한국기계가공학회지 (Journal of the Korean Society of Manufacturing Process Engineers)

  • 제9권3호
  • /
  • Pages.49-55
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  • 2010
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  • 1598-6721(pISSN)
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  • 2288-0771(eISSN)
한국기계가공학회 (The Korean Society of Manufacturing Process Engineers)
권호 표지

경사종동력을 받는 T형상 크랙 보의 안정성 해석

Stability Analysis of Cracked Cantilever T-beams Subjected to Subtangential Follower Force

  • 손익수 (동의대학교 기계공학과) ;
  • 조정래 (한국폴리텍 VI대학 달성캠퍼스 자동차과)
  • 투고 : 2010.04.02
  • 심사 : 2010.05.13
  • 발행 : 2010.06.30
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초록

In this paper, the stability of cracked cantilever T-beams subjected to subtangential follower force is investigated. Also, the effect of subtangential coefficient and crack on the natural frequency of T-beams is presented. Based on the Euler-Bernoulli beam theory, the equation of motion is derived by the energy expressions using extended Hamilton's Principle. The crack is assumed to be in the first mode of fracture and to be always opened during the vibrations. The values of critical follower force and the stability maps of cantilever T-beams are obtained according to the subtangential coefficient and crack severity. The results of this study will contribute to the safety testing and the stability estimation of cracked T-beams subjected to follower force.

키워드

참고문헌

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