Journal of KSNVE (소음진동)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Modeling and Its Modal Analysis for Distributed Parameter Frame Structures using Exact Dynamic Elements

엄밀한 동적 요소를 이용한 프레임 구조물의 모델링 및 모드 해석

  • 김종욱 (금오공과대학교 대학원 기계공학부) ;
  • 홍성욱 (금오공과대학교 기계공학부)
  • Published : 1999.10.01
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Abstract

This paper introduces modeling and its modal analysis procedure for exact and closed form solution of in-plane vibrations of general Timoshenko frame structures using exact dynamic element method(EDEM). The derivation procedure of the exact system dynamic matrices for Timoshenko beam frames is described. A new modal analysis procedure is also proposed since the conventional modal analysis schemes are not adequate for the proposed, exact system dynamic matrix. The proposed method provides exact modal parameters as well as all kinds of closed form solutions for general frame structures. Two numerical examples are presented for validating and illustrating the proposed method. The numerical study proves that the proposed method is useful for dynamic analysis of frame structures.

Keywords

References

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