Computationally efficient techniques in the hydroelasticity analysis of very large floating structures

✍ Scribed by Suqin Wang; R.C. Ertekin; H.R. Riggs

• Publisher: Elsevier Science
• Year: 1997
• Tongue: English
• Weight: 729 KB
• Volume: 62
• Category: Article
• ISSN: 0045-7949
• DOI: 10.1016/s0045-7949(96)00268-4

✦ Synopsis

Two techniques are introduced in the three-dimensional hydroelastlcity theory to increase the computational efficiency for the determination of the dynamic response of very large floating structures (VLFS). One technique is related to the convergence of the Green function and its derivatives, namely the introduction of a criterion used to truncate the influence of the Green function and its derivatives. The other involves using an iterative sparse solver for the linear system of equations. The principle motivation behind the application of these two techniques stems from the fact that a source makes a very small contribution to the potential at a point "far away" from the source point. By employing these two techniques in the hydroelastic analysis of a VLFS, the CPU time and required storage are considerably reduced, and therefore it is now possible to analyze the dynamics of a VLFS as large as a floating airport by using the three-dimensional panel method.