CN101907510B - Air cavity craft dragging test method - Google Patents
Air cavity craft dragging test method Download PDFInfo
- Publication number
- CN101907510B CN101907510B CN2010102115228A CN201010211522A CN101907510B CN 101907510 B CN101907510 B CN 101907510B CN 2010102115228 A CN2010102115228 A CN 2010102115228A CN 201010211522 A CN201010211522 A CN 201010211522A CN 101907510 B CN101907510 B CN 101907510B
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- trailer
- craft
- air cavity
- air
- pressure
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Abstract
The invention relates to an air cavity craft dragging test method. An air supplying device, a pressure stabilizing device and a ventilating pipe are orderly connected and arranged on a trailer. The ventilating pipe is connected with a vent. The craft model is fixed on a trailer testing apparatus. When the air supplying device works, and the interior of pressure in the pressure stabilizing device reaches to the a required pressure, the air supplying switch of the air supplying device is closed, the trailer moves at the required speed, and the air is led into the air cavity at the craft bottom through the ventilating pipe. The trailer finishes the whole process of dragging the water tank, and starts to move back, the pressure relief switch of the pressure stabilizing device is opened, the air is supplemented, and the trailer works again. The invention provides a feasible method for testing the air cavity craft models, is suitable for testing the drag and wave-resistance property of the air cavity craft models, can be applied to real air cavity craft after being slightly improved, and provides feasible technical guarantee and solid engineering applying foundation for the design, test and use of the same similar air cavity craft.
Description
Technical field
The present invention relates to ship hydrodynamics test field, relate in particular to and be used for method that the bubble ship model is tested.
Background technology
In the ship model towing trial of routine, by the resistance of foil gauge test ship model under each speed of a ship or plane, generate resistance curve, for the design of real ship provides important test basis.Bubble ship model test method is different from the test method of conventional ship model, and it needs a cover bubble generator, comes to provide for the air-chamber of Jet boat the bubble of steady pressure and flow.Towing does not still have ripe test method for Jet boat at present, and conventional ship model experiment method can not satisfy the special requirement of bubble ship model.
Summary of the invention
The object of the present invention is to provide a kind of air cavity craft dragging test method, with the requirement of the resistance that satisfies the bubble ship model and seakeeping capacity test.
Technical scheme of the present invention is as follows:
A kind of air cavity craft dragging test method, step is as follows:
(1) needs and the ship model parameter according to test, select feeder, stable-pressure device and the snorkel of coupling, and on ship model, carry out blow vent, feeder, stable-pressure device and snorkel be linked in sequence be positioned on the trailer, snorkel is connected blow vent, ship model is fixed on the trailer testing tool;
(2) feeder work when stable-pressure device inside reaches the pressure that needs, is turned off the air supply valve of feeder, and trailer advances with the speed of a motor vehicle of needs, and gas leads in the hull bottom air cavity through snorkel;
(3) the trailer towing basin that travelled is omnidistance and begin to retreat, and opens the compression relief cock of stable-pressure device, and portion gas is overflowed, and keeps the stable of hull bottom air cavity internal gas pressure;
(4) when the voltage-stabilizing system internal gas pressure obviously reduces, open the air supply valve of feeder, replenish air feed, trailer is task again.
Its further technical scheme is: when trailer is worked in the described step (four), if the trailer speed of a motor vehicle is fast, the towing time is short, gas loss does not need to replenish air feed at least.
Useful technique effect of the present invention is:
The invention provides the feasible method that a cover can be used for the Jet boat model test, be applicable to the test of Jet boat model resistance and seakeeping capacity, make improvements slightly and promptly can be applicable to the real ship of Jet boat, for design, test and the use of Jet boat of the same type provides practicable technical guarantee and solid through engineering approaches application foundation.
Description of drawings
Fig. 1 is the process flow diagram of the inventive method.
Fig. 2 is the connection layout of hardware required for the present invention.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described further.
As shown in Figure 1, the idiographic flow of the inventive method is:
Step S01, need and the ship model parameter according to test, select feeder, stable-pressure device and the snorkel of coupling, and on ship model, carry out blow vent, feeder, stable-pressure device and snorkel be linked in sequence be positioned on the trailer, snorkel is connected blow vent, ship model is fixed on the trailer testing tool.The connected mode of above-mentioned hardware is seen Fig. 2.As shown in Figure 2, required hardware comprises feeder, stable-pressure device, snorkel, trailer and ship model.
Step S02, before on-test, feeder work, observe the tensimeter on the voltage-stabilizing system, when stable-pressure device inside reaches the pressure that needs, turn off the air supply valve of feeder, trailer advances with the speed of a motor vehicle of needs, and gas leads in the hull bottom air cavity through snorkel.
