CN106197945A - A kind of straight hair sound assay device of vast scale Propeller Model - Google Patents
A kind of straight hair sound assay device of vast scale Propeller Model Download PDFInfo
- Publication number
- CN106197945A CN106197945A CN201610634823.9A CN201610634823A CN106197945A CN 106197945 A CN106197945 A CN 106197945A CN 201610634823 A CN201610634823 A CN 201610634823A CN 106197945 A CN106197945 A CN 106197945A
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- motor
- assay device
- propeller model
- watertight housings
- main shaft
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M10/00—Hydrodynamic testing; Arrangements in or on ship-testing tanks or water tunnels
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- General Physics & Mathematics (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The present invention relates to the straight hair sound assay device of a kind of vast scale Propeller Model, belong to submarine navigation device propulsion noise and control technical field.This device includes two-way tensioning haulage gear, water surface unpowered ship, data acquisition equipment, power cable, manipulation and data handling equipment, hydrophone array, Propeller Model, main shaft system, non-watertight housings, watertight housings, sensor, support member, rigidity connector and motor；The maximum thrust of Propeller Model as required, size, weight, power and rotating speed, determine water surface unpowered ship parameter, main shaft system parameter, motor parameter and two-way tensioning haulage gear parameter；When Propeller Model not being installed, the noise of test system；Cut-off clutch, the noise under test motor zero load；According to test result, described assay device is rectified and improved, until meeting test demand.The test result of assay device of the present invention is reproducible, test period is short and low cost.
Description
Technical field
The present invention relates to the straight sounding acoustic assay device of the vast scale Propeller Model of a kind of submarine navigation device, belong to water
Lower aircraft propulsion noise controls technical field.
Background technology
Underwater propulsion noise is one of noise control major concern of submarine navigation device.It includes angle of rake
Straight hair sound and evoke the acoustic radiation of hull.The most angle of rake straight hair sound is conclusive, produces because propeller evokes hull
Raw acoustic radiation is closely related with the unsteady flo w power that propeller produces, this unsteady flo w power can also from angle of rake straight hair sound root
Obtain according to the relation indirect of dynamic force with acoustic radiation.Two kinds of technological approaches are typically taked in the test of propeller straight hair sound.One is to use
Ship trial is carried out, and two is to carry out with scale model tests.It is difficult in view of mechanical noise in ship trial and hydrodynamic noise
Efficiently separating, and wish i.e. to obtain the assessment of propulsion noise characteristic in the design phase, the most general model test is carried out
The assessment of underwater propulsion noise.Existing technology is usually and carries out small-scale model test in circulating water chennel (such as: accelerate rotation
Rotating propeller noise testing water tunnel test research war industry's journal, 12 phases in 2010).When circulating water chennel is tested, because
Circulating water chennel middle section is long-pending less, and the most angle of rake ratio can not be too big, secondly because the difficulty of low frequency measurement causes
It is higher that effective noise measures frequency range.
Summary of the invention
For defect present in prior art, it is an object of the invention to provide the straight of a kind of vast scale Propeller Model
Vocalization test device, this assay device can be tested the Propeller Model of different proportion, can carry out on large pool and lake
Test, directly records far-field radiation noise；The test result of this assay device is reproducible, test period is short and low cost.
It is an object of the invention to be achieved through the following technical solutions.
The straight hair sound assay device of a kind of vast scale Propeller Model, described assay device includes that two-way tensioning towing sets
Standby, water surface unpowered ship, data acquisition equipment, power cable, manipulation and data handling equipment, hydrophone array, Propeller Model,
Main shaft system, non-watertight housings, watertight housings, sensor, support member, rigidity connector and motor；
Described hydrophone array is to be uniformly distributed the semi-cylindrical formed on vertical level direction, in level by hydrophone
It is projected as semicircle on face；
Sensor and motor are arranged on the inside of watertight housings, and watertight housings is fixing with non-watertight housings to be connected；Push away
Enter device model and be connected with motor in the outside of non-watertight housings and by main shaft system, main shaft system by with watertight housings outer surface
The fixing support member connected is supported；Hydrophone array cloth is placed on after Propeller Model and by with water surface unpowered ship even
Connect and be fixed, for gathering the far-field radiation noise of Propeller Model；One end of rigidity connector through non-watertight housings with
Watertight housings is fixing to be connected, and the other end is hinged with the bottom surface of water surface unpowered ship, it is ensured that non-watertight housings is transported in the horizontal direction
Dynamic；Before and after water surface unpowered ship, two ends are connected with two-way tensioning haulage gear respectively, and by manipulation and data handling equipment control
Make the power that water surface unpowered ship is applied by two-way tensioning haulage gear；Power cable one end is connected with motor, through rigidity even
Integrate with the hawser in the two-way tensioning haulage gear of water surface unpowered ship front end after fitting, the other end and outside electricity
Source connects, and is controlled to flow to electric current and the voltage of motor by manipulation and data handling equipment；Data acquisition equipment is arranged on
Inside water surface unpowered ship, gather hydrophone and the signal of sensor generation, and the signal gathered is passed through wireless transmit
Mode passes to manipulation and data handling equipment；Manipulation and data handling equipment receive described signal laggard row data analysis and
Process, obtain the far-field radiation noise characteristic of Propeller Model straight hair sound.
