Multi-directional stage-loading device of horizontal stiffness test of mooring system

Abstract

The invention relates to a multi-directional stage-loading device of a horizontal stiffness test of a mooring system. The multi-directional stage-loading device comprises a fixing support frame and a model locator, a vertical adjustment mechanism, a longitudinal adjustment mechanism and a horizontal adjustment mechanism are arranged on the fixing support frame, the vertical adjustment mechanism is mounted on the fixing support frame, the longitudinal adjustment mechanism is mounted on the vertical adjustment mechanism, the horizontal adjustment mechanism is mounted on the longitudinal adjustment mechanism, and the vertical, longitudinal and horizontal adjustment mechanisms are mounted by layer in a sleeved manner through cooperation of sliding rods and sliders; the model locator is connected to one end of the horizontal adjustment mechanism to have a test model clamped, and stop nuts are correspondingly arranged on the adjustment mechanisms of all directions to have displacement adjusted accurately. By the ingenious application of the layering frame structure, three degrees of freedom offset adjustment of longitudinal, horizontal and vertical swinging of the loading device is achieved, the test model can be ensured to move independently along the specific horizontal degree of freedom during offset applying while other degrees of freedom are motionless, error caused by human operation is avoided, precision in test is guaranteed, and efficiency in model test is improved.

Description

technical field [0001] The invention relates to the technical field of ocean engineering pool model tests, in particular to a multi-directional graded loading device for the horizontal stiffness test of a mooring system. Background technique [0002] With the decrease of land oil and gas resources, the development of offshore oil and gas resources has become an important support and strategic measure for the sustainable development of oil and gas resources. The development of offshore oil and gas resources has become an important frontier of science and technology. As one of the basic facilities for the development of offshore oil and gas resources, the performance of the floating structure system plays a decisive role in the safe development of offshore oil and gas resources. The pool model test is an effective means to predict and study the performance of marine structures, especially for new floating structures. For the study of hydrodynamic performance of structural syst...

AI Technical Summary

Problems solved by technology

[0013]The technical problem to be solved by the present invention is that the existing model cannot move strictly in a specific direction during the process of applying load, and other degrees of freedom displacements are likely to exist during the offset process, resulting in In order to solve the defect of inaccurate measurement results, a multi-directional loading device for the horizontal stiffness test of the mooring system is proposed to realize the accurate measurement of the horizontal stiffness of the test model mooring system

Images