Time Domain Analysis on the Dynamic Response of a Flexible Floating Structure to Waves
Publication: Journal of Engineering Mechanics
Volume 128, Issue 1
Abstract
A time-domain numerical method is developed to analyze the hydroelastic responses of flexible floating structures to waves; in which, the boundary element method is applied to evaluate the fluid motion and the finite-element method to analyze the elastic deformation of structure. The dynamic wave-structure interaction is simulated by prescribing the conditions on a wave generation boundary for each time step and by satisfying the continuity of the pressure and displacement on the fluid-structure interface. A time-domain solution is obtained in a predictor-corrector scheme and through a time-stepping computation. The effect of space and time discretizations on the convergence and stability of solution for regular, random and solitary waves is discussed by comparing among numerical solutions. The validity of the present method is verified by comparing it with the experimental results for the three kinds of waves mentioned. Further, the fission of a solitary wave under a flexible floating structure is observed both in numerical analysis and experiments.
Get full access to this article
View all available purchase options and get full access to this article.
References
Endo, H., and Hosino, K. (1986). “Parametric study on the dynamic response of floating compliant structures in regular waves.” Proc., 5th Int. Conf. on Offshore Mechanics and Arctic Engineering, ASME, New York, Vol. 3, pp. 194–199.
Grilli, S. T., and Svendsen, I. A.(1990). “Corner problems and global accuracy in the boundary element solution of nonlinear wave flows.” Eng. Analysis Boundary Elements, 7(4), 178–194.
Hamamoto, T., Suzuki, A., and Fujita, K. (1997). “Hybrid dynamic analysis of large tension leg floating structures using brick elements.” Proc., 16th Int. Conf. on Offshore Mechanics and Arctic Engineering, ASME, New York, Vol. 4, 195–202.
Maeda, H., Masuda, K., Miyajima, S., and Ikoma, T.(1995). “Hydroelastic responses of pontoon type very large floating offshore structure.” J. Soc. Naval Architects Jpn., 178, 203–212.
Nakamura, T., and Tanaka, Y.(1991). “Numerical generation of nonlinear gravity waves by line source distribution and open boundary scheme.” Proc. Coastal Eng. JSCE, 38(1), 11–15.
Ohmatsu, S.(1997). “Numerical calculation of hydroelastic responses of pontoon type VLFS.” J. Soc. Naval Architects Jpn., 182, 329–339.
Ohyama, T., and Nadaoka, K.(1991). “Development of a ‘numerical wave tank’ in nonlinear and irregular wave field with non-reflecting boundaries.” J. Jpn. Soc. Civil Eng., 429(II-15), 77–86.
Shiraishi, S., Yoneyama, H., and Ueda, S.(1994). “A study on the characteristics of motions of long flexible floating structure in waves.” Proc. Coastal Eng. JSCE, 41(2), 896–900.
Toki, N.(1979). “A study on the behavior of huge floating structure in regular waves.” J. Soc. Naval Architects Jpn., 146, 185–194.
Utsunomiya, T., Watanabe, E., Wu, C., Hayashi, N., Nakai, K., and Sekita, K. (1994). “Wave response analysis of a flexible floating structure by BE-FE combination method.” Proc., 5th Int. Offshore and Polar Eng. Conf., ISOPE, Calif., 400–405.
Yamashita, S., and Harada, T. (1997). “A practical method of hydro-elastic analysis of a very large floating structure in head sea.” Proc., 16th Int. Conf. on Offshore Mechanics and Arctic Engineering, ASME, New York, Vol. 4, 99–106.
Yasuzawa, Y., Kagawa, K., Kawano, D., and Kitabayashi, K. (1997). “Dynamic response of a large flexible floating structure in regular waves.” Proc., 16th Int. Conf. on Offshore Mechanics and Arctic Engineering, ASME, New York, Vol. 4, 187–194.
Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 128 • Issue 1 • January 2002
Pages: 48 - 56
Copyright
Copyright © 2002 American Society of Civil Engineers.
History
Received: Sep 8, 2000
Accepted: May 24, 2001
Published online: Jan 1, 2002
Published in print: Jan 2002
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.