Described main shaft system includes main shaft, thrust bearing and clutch；Main shaft passes thrust bearing, one end of main shaft and propelling
Device model is fixing to be connected, and the other end is fixing with clutch to be connected；Main shaft system and the connection of motor or disconnected is realized by clutch
Open；Support member be positioned at non-watertight enclosure interior and be connected the main shaft outside watertight housings is fixing；In the symmetry of hydrophone array
Heart point is on the extended line of main shaft.
Preferably, the internally installed motor damping mechanism of watertight housings, motor damping mechanism contacts with motor, to motor
Vibration carry out efficient vibration damping, make the underwater radiation noise that motor causes far below propulsion noise.
Described non-watertight housings is made up of the damped coefficient composite not less than 1%.
The first natural frequency of described watertight housings is much larger than the axle frequency of motor and the leaf frequency of Propeller Model.
Preferably, described watertight housings uses the thickness steel not less than 10mm to make；Resistance is laid in the inside of watertight housings
Damping material, suppresses its dither.
The power density of described motor is not less than 2kW/kg.
Preferably, the cross section of described rigidity connector is streamlined, controls flow noise；Outer surface lays damping material
Material, suppresses it to vibrate.
The displacement of described water surface unpowered ship is not less than 50 tons.
The size of described Propeller Model is 1:4～20 with the dimension scale of real ship's propeller.
Beneficial effect:
(1), in assay device of the present invention, take to use the non-watertight housings of composite of high-damping coefficient, thickness
Watertight housings not less than 10mm, motor damping mechanism, cross section are fairshaped rigidity connector and in associated component
The measures such as coated with viscoelastic layer, suppress vibration and noise, the most described test that in described assay device, parts self produce
Device can obtain the purest propeller straight hair sound data.
(2) Propeller Model of the present invention, can be carried out according to the different ratios that reduces according to real ship's propeller
Design, carries out the test of a series of scale model；This assay device is applicable to test on large pool and lake water, by
In test waters, yardstick is relatively big, there is the region that direct sound wave is dominant, it is possible to obtain from low frequency around Propeller Model
The far-field radiation noise of the propeller straight hair sound in high frequency full frequency band.
(3) assay device of the present invention, Propeller Model of dismantling, can enter the submerged structure that non-watertight housings forms
Row stream swashs the test of noise；The test result of assay device of the present invention is reproducible, test period is short and low cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the straight hair sound assay device of the underwater propeller large-scale model described in embodiment.
Wherein, 1-hydrophone array, 2-Propeller Model, the non-watertight housings of 3-, 4-watertight housings, 5-motor, 6-power
Cable, 7-rigidity connector, 8-main shaft, 9-thrust bearing, 10-clutch, 11-support member, 12-sensor, 13-motor vibration damping
Mechanism.
Detailed description of the invention
The present invention will be further described with detailed description of the invention below in conjunction with the accompanying drawings.
