Research on hydroelastic responses of VLFS : Recent progress and future work

TLDR

The paper focuses on analytical calculation methods for VLFS hydroelastic responses, omitting detailed experimental work. The study reviews recent research on predicting hydroelastic responses of very large floating structures and introduces a new calculation method for general time‑dependent problems as future work. It surveys pontoon‑type and column‑supported VLFS models, distinguishing frequency‑domain and time‑domain analyses, and presents a hierarchical interaction theory for hydrodynamic interactions among many columns with accompanying equations and numerical results. The hierarchical interaction theory is demonstrated with equations and numerical results, illustrating its effectiveness for large‑column VLFS analysis.

Abstract

This paper presents a review of recent studies on the prediction of hydroelastic responses of a very large floating structure (VLFS). It is divided into the pontoon type and column-supported type structures. Studies on the pontoon type are divided further into the frequency-domain and time-domain analyses. A new calculation method for general time-dependent problems is also described, which is one of the future works required. The hierarchical interaction theory, developed recently by the author for analyzing hydrodynamic interactions among a large number of columns, is explained with some equations and numerical results. However, experimental work is not reviewed in detail, because main interest in this paper is placed on analytical calculation methods.