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Free Vibration Analysis of Timoshenko Arcs with Elastic Supports Using Transfer of Influence Coefficient

영향계수의 전달을 이용한 탄성 지지된 티모센코 호의 자유진동 해석

  • Choi, Myung-Soo (Department of Maritime Police Science, Chonnam National University) ;
  • Yeo, Dong-Jun (Faculty of Marine Technology, Chonnam National University)
  • 최명수 (전남대학교 해양경찰학과) ;
  • 여동준 (전남대학교 해양기술학부)
  • Received : 2016.01.19
  • Accepted : 2017.03.29
  • Published : 2017.04.30

Abstract

When Timoshenko arcs considering the shear deformation and rotatory inertia have elastic supports, the authors analyze in-plane free vibration of them by the transfer influence coefficient method. This method finds the natural frequencies of them using the transfer of influence coefficient after obtaining the transfer matrix of arc element from numerical integration of the differential equations governing the vibration of arc. In this study, two computer programs were made by the transfer influence coefficient method and the transfer matrix method for analyzing free vibration of Timoshenko arcs. From numerical results of four computational models, we confirmed that the transfer influence coefficient method is a reliable method when analyzing the free vibration of Timoshenko arcs. In particular, the transfer influence coefficient method is a effective method when analyzing the free vibration of arcs with rigid supports.

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