Numerical and experimental studies on dynamic gangway response between monohull flotel and FPSO in non-parallel side-by-side configuration

作者：Wei Huang; Binbin Li; Xiaobo Chen; Rodrigo Araujo

来源：Ocean Engineering, 2018, 149: 341-357.

DOI：10.1016/j.oceaneng.2017.12.027

• Multi-body hydrodynamics
• Gangway
• Side-by-side
• Flotel
• Accommodation vessel
• Roll damping
• Stochastic linearization

As an important equipment, gangway and its safety are crucial during offshore operation, and its dynamic response raises concerns especially when gangway is deployed between two free-floating structures. In this paper, the response of a passive telescopic gangway between monohull flotel and FPSO in nonparallel side-by-side configuration is investigated numerically and experimentally. The numerical model is established within the frequency domain, where the hydrodynamics are solved by 3D potential flow theory. The nonlinear factor, roll damping, is treated by using stochastic linearization. The connection between gangway and vessel is assumed to be an ideal joint, subsequently, gangway responses are derived by properly taking into account various motions of flotel and FPSO. Gangway responses such as its extension and rotation are presented in simulation as well as measurement. To interpret physics, firstly vessel global motions in single-body and multi-body cases are compared; then, relative motio...

• 出版日期2018