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Variable-diameter floating ice channel

A channel and ice floe technology, applied in measurement devices, instruments, fluid dynamics tests, etc., can solve problems such as the difficulty of simulating ice density, the influence of ship model ice breaking rotation load test results, and the error of test simulation environment. , to achieve the effect of improving the efficiency of the pool test, changing the density of floating ice, and being convenient to operate.

Active Publication Date: 2020-10-30
CHINA SHIP SCIENTIFIC RESEARCH CENTER (THE 702 INSTITUTE OF CHINA SHIPBUILDING INDUSTRY CORPORATION)
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the large water area of ​​the spiral arm pool, if simulated ice blocks are laid on the water surface within a certain range of water area, if it is not restricted by external blocking objects, the density of simulated ice blocks in the simulated ice area is difficult to reach the required value for the test. This will cause a large error in the test simulation environment, which will have a serious impact on the test results of the ship model ice-breaking slewing load

Method used

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  • Variable-diameter floating ice channel
  • Variable-diameter floating ice channel
  • Variable-diameter floating ice channel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] The outer channel 7 is composed of an odd number of small channels 71 , and a small channel 71 located in the middle is installed on the mobile trolley 9 , and the adjacent small channels 71 are connected by a diameter reducing mechanism 1 72 in rotation.

Embodiment 2

[0046] The outer channel 7 is composed of an even number of small channels 71, and the two small channels 71 located in the middle are respectively connected to the mobile trolley 9 through the diameter reducing mechanism 28; the even number of small channels 71 are symmetrical along the outer channel 7 The wires are divided into two groups, and the adjacent small grooves 71 in each group are connected by rotation through a diameter reducing mechanism one 72 .

[0047] Such as figure 2 with Figure 4 As shown, the structure of the single set of reducing mechanism 2 8 is as follows: it includes electric cylinder 1 86, the tail end of electric cylinder 1 86 is rotated and installed on the mobile trolley 9 through the rotating shaft 1 87, and the output end of electric cylinder 1 86 is rotated and installed in the small channel The outer wall of 71; the outer wall of the small channel 71 extends outwards with a lug 84, and the lug 84 is rotationally connected with the output en...

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Abstract

The variable-diameter floating ice channel comprises a water pool, a central island is arranged in the center of the water pool, a support is fixedly installed on the side wall of the central island,an arc-shaped inner channel is installed at the end of the support, and the inner channel and the central island are concentrically arranged; a trolley track is arranged on the bottom surface of the water pool, and a moving trolley is movably arranged on the trolley track and moves along the radial direction of the central island under the guidance of the trolley track; an arc-shaped structure outer channel is installed on the moving trolley, the outer channel and the inner channel are concentrically arranged, the outer channel is composed of a plurality of small channels arranged in the circumferential direction, the middle small channel is connected with the moving trolley, and the adjacent small channels on the two sides are rotationally connected through a first reducing mechanism, a floating ice channel is formed between the inner channel and the outer channel, the distance between the outer channel and the inner channel is changed under the driving of the moving trolley, and thecurvature radius of the outer channel is changed under the driving of the first variable-diameter mechanism, so that the radial size of the floating ice channel is adjusted, pool test functions are diversified, pool test efficiency is greatly improved, and cost is saved.

Description

technical field [0001] The invention relates to the technical field of ship model test equipment, in particular to a variable-diameter floating ice channel. Background technique [0002] The swivel arm pool is mainly used for the test and research of the maneuverability of the surface ship model rotation. The swing arm pool is usually a circular pool structure. A central island with a fixed rotary shaft is arranged in the center of the pool body. A circular track is laid on the periphery of the pool body. A rotating arm is set up between the rotary shaft and the circular track. Install a trailer that can change the radius along the radial direction, and the ship model is connected with the trailer through a force-measuring balance and a support rod. During the test, the rotating arm was moved at a certain rotation speed, and the ship model was forced to rotate with a certain radius of rotation by the trailer, and a series of hydrodynamic test parameters of the ship model we...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M10/00E02B1/02
CPCG01M10/00E02B1/02
Inventor 李明政赵桥生
Owner CHINA SHIP SCIENTIFIC RESEARCH CENTER (THE 702 INSTITUTE OF CHINA SHIPBUILDING INDUSTRY CORPORATION)
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