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

  1. Armand, J.-L. and Orsero, P. (1979), "A method for evaluating the hydrodynamic added mass in ship hullvibrations", Transactions of SNAME 87, 99-120.
  2. Brebbia, C.A., Telles, J.C.F. and Wrobel, L.C. (1984), "Boundary element techniques", Theory and Applicationsin Engineering, Berlin, Heidelberg, New York, Tokyo, Springer.
  3. Bettes, P. and Bettes, J.A. (1984), "Infinite elements for static problems", Eng. Comput., 1, March, 4-16. https://doi.org/10.1108/eb023555
  4. Camisetti, C. et al. (1979), "Investigation of the containership vibration behaviour by finite element method atdesign stage", Int. Conf. on Eng. Application of the Finite Element Method, Hovik, Norway, May 9-11, 3.1-3.30.
  5. Gessner, W., Schmitz, K.-P., Ahrens, J. and Herzberg, L. (1983), "Three-dimensional finite element models forcalculation of global ship vibrations", Schiffbauforschung 22, 4, 205-213.
  6. Hakala, M.K. (1986), "Application of the finite element method to fluid-structure interaction in ship vibration",Espoo September, Research Reports 433, Technical Research Centre of Finland.
  7. Jefferies, H. (1998), "Fatigue strength of a bulb profile cut-out subject to propeller excitation", Diploma Thesis,Hamburg.
  8. Landweber, L. (1957), "Added mass of lewis forms oscillating in a free surface", Proc. Symposium on theBehaviour of Ships in a Seaway, Wageningen, the Netherlands.
  9. Lewis, F.M. (1929), "The inertia of the water surrounding a vibrating ship", SNAME, 37.
  10. Möller, P. and Röhr, U. (2000), "Hydrodynamic mass and damping matrices", Research Report of the Project"Life Cycle Design" (BMBF), University of Rostock.
  11. Payer, H.G. (1981), "The influence of vibrations on the strength of ships", Jahrbuch der SchiffbautechnischenGesellschaft, Berlin, Heidelberg, New York, Springer, 75, 290-294.
  12. Payer, H.G. and Asmussen, I. (1985), "Vibration response on propulsion-efficient container vessels", SNAMETransactions, 93, 147-164.
  13. Payer, H.G. and Pleß, E. (1985), "Design and dimensioning of open type vessels with long hatches", Jahrbuchder Schiffbautechnischen Gesellschaft, Berlin, Heidelberg, New York. Springer, 79, 323-326.
  14. Reich M. (1998), "Development of infinite elements with semi-analytical integration for application in directboundary element method", Diploma Thesis, University of Rostock.
  15. Skaar, K.T. and Carlsen, C.A. (1979), "Modelling aspects for finite element analysis of ship vibration", Int. Conf.on Engineering Application of the Finite Element Method, Hovik, Norway, May 9-11, 4.1-4.30.
  16. Vladimirov, V.S. (1977), Equations of Mathematical Physics, Berlin, Verlag der Wissenschaften.

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