Journal of the Architectural Institute of Korea Structure & Construction (대한건축학회논문집:구조계)

Architectural Institute of Korea (대한건축학회)
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Free Vibration Analysis of Plane Structures with Isogeometric Concept

등기하개념을 이용한 평면구조물의 자유진동해석

  • Lee, Sang-Jin (Department of Architectural Engineering, Gyeongsang National University)
  • 이상진 (경상대학교 건축공학과)
  • Received : 2019.06.30
  • Accepted : 2019.09.07
  • Published : 2019.09.30
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Abstract

Isogeometric concept is introduced to carry out free vibration analysis of plane structures. The geometry of structures is represented by using non-uniform rational B-spline surface (NURBS) and its basis function is consistently used in the formulation of plane stress element. In addition, multi-patch strategy is introduced to deal with the openings in building. The performance of the present isogeometric plane stress element is investigated by using five numerical examples. From numerical results, it is found to be that the isogeometric concept can successfully identify reliable natural frequencies and associated mode shapes of plane structures with/without openings in efficient way.

Keywords

Acknowledgement

Supported by : 경상대학교

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