An intelligent measurement and control device for ship swaying experiments

Abstract

The invention provides an intelligent measuring and controlling device for ship oscillation experiment, comprising a rigid support formed by an upper truss structure and four pile legs disposed at thelower end of the upper truss structure. The center of the upper truss structure is provided with a laser positioning device and a stepping speed regulation motor. The output end of the stepping speedregulation motor is connected to a cylinder-shaped rotating roller. Each pile leg is provided with a connecting ring, and each connecting ring is provided with a cylinder-shaped slipping ring. Each cylinder-shaped slipping ring is fixedly provided with a rotating wheel having a locking mechanism. Four rotating wheels are disposed on the same plane, and are respectively connected to a ship model through a steel rope. Four driving belt mechanism are respectively disposed between the cylinder-shaped rotating roller and the four cylinder-shaped sliding rings, and are disposed from top to bottom in a staggering manner. The invention is advantageous in that producing is facilitated; application is wide and operation is convenient; the measuring experiment result is more accurate, and the testing performance is better; the problem of measurement data errors due to limitation in traditional experiment methods and experimental facilities of a ship model towing tank can be resolved.

Description

technical field [0001] The invention relates to an intelligent measurement and control device for ship swaying experiments, which is a new type of ship hydrodynamic performance measurement device which is improved from the existing ship model towing pool measurement equipment, with simpler operation, more accurate results and wider application range Background technique [0002] The ship model towing tank is a common equipment for hydrodynamic experiments. It can carry out seakeeping tests of ship models under different wave levels and different wave angles, and analyze and study the seakeeping performance of ships and the effectiveness of various anti-rolling devices. and provide a basis for designing ships with better performance. [0003] At present, seakeeping tests of ships in rectangular towing tanks are generally limited to head wave experiments, along wave experiments, and cross wave experiments. The experimental method is generally to place the ship model in the mi...

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Problems solved by technology

Affected by measuring equipment, tank scale and human error, it will bring a lot of uncertainty to the test, and even wrong results, such as: ①The position of the ship model is fixed in the tank, and the tightness of the steel wire ropes around it cannot be guaranteed to be completely consistent. The uneven force will seriously affect the accuracy of the experimental results; ②When the ship model is fixed by the surrounding steel wire ropes, the inclination angle cannot be guaranteed to be consistent, and it is difficult to determine the floating state requirements of the ship model; ③Based on the current traditional experimental method, it is difficult The seakeeping experiment of the ship model under the condition of oblique waves is carried out in the pool; ④ Even in the rectangular towing pool, the seakeeping experiment of the ship model under the condition of oblique waves can be carried out. The position of the surrounding wire ropes indirectly adjusts the angle of the ship model, but at this time it is impossible to determine whether the rotation angle of the ship model meets the requirements of the experiment, and the reliability of the experiment and the accuracy of the experimental results are seriously affected

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