Journal ArticleDOI
A B-spline Galerkin scheme for calculating the hydroelastic response of a very large floating structure in waves
Reads0
Chats0
TLDR
In this article, an effective scheme for computing the wave-induced hydroelastic response of a very large floating structure is presented, and a validation of its usefulness is provided. But the scheme uses bi-cubic B-spline functions to represent unknown pressures, and the Galerkin method to satisfy the body boundary conditions.Abstract:
This paper presents an effective scheme for computing the wave-induced hydroelastic response of a very large floating structure, and a validation of its usefulness. The calculation scheme developed is based on the pressure-distribution method of expressing the disturbance caused by a structure, and on the mode-expansion method for hydroelastic deflection with the superposition of orthogonal mode functions. The scheme uses bi-cubic B-spline functions to represent unknown pressures, and the Galerkin method to satisfy the body boundary conditions. Various numerical checks confirm that the computed results are extremely accurate, require relatively little computational time, and contain few unknowns, even in the region of very short wavelengths. Measurements of the vertical deflections in both head and oblique waves of relatively long wavelength are in good agreement with the computed results. Numerical examples using shorter wavelengths reveal that the hydroelastic deflection does not necessarily become negligible as the wavelength of incident waves decreases. The effects of finite water depth and incident wave angle are also discussed.read more
Citations
More filters
Journal ArticleDOI
Hydroelastic analysis of pontoon-type VLFS: a literature survey
TL;DR: A literature survey of the research on hydroelastic analysis of pontoon-type very large floating structures (VLFSs) is presented in this paper, where the reader is provided with the basic assumptions, equations and boundary conditions.
Journal ArticleDOI
A review of Very Large Floating Structures (VLFS) for coastal and offshore uses
TL;DR: In this article, a review of the concept of VLFS, showing how they are deployed for both coastal and offshore areas, is presented, where the MOB project (Mobile Offshore Base) is the design that has been most fully developed.
Journal ArticleDOI
Very Large Floating Structures: Applications, Research and Development
Chien Ming Wang,Zhi Yung Tay +1 more
TL;DR: Very large floating structures (VLFS) have attracted the attention of architects, city planners and engineers because they provide an exciting and environmentally friendly solution for land creation from the sea as opposed to the traditional land reclamation method as mentioned in this paper.
Journal ArticleDOI
Review of hydroelasticity theories for global response of marine structures
TL;DR: Application of hydroelastic theories to analysis of very large floating structures (VLFS) and papers from China and Japan (in native languages) are reviewed and discussed in details.
Journal ArticleDOI
Hydroelastic analysis of flexible floating interconnected structures
TL;DR: In this paper, the authors used three-dimensional hydroelasticity theory to predict the response of flexible floating interconnected structures, and extended the theory to take into account hinge rigid modes, which are calculated from a numerical analysis of the structure based on the finite element method.
References
More filters
Journal ArticleDOI
Wave effects on deformable bodies
TL;DR: In this paper, the linearized frequency-domain analysis of wave radiation and diffraction by a three-dimensional body in a fixed mean position is extended to a variety of deformable body motions.
Journal ArticleDOI
Distributions of sources and normal dipoles over a quadrilateral panel
TL;DR: In this paper, the potential due to a distribution of sources or normal dipoles on a flat quadrilateral panel is evaluated for the cases where the density of the singularities is constant, linear, bilinear, or of arbitrary polynomial form.
Journal ArticleDOI
On the Hydoroelastic Response of Box-Shaped Floating Structure with Shallow Draft
Kiyokazu Yago,Hisayoshi Endo +1 more
TL;DR: In this article, the authors carried out tank tests to investigate hydroelastic response of the prototype structure using its scale model, which was designed on the basis of the law of similitude and has elastically similar bending rigidity with 300 meter long prototype structure.
Journal ArticleDOI
Hydroelastic Responses of Pontoon Type Very Large Floating Offshore Structure
TL;DR: In this article, the elastic response of a large pontoon type structure was estimated by using the modal analysis of 2-D beam model, which consists of many box type rigid floats that were connected by longitudinal and lateral elastic beams.
Journal ArticleDOI
Motions of a floating elastic plate in waves
Mikio Takaki,Xiechong Gu +1 more
TL;DR: In this article, a finite element method was used to estimate the dry-eigenmodes of a completely free plate in head and quartering seas, and then the hydrodynamic pressure exerted on the plate was evaluated by combining a pressure distribution method and the dry eigenmode.