한국소음진동공학회논문집 (Transactions of the Korean Society for Noise and Vibration Engineering)

  • 제11권5호
  • /
  • Pages.101-107
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  • 2001
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  • 1598-2785(pISSN)
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  • 2287-5476(eISSN)
한국소음진동공학회 (The Korean Society for Noise and Vibration Engineering)
권호 표지

여러 개의 스프링으로 탄성 지지된 수평 곡선보의 자유진동

Free Vibrations of Horizontally Curved Beams with Multiple Elastic Springs

  • 이병구 (원광대학교 토목환경공학과) ;
  • 진태기 (원광대학교 토목환경공학과) ;
  • 최규문 (원광대학교 토목환경공학과) ;
  • 이태은 (원광대학교 토목환경공학과)
  • 발행 : 2001.08.01
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초록

This paper deals with the free vibrations of horizontally curved beams with mu1tiple elastic springs. Taking into account the effects of rotatory Inertia and shear deformation. differential equations governing the free vibrations of such beams are derived, In which each e1astic spring is modeled as a discrete Winkler foundation with very short longitudinal length. Differential equations are solved numerically to calculate natural frequencies and mode shapes. In numerical examples, the circular, Parabolic. sinusoidal and elliptic curved beams are considered. The parametric studies are conducted and the lowest four frequency parameters are reported In tables and figures as the non-dimensional forms. Also the typical mode shapes are presented.

키워드

참고문헌

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  2. Journal of Sound and Vibration v.51 Natural Frquencies of Timoshenko Beams on Pasternak Foundation Wang T.M.;Stephens J.E.
  3. Journal of Applied Mechanics v.47 The Dynamically Loaded Circular Beam on an Elastic Foundation Panayotounakos D.E;Teocaris P.S.
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  5. Journal of Sound and Vibration v.149 Free Vibration of a Beam Support on a Stepped Elastic Foundation Kukla S.
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  7. 한국강구조학회 논문집 v.6 no.3 전단층을 갖는 탄성지반 위에 놓인 보의 자유진동 해석 이병구
  8. Journal of Applied Mechanics v.19 Free Vibrations of Stepped Beams with Inermediate Elastic Foundation De Rosa M.A.
  9. 한국전산구조공학회 논문집 v.11 no.2 탄성지반 위에 놓인 곡선형 Timoshenko 보의 자유진동 이병구;오상진;이재만
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