CN203094366U - Device for experimenting and testing tail rudder resistance of water spraying combination propeller body - Google Patents
Device for experimenting and testing tail rudder resistance of water spraying combination propeller body Download PDFInfo
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- CN203094366U CN203094366U CN 201220739356 CN201220739356U CN203094366U CN 203094366 U CN203094366 U CN 203094366U CN 201220739356 CN201220739356 CN 201220739356 CN 201220739356 U CN201220739356 U CN 201220739356U CN 203094366 U CN203094366 U CN 203094366U
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Abstract
The utility model discloses a device for experimenting and testing tail rudder resistance of a water spraying combination propeller body, and belongs to the technical field of machinery. A variable frequency motor is connected with a water pump which is connected with an overflow valve through a pipeline, the overflow valve is connected with the tail of a pipeline through the pipeline, a trailer is connected with a support which is connected with a test piece, and the trailer is connected with the variable frequency motor, the water pump and the overflow valve. The support is used for fixedly installing the test piece at an outlet position on the pipeline tail below the trailer. The device for experimenting and testing the tail rudder resistance of the water spraying combination propeller body has the advantages that the flow field simulation of a ship after a propeller works can be carried out, a testing result of the tail rudder resistance of the water spraying combination propeller body can be closer to a real situation compared with a still water environment test, and the testing result is dependable. Compared with a ship self-propulsion test in a lake or coastal waters, the device for experimenting and testing the tail rudder resistance of the water spraying combination propeller body is simple in structure, low in cost and capable of carrying out simulations of different waves according to testing demands in the process of wave resistance increasing testing.
Description
Technical field
The utility model relates to a kind of water spray combination pushing body afterbody rudder shell resistance experiment test device, belongs to field of mechanical technique.
Background technology
Flow-jetting and propelling combination is formed an organic whole by axial-flow pump and combined rudder thereafter, by the blade in the axial-flow pump mechanical energy is changed into water flow dynamic energy when work, is sprayed by spout through stator, thereby promotes motion of ship.Have characteristics such as propulsion coefficient height, maneuvering performance is good, adaptation varying duty ability is strong, the stable working noise is low, be widely used on all kinds of marine propuision systems.
Thereby the afterbody rudder shell of flow-jetting and propelling combination is similar to conduit and has additional thrust, makes up the back except finishing the function of coming about and moveing backward with propelling unit, also entrainments the outer more current of pump case and participate in momentum change and increase propulsion coefficient as jet pump.But the rudder blade that flow-jetting and propelling combination is traditional relatively, increased the exterior rudder shell of rudder blade, if therefore the unreasonable overall resistance that then can increase boats and ships of design when carrying out different ship design, should also need carry out resistance measurement according to the type of boats and ships outside considering the performance that advances and handle.Because it is less that propelling unit is optimized the space, emphasis carries out preferably structure, size and the position of afterbody rudder shell when carrying out resistance measurement.
Common resistance measurement method is mostly carried out in wave basin at present, when carrying out resistance measurement, to advance fabricate block to be installed on the ship model or be arranged separately on the trailer, in the pond, navigate by water to simulate to advance the working environment of fabricate block on boats and ships, experiment to divide to increase resistance in hydrostatic experiment and the wave by trailer and test.Because the restriction of pool size, at present still can not indoor carry out ship model from the aerial survey examination, the afterbody flow field simulation in the time of promptly can't carrying out propelling unit work.
For overcoming the problems referred to above, both at home and abroad in the lake and the offshore sea waters carried out some large-scale boats and ships and tried from aerial survey, its cost significantly increases than the pond build-in test, and outdoor simultaneously wave condition can't can parameter as required be simulated as the pond wave maker.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model provides a kind of water spray combination pushing body afterbody rudder shell resistance experiment test device, be primarily aimed at the afterbody rudder shell drag measurement of boats and ships when carrying out the flow-jetting and propelling combination type selecting, adopt the water pump of adjustable flow to carry out the wake flow simulation of waterjet propulsion, overcome traditional still water resistance test errors.
