A review of physical flexible ship models used for hydroelastic experiments

Hydroelasticity of ships has been established as a necessary form of investigation for both slender ships and high-speed craft. Experimental investigations have spanned various topics, including symmetric and antisymmetric, harmonic and transient, linear and nonlinear responses. Models have varied in size and the way the structure is modelled...

Floating Solar: A Hydroelastic Method

With the climate goals of the Paris Agreement and the European Green Deal, countries need to reduce their carbon footprint and increase their renewable energy production. For countries with high population density, land-based photovoltaics (solar) takes up valuable space. Therefore, solar application at sea is considered. <br/><br/>One of the...

Review of wave interaction with continuous flexible floating structures

Thin continuous flexible floating structures have been shown to have technical and economic advantages for Offshore Floating Photovoltaic (OFPV) installations. In terms of large horizontal dimensions compared to the wave length, these structures are similar to sea ice as well as Very Large Floating Structures (VLFS), e.g. as proposed for...

A monolithic finite element formulation for the hydroelastic analysis of very large floating structures

In this work we present a novel monolithic Finite Element method for the hydroelastic analysis of very large floating structures (VLFS) with arbitrary shapes that is stable, energy conserving, and overcomes the need of an iterative algorithm. The new formulation enables a fully monolithic solution of the linear free-surface flow, described by...

Measuring Hydroelastic Deformation of Very Flexible Floating Structures

For Offshore Floating Photovoltaics (OFPV) applications, thin-film PV panels on lightweight floating support structures gain increasing scientific and commercial interest. Over the past years, several different concepts of thin-film OFPV have been proposed, with the common denominator of floating mattress or blanket-like support structures...

Hydroelastic Analysis of a Multi-Module Very Large Floating Structure

This thesis concerns a hydroelastic analysis of a multi-module very large floating structure (VLFS), analysed in the frequency domain. To this end, the fluid-structure interaction is described by a 2D model, where the VLFS is represented by four floating beams interconnected with rotational springs. The fluid is modelled as an ideal fluid, and...

Approaching hydroelasticity of large vessels with multi-body dynamics

The size of vessels has increased significantly over the last decades and will increase even further in the decades to come. This trend is mainly visible in the size of container ships. A decade ago the largest container ship had a capacity of 13.500 TEU, nowadays the largest container ship has a capacity of almost 24.000 TEU. The capacity of...

The effect of hydrodynamics on the interaction between floating structures and flexible ice floes: A study based on potential theory

The Arctic presents a great opportunity for two major industries. First, since the region is expected to contain a significant amount of hydrocarbon reserves, it is very attractive for the oil and gas industry. Second, the receding extent of sea ice is making the region more accessible for shipping and, therefore, an opportunity is emerging for...

Influence of Lightweight Flexible ULFS on Surface Waves

Floating offshore solar platforms (FOSPs) are envisaged to become Ultra Large Floating Structures (ULFS) with horizontal dimensions of several kilometers. The payload of these structures comprises mainly the photovoltaic panels as well as cabling and limited electrical equipment. Thus the payload per unit area of these FOSPs is very low....

Analytical Modelling of Fluid-Structure Interaction: On Developing Equations to Understanding Rizos' Experiment (2016)

The activities of humans in the marine environment are on a steady rise; this trend follows the exposure of offshore structures and vessels to harsh environmental conditions. On the other hand, there is continuous demand for lighter, faster and more efficient vessels. Technological advancement in composite materials and better design methods...

Validation of a steady BEM-FEM coupled simulation with experiments on flexible small scale propellers

This paper presents numerical and experimental results for the validation of a coupled Boundary Element Method (BEM)-Finite Element Method (FEM) simulation for uniform flows. In the first part of the paper the numerical models and the BEM-FEM coupling are presented. A large part of the paper is dedicated to the validation procedure which has...

Aircushion Supported Mega-Floaters

The increase of the global population and expanding coastal mega-cities will necessitate an innovative pursuit of the utilization of the ocean space in which mega-floaters will play an important role in the future. These types of structures are very large floating artificial islands that can be used for various facilities and purposes similar to...

Free-surface wave interaction with a thick flexible dock or very large floating platform

Hydroelastic analysis of very large floating structures

Due to the growth of their population, urban development and the corresponding expansion of land use, several countries have decided to build artificial islands in the sea to decrease the pressure on the heavily used land space. The reclamation of the land from the sea is already widely applied, however, there is also an attractive new...

Local hydroelastic response of ship structures under impact loads from water (slamming)

Wave propagation, localization and dispersion in a gradient-dependent medium

Wave propagation and localization in a rate-dependent cracked medium-model formulation and one-dimensional examples