Comparison Study on Structural Dynamic Modelings Employing Single Reference Frame

단일 기준 틀을 사용한 구조 동역학 모델링 비교 연구

  • 김정민 (한양대학교 대학원 기계설계학과) ;
  • 유홍희 (한양대학교 공과대학 기계공학부)
  • Published : 2004.12.01


In this paper, modeling methods for the structural dynamic analysis employing single reference frame are presented and their modal and transient analysis results are compared. The geometric stiffening effects often occur when structures undergo large overall motion. These effects were considered in several structural previous modeling methods but the role of reference frame has never been scrutinized. In this study, modeling methods employing single reference frame are presented, and their numerical results are compared. The results show that discrepancy between the two modeling methods increases as the eccentricity of the structural system and the magnitude of the large overall motion increase.


Reference Frame;Finite Element Method;Geometric Stiffening Effect;Fore-Shortening Effect


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