-domain to formulate the dynamic stiffness matrix. The present spectral element model is evaluated by comparing its solutions with the exact analytical solutions. The effects of moving speed and in-plane tension on the flexural wave dispersion characteristics and natural frequencies of the plate are numerically investigated.

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