Mooring Effect on Wave Frequency Response of Round Shape FPSO

Abstract

This paper presents the motions response of moored Round Shape FPSO model due to the wave effect. The proposed of this research is analyzed the possibility of model motion response affected by different mooring system attach to the model. Model experiment was applied in this research to collect motion data for the study. Besides, the numerical simulation using diffraction potential, diffraction potential with Morison Heave correction and ANSYS frequency domain study were also applied in this research to generate comparative data to the experimental results. To investigate the effect of the mooring system to motion response, the model experiment was firstly conducted by attached model scale catenary mooring lines to Round Shape FPSO model. After that, the experiment was repeated by attached model scale taut mooring lines to the same model. The results obtain from the regular wave experiment tests and numerical simulation test were presented in this paper. This research concluded that the mooring systems would not give significant effect to wave frequency motion response after compared the motion result obtain from model experiment conducted using different mooring system.

Geometric analysis of pontoon and mooring line towards hydrodynamic response

“…Apart from considering the Pontoon parameters, the anchor system also needs to pay attention to parameters starting from the shape, length, diameter and location and number of mooring line systems [13]. There are three important parameter must be scaled correctly to ensure the mooring lines are properly scaled for the selected environment, which are mooring line pretension, mooring line stiffness and restoring force mooring line to limit movement caused by external loads [24] [25].…”

Study on Offloading Operation of Cylindrical FPSO Under Extreme Weather

“…Wu introduces and analyzes the features and status of FPSO and sums up the characteristics of the cylindrical FPSO [4]. C. L. Siow et al conduct the response simulation of a cylindrical FPSO to the motion of surge, sway and heave under the wave action through numerical calculation and model test [5,6]. Marcos Cueva and Fernando Faria study the hydrodynamic response of heave and pitch motion of cylindrical FPSO in conjunction with the model test and numerical simulation under the various waves action [7].…”