Abstract
This paper is concerned with the hydroelastic analysis of a pontoon-type circular very large floating structure (VLFS). The coupled fluid-structure interaction problem may be solved by using the modal expansion method in the frequency domain. It involves, firstly, the decomposition of the deflection of a circular Mindlin plate with free edges 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 done in an exact manner. The hydroelastic equation of motion is solved by the Rayleigh-Ritz method for the modal amplitudes, and then the modal responses are summed up to obtain the total response. The very accurate deflections and stress-resultants of uniform circular VLFSs presented herein are valuable as they serve as benchmark solutions to check the numerical methods for hydroelastic analysis of VLFSs.
| Original language | English |
|---|---|
| Pages (from-to) | 423-430 |
| Number of pages | 8 |
| Journal | Engineering Structures |
| Volume | 28 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - Feb 1 2006 |
| Externally published | Yes |
Fingerprint
All Science Journal Classification (ASJC) codes
- Civil and Structural Engineering
Cite this
Benchmark hydroelastic responses of a circular VLFS under wave action. / Watanabe, E.; Utsunomiya, Tomoaki; Wang, C. M.; Hang, Le Thi Thu.
In: Engineering Structures, Vol. 28, No. 3, 01.02.2006, p. 423-430.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Benchmark hydroelastic responses of a circular VLFS under wave action
AU - Watanabe, E.
AU - Utsunomiya, Tomoaki
AU - Wang, C. M.
AU - Hang, Le Thi Thu
PY - 2006/2/1
Y1 - 2006/2/1
N2 - This paper is concerned with the hydroelastic analysis of a pontoon-type circular very large floating structure (VLFS). The coupled fluid-structure interaction problem may be solved by using the modal expansion method in the frequency domain. It involves, firstly, the decomposition of the deflection of a circular Mindlin plate with free edges 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 done in an exact manner. The hydroelastic equation of motion is solved by the Rayleigh-Ritz method for the modal amplitudes, and then the modal responses are summed up to obtain the total response. The very accurate deflections and stress-resultants of uniform circular VLFSs presented herein are valuable as they serve as benchmark solutions to check the numerical methods for hydroelastic analysis of VLFSs.
AB - This paper is concerned with the hydroelastic analysis of a pontoon-type circular very large floating structure (VLFS). The coupled fluid-structure interaction problem may be solved by using the modal expansion method in the frequency domain. It involves, firstly, the decomposition of the deflection of a circular Mindlin plate with free edges 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 done in an exact manner. The hydroelastic equation of motion is solved by the Rayleigh-Ritz method for the modal amplitudes, and then the modal responses are summed up to obtain the total response. The very accurate deflections and stress-resultants of uniform circular VLFSs presented herein are valuable as they serve as benchmark solutions to check the numerical methods for hydroelastic analysis of VLFSs.
UR - http://www.scopus.com/inward/record.url?scp=29244460079&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=29244460079&partnerID=8YFLogxK
U2 - 10.1016/j.engstruct.2005.08.014
DO - 10.1016/j.engstruct.2005.08.014
M3 - Article
AN - SCOPUS:29244460079
VL - 28
SP - 423
EP - 430
JO - Engineering Structures
JF - Engineering Structures
SN - 0141-0296
IS - 3
ER -