Deep sea operation platform motion response test system and test method

Abstract

The invention relates to a deep sea operation platform motion response test system and a test method. The test system is composed of an underwater platform test model, a steel wire rope, a roller and a supporting seat thereof, a pulley and a supporting rod thereof, a displacement sensor, a trim, a pin shaft type force sensor, a control motor and the like. Simulation and application of environmental loads such as deep sea hoisting, cable laying, ocean currents or internal waves are achieved, a deep sea operation scene does not need to be directly simulated through an underwater platform test, and the design difficulty and test cost of the underwater platform test are effectively reduced; on the basis of load simulation application, free heaving and pitching of an underwater platform test model are achieved while freedom-degree movement in other directions is limited in a steel wire rope and roller combination mode, a displacement sensor and a trim are adopted for real-time measurement of movement response, and the test system is simple in structure, reliable in work, convenient to install and high in reliability. A new method and a new means are provided for deep sea operation motion response forecast research.

Description

technical field [0001] The invention relates to the technical field of test systems, in particular to a test system and a test method for a motion response test of a deep-sea operation platform. Background technique [0002] The deep-sea operation platform hovers underwater, and uses the cable-controlled submersible (ROV), underwater cranes and other equipment to carry out underwater lifting, underwater cable laying, underwater construction maintenance, repairs and other operations in the deep sea. The impact of sea waves and strong concealment can effectively take advantage of manned / unmanned collaborative detection operations. At this time, the operating device-umbilical cable-underwater platform forms a cable-connected multi-body coupling system, and the hovering state of the underwater platform is in a state of micro-restoration force. Large operating disturbances or external environmental loads cause the platform to heave or pitch. , thereby affecting the safety of the...

AI Technical Summary

Problems solved by technology

Traditional submarine hydrodynamic tests mainly include constrained model tests and self-propulsion model tests; the constrained model tests are based on the mature six-free motion equations of submarines as the theoretical basis, and the model hydrodynamics and its coefficients are measured, which cannot directly reflect the motion response of deep-sea operating platforms , and because there is no mature theoretical model for motion response prediction under deep-sea operating conditions, the measurement results of the constraint model test cannot be well applied to the motion response prediction, and the application of the traditional constraint model test is limited; while the maneuverable self-propulsion model test is carried out to simulate the deep sea Operating conditions require the model to be capable of simulating underwater lifting, cable laying, construction and other operating scenarios. The requirements for the test model are high, and the test cost is high. At the same time, there are poor real-time data collection, underwater interference or environmental load control and monitoring, etc. difficulty

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