Equivalent simulation method for current load of single point mooring system in stormy wave environment

Abstract

The invention discloses a simulation method for a single-point mooring system model test flow load in a stormy wave environment, and the method comprises the steps that a pull rope, a fixed pulley block and a weight are used to apply a horizontal pull force in the same direction as the flow load to an FPSO model, and a connection point I is arranged in the middle of a ship body tail sealing plate of the model in the transverse direction when a head wave flow load is simulated, wherein the connecting point I is as high as the gravity center of the model; the fixed pulley block is connected to a trailer, then one end of a pull rope is connected to a connection point I, then the pull rope is horizontally led out and sequentially wound around a lower end pulley and an upper pulley, finally, a force application end is led out downwards, a weight is applied to the force application end, and when a non-head wave flow load is simulated, a connection point II is longitudinally arranged in the middle of a bulwark, opposite to the flow load, of an FPSO model; and the horizontal direction of the pull rope is planned along the flow load direction. According to the method, the movement and stress of the FPSO single-point mooring system under the working sea condition can be simulated and forecasted more truly, and a scientific basis is provided for design, construction and safe production and operation of the FPSO.

Description

technical field [0001] The invention relates to the technical field of single-point mooring system model tests, in particular to an equivalent simulation method for flow load of a single-point mooring system in a windy and wave environment. Background technique [0002] In recent years, my country's total oil consumption has been increasing year by year, and land oil resources are no longer enough to meet our needs. Therefore, exploration and production activities are gradually developing in deep sea areas farther offshore. FPSO (Floating Production Storage and Offloading vessels) is a comprehensive large-scale offshore oil exploration engineering equipment integrating oil and gas development, production processing, storage and transportation, and personnel living. As the resource strategies of countries around the world continue to develop into the deep sea, FPSO has become the mainstream facility for ocean development today. According to the sea conditions in different se...

AI Technical Summary

Problems solved by technology

In the test, the wind and wave simulations are realized by special wind turbines and wave generators respectively, but it is difficult to realize the simulation of the real flow field, and most ocean engineering pools are not equipped with relevant facilities at present

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