Structural Engineering and Mechanics

  • 제12권1호
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  • Pages.101-118
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  • 2001
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
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Hydroelastic vibration analysis of wetted thin-walled structures by coupled FE-BE-Procedure

  • Rohr, Udo (Department of Mechanical Engineering, University of Rostock) ;
  • Moller, Peter (Department of Mechanical Engineering, University of Rostock)
  • 발행 : 2001.07.25
⟨ 이전 논문 다음 논문 ⟩

초록

The reliable prediction of elastic vibrations of wetted complex structures, as ships, tanks, offshore structures, propulsion components etc. represent a theoretical and numerical demanding task due to fluid-structure interaction. The paper presented is addressed to the vibration analysis by a combined FE-BE-procedure based on the added mass concept utilizing a direct boundary integral formulation of the potential fluid problem in interior and exterior domains. The discretization is realized by boundary element collocation method using conventional as well as infinite boundary element formulation with analytical integration scheme. Particular attention is devoted to modelling of interior problems with both several separate or communicating fluid domains as well as thin-walled structures wetted on both sides. To deal with this specific kind of interaction problems so-called "virtual" boundary elements in areas of cut outs are placed to satisfy the kinematical conditions in partial connected fluid domains existing in realistic tank systems. Numerical results of various theoretical and practical examples demonstrate the performance of the BE-methodology presented.

키워드

참고문헌

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피인용 문헌

  1. Hydroelastic analysis of fluid storage tanks by using a boundary integral equation method vol.275, pp.3-5, 2004, https://doi.org/10.1016/j.jsv.2003.07.034