Embodiment 1
As it is shown in figure 1, the straight hair sound assay device of a kind of vast scale Propeller Model, described assay device includes two-way
Tight haulage gear, water surface unpowered ship, data acquisition equipment, power cable 6, manipulation and data handling equipment, hydrophone array 1,
Propeller Model 2, main shaft system, non-watertight housings 3, watertight housings 4, sensor 12, support member 11, rigidity connector 7, motor
5 and motor damping mechanism 13；
Described hydrophone array 1 is to be uniformly distributed the semi-cylindrical formed on vertical level direction, at water by hydrophone
It is projected as semicircle in plane；The size of described Propeller Model 2 is 1:10 with the dimension scale of real ship's propeller；
Described non-watertight housings 3 is made up of the composite of high-damping coefficient；Described watertight housings 4 is
The steel of 15mm are made, its internal coated with viscoelastic layer, and the first natural frequency of watertight housings 4 is much larger than motor 5 axle
Frequency and Propeller Model 2 leaf frequency；Described main shaft system is mainly made up of main shaft 8, thrust bearing 9 and clutch 10；Described electronic
The power density of machine 5 is 2kW/kg；The displacement of described water surface unpowered ship is 50 tons, the knot under water of non-watertight housings 3 composition
The displacement of structure is 20 tons；The cross section of described rigidity connector 7 is streamlined, outer surface coated with viscoelastic layer；
Sensor 12, motor 5 and motor damping mechanism 13 are arranged on the inside of watertight housings 4, motor damping mechanism
13 contact with motor 5, and watertight housings 4 is fixing with non-watertight housings 3 to be connected；Main shaft 8 is through thrust bearing 9, one end of main shaft 8
Fixing with the Propeller Model 2 outside non-watertight housings 3 and be connected, the other end is fixing with clutch 10 to be connected, real by clutch 10
Show main shaft and the connection of motor 5 or disconnection；One end of support member 11 is with to be positioned at non-watertight housings 3 internal and in watertight housings 4
Outside main shaft 8 is fixing to be connected, and the other end is fixing with watertight housings 4 outer surface to be connected；Hydrophone array 1 cloth is placed on Propeller Model
It is fixed after 2 and by being connected with water surface unpowered ship, and the symmetrical centre point of hydrophone array 1 is in the prolongation of main shaft 8
On line, for gathering the far-field radiation noise of Propeller Model 2；One end of rigidity connector 7 passes non-watertight housings 3 and watertight
Housing 4 is fixing to be connected, and the other end is hinged with the bottom surface of water surface unpowered ship, it is ensured that non-watertight housings 3 is moved in the horizontal direction；
Before and after water surface unpowered ship, two ends are connected with two-way tensioning haulage gear respectively, and are controlled double by manipulation and data handling equipment
Power water surface unpowered ship applied to tensioning haulage gear；Power cable 6 one end is connected with motor 5, connects through rigidity
Integrate with the hawser in the two-way tensioning haulage gear of water surface unpowered ship front end after part 7, the other end and outside electricity
Source connects, and is controlled to flow to electric current and the voltage of motor 5 by manipulation and data handling equipment；Data acquisition equipment is arranged on
Inside water surface unpowered ship, gather hydrophone and the signal of sensor generation, and the signal gathered is passed through wireless transmit
Mode passes to manipulation and data handling equipment；Manipulation and data handling equipment receive described signal laggard row data analysis and
Process.
The test procedure of assay device described in the present embodiment is as follows:
(1) maximum thrust of Propeller Model 2, size, weight, power and rotating speed the most as required, determines water
Face unpowered ship parameter, main shaft system parameter, motor 5 parameter and two-way tensioning haulage gear parameter；
(2) according to parameter and the thickness of watertight housings of motor 5 parameter determination motor damping mechanism 13；
(3) non-watertight housings 3, the stern line style of non-watertight housings 3 and real ship stern line are manufactured and designed according to experimental subject
Type is similar；
(4) assemble described assay device, then this assay device is debugged, test after debugging；
(6) then dismantling Propeller Model 2, system is pulled by setting speed, measures system noise now；
(5) cut-off clutch 10 again, system at rest, the underwater radiation noise under test motor 5 is unloaded；
(6) whether the background noise of split-phase motor 5 noise and system motion meets requirement；If be unsatisfactory for, then carry out
Rectification, repeat the above steps, until meeting test demand；According to analyzing the data tested, obtain Propeller Model 2 straight hair sound
Far-field radiation noise characteristic.
Change the size of Propeller Model, repeat above-mentioned test procedure, the Propeller Model of different proportion can be recorded
Far-field radiation noise characteristic.
In sum, these are only presently preferred embodiments of the present invention, be not intended to limit protection scope of the present invention.
All within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, should be included in the present invention's
Within protection domain.