A kind of water spray combination pushing body afterbody rudder shell resistance experiment test device, variable-frequency motor connects water pump, and water pump is by the plumbing connection by pass valve, and by pass valve passes through pipeline connecting line afterbody,
Trailer connects support, and support connects test specimen, and trailer connects variable-frequency motor, water pump and by pass valve;
Support is fixedly mounted on test specimen in the pipeline afterbody exit of trailer below.
The utility model utilizes water pump to carry out the wake flow simulation of waterjet propulsor ejection, regulates the flow of wake flow by variable-frequency motor and by pass valve, carries out the boats and ships afterbody flow field simulation after the propelling unit work.Because actual combined rudder is operated in after the waterjet propulsor, angle of rake wake flow is bigger to the resistance performance influence of combined rudder, therefore, under the water jet propulsion pump discharge velocity simulated conditions that utilizes the utility model to carry out, the test result of carrying out the flow-jetting and propelling combination afterbody rudder shell resistance under the different speed of a ship or plane is more near truth.
The utility model beneficial effect compared with prior art:
1, can carry out boats and ships afterbody flow field simulation after the propelling unit work, make in the test result of carrying out flow-jetting and propelling combination afterbody rudder shell resistance, more near truth, test result is more credible than the hydrostatic environmental testing.
2, test from boat with respect to the boats and ships in lake, coastal waters, the utility model is simple in structure, and cost is low, and is carrying out can carrying out the simulation of different waves according to the test needs when wave increases the resistance test.
Description of drawings
When considered in conjunction with the accompanying drawings, by the reference following detailed, can more completely understand the utility model better and learn wherein many attendant advantages easily, but accompanying drawing described herein is used to provide further understanding of the present utility model, constitute a part of the present utility model, illustrative examples of the present utility model and explanation thereof are used to explain the utility model, do not constitute improper qualification of the present utility model, as figure wherein:
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is an example structure scheme drawing of the present utility model.
Below in conjunction with drawings and Examples the utility model is further specified.
The specific embodiment
Obviously, the many modifications and variations done based on aim of the present utility model of those skilled in the art belong to protection domain of the present utility model.
Embodiment 1: as shown in Figure 1,
A kind of water spray combination pushing body afterbody rudder shell resistance experiment test device, variable-frequency motor 3 connects water pump 4, and water pump 4 is by plumbing connection by pass valve 5, and by pass valve 5 passes through pipeline 6 connecting line afterbodys 7,
Embodiment 2: as shown in Figure 2,
A kind of water spray combination pushing body afterbody rudder shell resistance experiment test device, variable-frequency motor 3 connects water pump 4, and water pump 4 is by plumbing connection by pass valve 5, and by pass valve 5 passes through pipeline 6 connecting line afterbodys 7,
A kind of water spray combination pushing body afterbody rudder shell resistance experiment test device, its radical function is the laboratory internal resistance test at the flow-jetting and propelling combination of using on all kinds of boats and ships, can carry out the afterbody flow field simulation of waterjet propulsor, form a real afterbody rudder shell test environment, solve the precision influence of traditional hydrostatic experiment.
Utilize water pump to carry out the wake flow simulation of waterjet propulsor ejection, water pump makes up pushing body afterbody rudder shell by pipeline over against water spray, regulate the flow of wake flow by variable-frequency motor and by pass valve, carry out the test of the flow-jetting and propelling combination afterbody rudder shell resistance under the different speed of a ship or plane, provide reference the type selecting of flow-jetting and propelling combination.
Utilize trailer to simulate the motion of boats and ships in water during test in the navigation on the pond, measure the flow velocity of pipeline water outlet (with respect to the flow velocity of trailer with the Pitot rake, reference is a moving axes), when waiting to reach the test desired flow rates, note the operating mode of variable-frequency motor and the position of valve.Repeat above-mentioned steps, substep is found out the motor operating mode and the valve location of different tests ship's speed respective pump flow velocity.Utilize resistance dynamometer to measure the resistance that water spray combination pushing body afterbody rudder shell model is subjected to.
As mentioned above, embodiment of the present utility model is explained, but as long as not breaking away from inventive point of the present utility model and effect in fact can have a lot of distortion, this will be readily apparent to persons skilled in the art.Therefore, such variation also all is included within the protection domain of the present utility model.
