Ship ice model tank collision experiment device and experiment method

Abstract

The invention discloses a ship ice model tank collision experiment device. The ship ice model tank collision experiment device comprises a water tank, wherein a ship model and an ice body are arrangedin the water tank; the ice body is fixedly connected with a pull rod; the pull rod is fixedly mounted on a connecting rod of a pulley; the pulley is positioned in a guide rail; the guide rail is connected with a connecting plate; the connecting plate is fixedly connected with a towing assembly; the pulley is fixed on the guide rail through a connecting device; a strain gage is mounted at the endpart of the ship model; the strain gage is sequentially connected with a charge amplifier, a multichannel information acquisition instrument and a computer; the motion of the towing assembly drives the pulley and the guide rail to move, thereby driving the pull rod to move; and when the ice body collides the ship model, the strain gage collects collision data. The ship ice model tank collision experiment device can perform structural response validation on mechanical properties, ice body shapes, ice body mass, ice body speed, and collision positions of different ice materials, ship model flotation conditions and collision angles, properly reflects real situations of collision between ships and ice, and is low in cost, easy to operate and low in risk.

Description

technical field [0001] The invention relates to a ship ice pool collision test device and a test method, and belongs to the technical field of ship manufacturing. Background technique [0002] With the rapid development of my country's economic construction, the marine economy has become a new growth point of the national economy. The development of the Arctic and the opening of the Arctic waterway not only provide new guarantees for my country's new strategy, but also shorten the shipping time. Large-scale development, sea ice disasters affecting the safety and operation of offshore structures, and the interaction between sea ice and structures have become increasingly prominent. [0003] Due to the complexity of ship-ice collisions, many details cannot be expressed by theoretical models, and real ship experiments are very expensive, so it is necessary to carry out model test research. Generally speaking, the previous model test research focuses on the ship-ice collision In...

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Problems solved by technology

[0003] Due to the complexity of ship-ice collisions, many details cannot be expressed by theoretical models, and real ship experiments are very expensive, so it is necessary to carry out model test research. Generally speaking, the previous model test research focuses on the ship-ice collision In terms of external dynamics such as roll, pitch, and heave caused after the collision and the load on the hull, the test of the structural response of the hull structure under this load has not yet been carried out. The main reasons are as follows: (1) The impact of the ice material on The temperature requirement is high, and it needs to be carried out in water; (2) the experimental ship model is generally towed by a trailer in the pool, and it is difficult to get rid of the influence of the kinetic energy of the trailer; (3) the ship hits the ice floes, and the movement of the ship model will inevitably affect the attitude of the ice floes , it is difficult to realize the expected collision scheme; (4) When multiple ropes are used to pull the ice body model, the rear part of the ice body will be lifted upward due to the action of fluid

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