Browse > Article
http://dx.doi.org/10.1016/j.ijnaoe.2017.05.002

A study of hydroelastic behavior of hinged VLFS  

Sun, Yonggang (Wuxi First Scientific Research Institute)
Lu, Da (State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University)
Xu, Jin (PLA University of Science and Technology)
Zhang, Xiantao (Center for Offshore Foundation Systems, School of Civil, Environmental and Mining Engineering, University of Western Australia)
Publication Information
International Journal of Naval Architecture and Ocean Engineering / v.10, no.2, 2018 , pp. 170-179 More about this Journal
Abstract
This paper introduces a new method to study the hydroelastic behavior of hinged Very Large Floating Structures (VLFSs). A hinged two-module structure is used to confirm the present approach. For each module, the hydroelasticity theory proposed by Lu et al. (2016) is adopted to consider the coupled effects of wave dynamics and structural deformation. The continuous condition at the connection position between two adjacent modules is also satisfied. Then the hydroelastic motion equation can be established and numerically solved to obtain the vertical displacement, force and bending moment of the hinged structure. The results calculated by the present new method are compared with those obtained using three-dimensional hydroelasticity theory (Fu et al., 2007), which shows rather good agreement.
Keywords
Hydroelasticity; VLFS; Hinged structures; Frequency domain; Multi-body;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Fu, S., Moan, T., Chen, X., Cui, W., 2007. Hydroelastic analysis of flexible floating interconnected structures. Ocean Eng. 34 (11), 1516-1531.   DOI
2 Gao, R.P., Tay, Z.Y., Wang, C.M., Koh, C.G., 2011. Hydroelastic response of very large floating structure with a flexible line connection. Ocean Eng. 38 (17), 1957-1966.   DOI
3 Gou, Y., Teng, B., Ning, D.Z., 2004. Interaction effects between wave and two connected floating bodies. Eng. Sci. 6 (7), 75-80.
4 Kim, B.W., Hong, S.Y., Kyoung, J.H., Cho, S.K., 2007. Evaluation of bending moments and shear forces at unit connections of very large floating structures using hydroelastic and rigid body analyses. Ocean Eng. 34 (11), 1668-1679.   DOI
5 Li, Q.Y., Wang, N.C., Yi, D.Y., 1986. Numerical Analysis. Hua Zhong University of Science Press (In Chinese).
6 Lu, D., Fu, S., Zhang, X., Guo, F., Gao, Y., 2016. A method to estimate the hydroelastic behaviour of VLFS based on multi-rigid-body dynamics and beam bending. Ships Offshore Struct. 1-9.
7 McGuire, W., Gallagher, R.H., Ziemian, R.D., 2000. Matrix Structural Analysis, second ed. Faculty Books, p. 7.
8 Newman, J.N., 1994. Wave effects on deformable bodies. Appl. Ocean Res. 16 (1), 47-59.   DOI
9 Pan, Y., Sahoo, P.K., Lu, L., 2016. Numerical study of hydrodynamic response of mooring lines for large floating structure in South China Sea. Ships Offshore Struct. 11 (7), 774-781.   DOI
10 Riyansyah, M., Wang, C.M., Choo, Y.S., 2010. Connection design for two-floating beam system for minimum hydroelastic response. Mar. Struct. 23 (1), 67-87.   DOI
11 Tsubogo, T., Okada, H., 1998. An estimation method of dynamic behavior of huge mat-type floating structures using simple beam modeling. In: American Society of Mechanical Engineers, 17th International Conference on Offshore Mechanics and Arctic Engineering (USA), p. 8.
12 Tuitman, J.T., Malenica, S., Van'T Veer, R., 2012. Generalized modes in time-domain seakeeping calculations. J. Ship Res. 56 (4), 215-233.   DOI
13 Wu, Y.S., 1984. Hydroelasticity of Floating Bodies. Brunel University, UK (Ph.D. Thesis).
14 Yago, K., Endo, H., 1996. On the hydroelastic response of box-shaped floating structure with shallow draft. J. Soc. Naval Archit. Jpn. 180, 341-352
15 Wu, H.L., Chen, X.J., Huang, Y.X., Wang, B., 2014. Influence of the legs underwater on the hydrodynamic response of the multi-leg floating structure. Ships Offshore Struct. 9 (6), 578-595.   DOI