|
|||||
|
|
Second-order hydroelastic analysis of a floating plate in multidirectional irregular waves |
|
| Authors: | Xujun Chen Torgeir Moan Shixiao Fu Weicheng Cui |
| Affiliation: | aCentre for Ships and Ocean Structures, Norwegian University of Science and Technology, N-7491 Trondheim, Norway bEngineering Institute of Engineering Corps, PLA University of Science and Technology, Nanjing 210007, China cChina Ship Scientific Research Center, Wuxi 214082, China |
| Abstract: | Based on an analysis of second-order hydrodynamic forces induced by coupling of first-order wave potentials, second-order hydroelastic equations are established and solved in the frequency domain. The responses of a very large floating structure in multidirectional irregular waves are studied. The characteristics of the difference and sum frequency coordinates are discussed in detail; peaks can be found at the difference and sum frequencies close to the wet resonant frequencies of each mode. We present and analyze the maximum vertical displacement of different points as well as the time history of the vertical displacements of selected points. The differences of the combined (the summation of the linear and non-linear responses) and linear displacements of the selected points are calculated. Our results demonstrate that non-linear fluid forces influence the total responses of the referenced floating structure. |
| Keywords: | Floating plate Non-linear hydroelasticity Frequency domain Multidirectional waves |
| 本文献已被 ScienceDirect 等数据库收录！ | |