Hydroelastic analysis of a hybrid-type VLFS in water of variable depth

Tomoaki Utsunomiya, Takatoshi Noguchi, Tadasu Kusaka, Eiichi Watanabe, Syuji Yamamoto, Tatsunori Ogamo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

This paper presents a hydroelastic analysis of a hybrid-type VLFS in variable sea depth. The VLFS model is the prototype of a floating runway with dimension 3120m in length, 524m in width, 1.5m in draft for pontoon part and 11.5m in draft for semisubmersible part. A three dimensional Finite Element model using beams and quadrilateral plate elements are used in the hydroelastic analysis in order to obtain an accurate approximation. An equivalent plate model having the same eigenfrequencies and eigenmodes in air is also used in the analysis. The results using the 3D model and the plate model have been compared and their agreement is satisfying. In order to examine the variable sea depth at the expected site, the hydroelastic analysis is carried out for a flat bottom, a constant slope, and a variable sea depth case. The effect of variable sea depth is found to be significant.

Original languageEnglish
Title of host publication2008 Proceedings of the 27th International Conference on Offshore Mechanics and Arctic Engineering, OMAE 2008
Pages733-742
Number of pages10
DOIs
Publication statusPublished - 2008
Externally publishedYes
Event27th International Conference on Offshore Mechanics and Arctic Engineering, OMAE 2008 - Berlin, Germany
Duration: Jun 9 2008Jun 13 2008

Publication series

NameProceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE
Volume3

Other

Other27th International Conference on Offshore Mechanics and Arctic Engineering, OMAE 2008
CountryGermany
CityBerlin
Period6/9/086/13/08

All Science Journal Classification (ASJC) codes

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

Fingerprint Dive into the research topics of 'Hydroelastic analysis of a hybrid-type VLFS in water of variable depth'. Together they form a unique fingerprint.

  • Cite this

    Utsunomiya, T., Noguchi, T., Kusaka, T., Watanabe, E., Yamamoto, S., & Ogamo, T. (2008). Hydroelastic analysis of a hybrid-type VLFS in water of variable depth. In 2008 Proceedings of the 27th International Conference on Offshore Mechanics and Arctic Engineering, OMAE 2008 (pp. 733-742). (Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE; Vol. 3). https://doi.org/10.1115/OMAE2008-57180