Cable simulation device and method for ship mooring physical model test

Abstract

The invention discloses a cable simulation device and a method thereof in a ship mooring physical model test. The device includes a box body, which is equipped with a track, a spring system, a fixed plate and a tension plate arranged horizontally up and down and parallel to each other, and the tension plate can slide up and down along the track; the spring system is composed of multiple springs of different lengths and connecting rods. According to the force and deformation characteristics of the cable to be simulated, calculate and determine the length of each spring and pull rod, form a spring system and keep connected with the tension plate, apply tension in stages, and measure the elongation of the corresponding tension plate, and simulate the length of the cable through the spring system of different lengths Non-linear tension-elongation relationship, draw the tension-elongation relationship curve, compare it with the theoretical curve of the simulated cable stress and deformation, and check the error of the test result. The invention solves the technical problem of simulating the nonlinear load-deformation relationship of the cable in the ship mooring physical model test, and has good operability, high accuracy and efficiency, and good test effect.

Description

technical field [0001] The invention belongs to the technical field of water transportation engineering, and relates to a ship mooring physical model test device and method suitable for coast, offshore and inland waters, in particular to a cable simulation device and method for ship mooring physical model test. Background technique [0002] With the development of economic globalization, shipping has occupied a supporting position in the long-distance transportation market with its unique advantages of economy, efficiency, safety and environmental protection. The booming development of the shipping industry has brought unprecedented opportunities for large-scale ships and deep-water terminals. It also poses new challenges to the requirements of port construction. Along with the rapid development of large berths, it often occurs that the mooring cables of large ships break under the effects of wind, waves, tides, etc., causing serious accidents. The force on the mooring ship...

AI Technical Summary

Problems solved by technology

[0003] In the currently commonly used ship mooring physical model test, it is impossible to simulate the nonlinear relationship between the tension and deformation of the cable. The simulation of the elastic modulus of the cable is mainly considered. Generally, materials with similar deformation are found, such as reduced steel wire ropes and nylon wires. In the experiment, the tension and deformation of the cable should be considered separately, and multiple experiments are required.

The operability and accuracy are poor, the test efficiency is low, and the test effect is poor

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