Hydroelastic analysis of cantilever plate in time domain

Fuat Kara, D. Vassalos

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Numerical solutions for the hydroelastic problems of bodies are studied directly in the time domain using Neumann-Kelvin formulation. In the hydrodynamic part of problem, the exact initial boundary value problem is linearized using the free stream as a basis flow, replaced by the boundary integral equation applying Green theorem over the transient free surface Green function. The resultant boundary integral equation is discretized using quadrilateral elements over which the value of the potential is assumed to be constant and solved using the trapezoidal rule to integrate the memory or convolution part in time. In the structure part of the problem, the finite element method is used to solve the hydroelastic problem. The Mindlin plate as a bending element, which includes transverse shear effect and rotary inertia effect are used. The present numerical results show acceptable agreement with experimental, analytical, and other published numerical results.
LanguageEnglish
Pages122-132
Number of pages10
JournalOcean Engineering
Volume34
Issue number1
DOIs
Publication statusPublished - Jan 2007

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Boundary integral equations
Mindlin plates
Convolution
Green's function
Boundary value problems
Hydrodynamics
Finite element method
Data storage equipment

Keywords

  • time domain
  • transient wave Green function
  • Mindlin plate
  • hydroelasticity

Cite this

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Hydroelastic analysis of cantilever plate in time domain. / Kara, Fuat; Vassalos, D.

In: Ocean Engineering, Vol. 34, No. 1, 01.2007, p. 122-132.

Research output: Contribution to journalArticle

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AU - Vassalos, D.

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AB - Numerical solutions for the hydroelastic problems of bodies are studied directly in the time domain using Neumann-Kelvin formulation. In the hydrodynamic part of problem, the exact initial boundary value problem is linearized using the free stream as a basis flow, replaced by the boundary integral equation applying Green theorem over the transient free surface Green function. The resultant boundary integral equation is discretized using quadrilateral elements over which the value of the potential is assumed to be constant and solved using the trapezoidal rule to integrate the memory or convolution part in time. In the structure part of the problem, the finite element method is used to solve the hydroelastic problem. The Mindlin plate as a bending element, which includes transverse shear effect and rotary inertia effect are used. The present numerical results show acceptable agreement with experimental, analytical, and other published numerical results.

KW - time domain

KW - transient wave Green function

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