Journal of the Computational Structural Engineering Institute of Korea (한국전산구조공학회논문집)

Computational Structural Engineering Institute of Korea (한국전산구조공학회)
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Effect of an Intermediate Support on the Stability of a Beam resting on Elastic Foundation Subjected to Follower Force

종동력을 받는 탄성기초위에 놓인 보의 안정성에 미치는 중간 지지의 효과

  • Published : 2007.12.30
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Abstract

This paper discussed on the effect of an intermediate support on the stability of a beam resting on elastic foundation subjected to follower force. The stability and dynamic responses of a beam resting on elastic foundation subjected to follower force are analyzed based on the finite element method. The dynamic responses of the system are studied by the mode superposition method to observe the damping rate of the motion. The beam resting on elastic foundation subjected to follower force loses its stability by flutter type or divergence type, depending on the location of the intermediate support.

본 연구는 종동력을 받는 탄성기초위에 놓여 있는 보에 있어서 중간 지지가 보의 안정성에 미치는 영향에 대하여 논하고 있다. 해석에 있어서, 종등력을 받는 탄성기초위에 놓여 있는 보의 안정성과 동적응답은 유한요소법을 이용하였다. 또, 동적 응답에 대한 진동의 감쇠를 관찰하기 위하여 모드 중첩법이 사용되었다. 해석 결과, 종동력을 받는 탄성기초위에 놓여 있는 보는 중간 지지의 위치에 따라 플러터 타입과 다이버젼스 타입에 의해 안정성을 잃게 된다.

Keywords

References

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