전달 강성계수법에 의한 격자형 구조물의 자유 진동 해석

Free Vibration Analysis of Lattice Type Structure by Transfer Stiffness Coefficient Method

  • 문덕홍 (부경대학교 공과대학 제어기계공학과) ;
  • 최명수 (부경대학교 공과대학 제어기계공학과) ;
  • 강화중 (부경대학교 공과대학 제어기계공학과)
  • 발행 : 1998.04.01

초록

Complex and large lattice type structures are frequently used in design of bridge, tower, crane and aerospace structures. In general, in order to analyze these structures we have used the finite element method(FEM). This method is the most widely used and powerful tool for structural analysis. However, it is necessary to use a large amount of computer memory and computation time because the FEM resuires many degrees of freedom for solving dynamic problems exactly for these complex and large structures. For overcoming this problem, the authors developed the transfer stiffness coefficient method(TSCM). This method is based on the concept of the transfer of the nodal dynamic stiffness coefficient which is related to force and displacement vector at each node. In this paper, the authors formulate vibration analysis algorithm for a complex and large lattice type structure using the transfer of the nodal dynamic stiffness coefficient. And we confirmed the validity of TSCM through numerical computational and experimental results for a lattice type structure.

키워드

참고문헌

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