Claims (2)
1. a water spray combination pushing body afterbody rudder shell resistance experiment test device is characterized in that variable-frequency motor connects water pump, and water pump is by the plumbing connection by pass valve, and by pass valve passes through pipeline connecting line afterbody,
Trailer connects support, and support connects test specimen, and trailer connects variable-frequency motor, water pump and by pass valve;
Support is fixedly mounted on test specimen in the pipeline afterbody exit of trailer below.
2. a kind of water spray combination pushing body afterbody rudder shell resistance experiment test device according to claim 1 is characterized in that trailer connects clamper, and support moves in clamper and connects,
Trailer connects support, and support and connection variable-frequency motor, water pump and by pass valve, pipeline move in support and connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220739356 CN203094366U (en) | 2012-12-28 | 2012-12-28 | Device for experimenting and testing tail rudder resistance of water spraying combination propeller body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220739356 CN203094366U (en) | 2012-12-28 | 2012-12-28 | Device for experimenting and testing tail rudder resistance of water spraying combination propeller body |
Publications (1)
| Publication Number | Publication Date |
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| CN203094366U true CN203094366U (en) | 2013-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220739356 Expired - Fee Related CN203094366U (en) | 2012-12-28 | 2012-12-28 | Device for experimenting and testing tail rudder resistance of water spraying combination propeller body |
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| CN (1) | CN203094366U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712772A (en) * | 2013-12-24 | 2014-04-09 | 中国船舶重工集团公司第七二六研究所 | Ship wake flow realistic simulation method allowing bubble density to be adjusted |
| CN104332091A (en) * | 2014-11-20 | 2015-02-04 | 江苏科技大学 | Simple experiment device of pump-jet propeller |
| CN106289720A (en) * | 2016-08-17 | 2017-01-04 | 上海斯达瑞船舶海洋工程服务有限公司 | The ship model experiment method of multiple-screw vessel |
| CN106813891A (en) * | 2016-11-04 | 2017-06-09 | 中国航天空气动力技术研究院 | Air propeller electric propulsion system dynamic response characteristic test method |
| CN106872156A (en) * | 2017-02-21 | 2017-06-20 | 武汉理工大学 | The experimental rig of the variable depth of water under a kind of achievable various hydraulic propeller moored conditions |
| CN107021184A (en) * | 2017-03-22 | 2017-08-08 | 哈尔滨工程大学 | A kind of real waters ice-breaking test method of ship |
-
2012
- 2012-12-28 CN CN 201220739356 patent/CN203094366U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712772A (en) * | 2013-12-24 | 2014-04-09 | 中国船舶重工集团公司第七二六研究所 | Ship wake flow realistic simulation method allowing bubble density to be adjusted |
| CN103712772B (en) * | 2013-12-24 | 2016-04-06 | 中国船舶重工集团公司第七二六研究所 | The ship wake flow realistic simulation method that bubble density is adjustable |
| CN104332091A (en) * | 2014-11-20 | 2015-02-04 | 江苏科技大学 | Simple experiment device of pump-jet propeller |
| CN104332091B (en) * | 2014-11-20 | 2016-06-08 | 江苏科技大学 | The simple experimental device of pump hydraulic propeller |
| CN106289720A (en) * | 2016-08-17 | 2017-01-04 | 上海斯达瑞船舶海洋工程服务有限公司 | The ship model experiment method of multiple-screw vessel |
| CN106813891A (en) * | 2016-11-04 | 2017-06-09 | 中国航天空气动力技术研究院 | Air propeller electric propulsion system dynamic response characteristic test method |
| CN106813891B (en) * | 2016-11-04 | 2019-04-09 | 中国航天空气动力技术研究院 | Air propeller electric propulsion system dynamic response characteristic test method |
| CN106872156A (en) * | 2017-02-21 | 2017-06-20 | 武汉理工大学 | The experimental rig of the variable depth of water under a kind of achievable various hydraulic propeller moored conditions |
| CN106872156B (en) * | 2017-02-21 | 2020-01-14 | 武汉理工大学 | Test device capable of realizing variable water depth under mooring state of multiple water-jet propellers |
| CN107021184A (en) * | 2017-03-22 | 2017-08-08 | 哈尔滨工程大学 | A kind of real waters ice-breaking test method of ship |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20211228 |