Hydroelastic Analysis of Pontoon-Type Circular VLFS

Eiichi Watanabe, Tomoaki Utsunomiya, Chien Ming Wang, Yang Xiang

Research output: Contribution to conferencePaper

9 Citations (Scopus)

Abstract

This paper is concerned with the hydroelastic analysis of a pontoon-type circular very large floating structure (VLFS). For more accurate evaluation of the stress-resultants, the more refined Mindlin plate theory has been adopted to model the circular plate, instead of the commonly used classical thin plate theory. The analysis of VLFS is carried out in the frequency domain using the modal expansion method. The deflection of a circular Mindlin plate with free edges is firstly decomposed into vibration modes which can be obtained in an exact manner. Then the hydrodynamic diffraction and radiation forces are evaluated by using eigenfunction expansion matching method that is also in an exact manner. The Galerkin's method is used to calculate the modal amplitudes. The method and numerical examples presented herein can serve as accurate benchmark solutions for numerical methods such as BEM for analyzing pontoon-type VLFSs.

Original languageEnglish
Pages93-99
Number of pages7
Publication statusPublished - Dec 1 2003
Externally publishedYes
EventProceedings of the Thirteenth (2003) International Offshore and Polar Engineering Conference - Honolulu, HI, United States
Duration: May 25 2002May 30 2003

Other

OtherProceedings of the Thirteenth (2003) International Offshore and Polar Engineering Conference
CountryUnited States
CityHonolulu, HI
Period5/25/025/30/03

Fingerprint

Pontoons
Mindlin plates
Galerkin methods
Eigenvalues and eigenfunctions
Numerical methods
Hydrodynamics
Diffraction
Radiation

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Ocean Engineering
  • Mechanical Engineering

Cite this

Watanabe, E., Utsunomiya, T., Wang, C. M., & Xiang, Y. (2003). Hydroelastic Analysis of Pontoon-Type Circular VLFS. 93-99. Paper presented at Proceedings of the Thirteenth (2003) International Offshore and Polar Engineering Conference, Honolulu, HI, United States.

Hydroelastic Analysis of Pontoon-Type Circular VLFS. / Watanabe, Eiichi; Utsunomiya, Tomoaki; Wang, Chien Ming; Xiang, Yang.

2003. 93-99 Paper presented at Proceedings of the Thirteenth (2003) International Offshore and Polar Engineering Conference, Honolulu, HI, United States.

Research output: Contribution to conferencePaper

Watanabe, E, Utsunomiya, T, Wang, CM & Xiang, Y 2003, 'Hydroelastic Analysis of Pontoon-Type Circular VLFS', Paper presented at Proceedings of the Thirteenth (2003) International Offshore and Polar Engineering Conference, Honolulu, HI, United States, 5/25/02 - 5/30/03 pp. 93-99.
Watanabe E, Utsunomiya T, Wang CM, Xiang Y. Hydroelastic Analysis of Pontoon-Type Circular VLFS. 2003. Paper presented at Proceedings of the Thirteenth (2003) International Offshore and Polar Engineering Conference, Honolulu, HI, United States.
Watanabe, Eiichi ; Utsunomiya, Tomoaki ; Wang, Chien Ming ; Xiang, Yang. / Hydroelastic Analysis of Pontoon-Type Circular VLFS. Paper presented at Proceedings of the Thirteenth (2003) International Offshore and Polar Engineering Conference, Honolulu, HI, United States.7 p.
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