Step S03, the trailer towing basin whole process of having travelled, and begin to retreat, open the compression relief cock of stable-pressure device, portion gas is overflowed, keep the stable of hull bottom air cavity internal gas pressure;
Step S04 when the voltage-stabilizing system internal gas pressure obviously reduces, opens the air supply valve of feeder, replenishes air feed, and trailer is task again.
As optional, when trailer was worked, the trailer speed of a motor vehicle was fast, the towing time is short, gas loss is few among the step S04 in addition, did not then need to replenish air feed.
By above-mentioned Jet boat test method, can finish the performance test of any Jet boat model in hydrostatic and wave.Air feed power can be effectively saved in the existence of stable-pressure device.Above-mentioned research technique is the direct way that obtains the Jet boat performance, and also therefore this method provides practicable technical guarantee and solid through engineering approaches application foundation for design, test and the use of Jet boat of the same type from now on.
Above-described only is preferred implementation of the present invention, the invention is not restricted to above embodiment.Be appreciated that other improvement and variation that those skilled in the art directly derive or associate under the prerequisite that does not break away from spirit of the present invention and design, all should think to be included within protection scope of the present invention.
Claims (2)
1. air cavity craft dragging test method is characterized in that step is as follows:
(1) needs and the ship model parameter according to test, select feeder, stable-pressure device and the snorkel of coupling, and on ship model, carry out blow vent, feeder, stable-pressure device and snorkel be linked in sequence be positioned on the trailer, snorkel is connected blow vent, ship model is fixed on the trailer testing tool;
(2) feeder work when stable-pressure device inside reaches the pressure that needs, is turned off the air supply valve of feeder, and trailer advances with the speed of a motor vehicle of needs, and gas leads in the hull bottom air cavity through snorkel;
(3) the trailer towing basin that travelled is omnidistance and begin to retreat, and opens the compression relief cock of stable-pressure device, and portion gas is overflowed, and keeps the stable of hull bottom air cavity internal gas pressure;
(4) when the stable-pressure device internal gas pressure obviously reduces, open the air supply valve of feeder, replenish air feed, trailer is task again.
2. according to the described air cavity craft dragging test method of claim 1, it is characterized in that: when trailer is worked in the described step (four), if the trailer speed of a motor vehicle is fast, the towing time is short, gas loss does not need to replenish air feed at least.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN2010102115228A CN101907510B (en) | 2010-06-29 | 2010-06-29 | Air cavity craft dragging test method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN2010102115228A CN101907510B (en) | 2010-06-29 | 2010-06-29 | Air cavity craft dragging test method |
Publications (2)
Publication Number | Publication Date |
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CN101907510A CN101907510A (en) | 2010-12-08 |
CN101907510B true CN101907510B (en) | 2011-10-26 |
Family
ID=43263033
Family Applications (1)
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CN2010102115228A Expired - Fee Related CN101907510B (en) | 2010-06-29 | 2010-06-29 | Air cavity craft dragging test method |
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CN (1) | CN101907510B (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103076153B (en) * | 2013-01-04 | 2014-12-17 | 哈尔滨工程大学 | Resistance testing device for cable-towed ship model |
CN103528792B (en) * | 2013-10-27 | 2015-09-23 | 广西科技大学 | Underwater low-voltage discharge bubble generation device |
CN104776975B (en) * | 2015-04-09 | 2017-09-15 | 中国人民解放军91439部队 | A kind of Ship Bubbles Wake laboratory simulation device |
KR102032490B1 (en) * | 2018-04-25 | 2019-10-15 | 한국해양과학기술원 | System for measuring resistance of model ship using active vibration control technology |
KR102372789B1 (en) * | 2020-08-12 | 2022-03-10 | 한국해양과학기술원 | Resistance Dynamometer with Air Bearings for Ship Model Test Its Measuring Method |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2238036A1 (en) * | 1995-12-04 | 1997-06-12 | Hiroharu Kato | Method for reducing frictional resistance of hull, frictional resistance reducing ship using such method, and method for analyzing ejected air-bubbles from ship |
CN200982914Y (en) * | 2006-09-08 | 2007-11-28 | 交通部天津水运工程科学研究所 | A device for measuring motion of moored ship model |
CN101201241A (en) * | 2006-12-15 | 2008-06-18 | 中国神华能源股份有限公司 | Method and system for measuring movement of ship model |
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2010
- 2010-06-29 CN CN2010102115228A patent/CN101907510B/en not_active Expired - Fee Related
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Granted publication date: 20111026 Termination date: 20190629 |