Claims (10)
1. the straight hair sound assay device of a vast scale Propeller Model, it is characterised in that: described assay device includes two-way
Tight haulage gear, water surface unpowered ship, data acquisition equipment, power cable (6), manipulation and data handling equipment, hydrophone array
(1), Propeller Model (2), main shaft system, non-watertight housings (3), watertight housings (4), sensor (12), support member (11), rigidity
Connector (7) and motor (5)；
Described hydrophone array (1) is to be uniformly distributed the semi-cylindrical formed on vertical level direction, in level by hydrophone
It is projected as semicircle on face；
Sensor (12) and motor (5) are arranged on the inside of watertight housings (4), watertight housings (4) and non-watertight housings (3)
Fixing connection；Propeller Model (2) is connected with motor (5) in the outside of non-watertight housings (3) and by main shaft system, main shaft system
It is supported by fixing the support member (11) being connected with watertight housings (4) outer surface；Hydrophone array (1) cloth is placed on propeller mould
It is fixed after type (2) and by being connected with water surface unpowered ship；One end of rigidity connector (7) passes non-watertight housings
(3) fixing with watertight housings (4) is connected, the bottom surface hinge of the other end and water surface unpowered ship；Before and after water surface unpowered ship two
End is connected with two-way tensioning haulage gear respectively, and is controlled two-way tensioning haulage gear to the water surface by manipulation and data handling equipment
The power that unpowered ship applies；Power cable (6) one end is connected with motor (5), through rigidity connector (7) afterwards with the water surface without dynamic
Hawser in the two-way tensioning haulage gear of power ship front end integrates, and the other end is connected with outside power supply, and by manipulating
And data handling equipment controls to flow to electric current and the voltage of motor (5)；Data acquisition equipment is arranged on water surface unpowered ship
Inside, the signal that collection hydrophone and sensor (12) produce, and the signal of collection is transmitted by the way of wireless transmit
Give manipulation and data handling equipment；Manipulation and data handling equipment receive described signal laggard row data analysis and process,
To the far-field radiation noise characteristic obtaining Propeller Model straight hair sound.
The straight hair sound assay device of a kind of vast scale Propeller Model the most according to claim 1, it is characterised in that: described
Main shaft system includes main shaft (8), thrust bearing (9) and clutch (10)；Main shaft (8) passes thrust bearing (9), the one of main shaft (8)
Holding be connected fixing with Propeller Model (2), the other end is fixing with clutch (10) to be connected；Main shaft system is realized by clutch (10)
Connection with motor (5) or disconnection；Support member (11) is with to be positioned at non-watertight housings (3) internal and outside in watertight housings (4)
Main shaft (8) fixing connect；The symmetrical centre point of hydrophone array (1) is on the extended line of main shaft (8).
The straight hair sound assay device of a kind of vast scale Propeller Model the most according to claim 1, it is characterised in that: watertight
Housing (4) internally installed motor damping mechanism (13), motor damping mechanism (13) contacts with motor (5).
The straight hair sound assay device of a kind of vast scale Propeller Model the most according to claim 1, it is characterised in that: described
Non-watertight housings (3) is made up of the damped coefficient composite not less than 1%.
The straight hair sound assay device of a kind of vast scale Propeller Model the most according to claim 1, it is characterised in that: described
The first natural frequency of watertight housings (4) is much larger than the axle frequency of motor (5) and the leaf frequency of Propeller Model (2).
The straight hair sound assay device of a kind of vast scale Propeller Model the most according to claim 1, it is characterised in that: described
Watertight housings (4) uses the thickness steel not less than 10mm to make；The inside coated with viscoelastic layer of watertight housings (4).
The straight hair sound assay device of a kind of vast scale Propeller Model the most according to claim 1, it is characterised in that: described
The power density of motor (5) is not less than 2kW/kg.
The straight hair sound assay device of a kind of vast scale Propeller Model the most according to claim 1, it is characterised in that: described
The cross section of rigidity connector (7) is streamlined, outer surface coated with viscoelastic layer.
The straight hair sound assay device of a kind of vast scale Propeller Model the most according to claim 1, it is characterised in that: described
The displacement of water surface unpowered ship is not less than 50 tons.
The straight hair sound assay device of a kind of vast scale Propeller Model the most according to claim 1, it is characterised in that: institute
Stating the size of Propeller Model (2) with the dimension scale of real ship's propeller is 1:4～20.
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| CN201610634823.9A CN106197945B (en) | 2016-08-05 | 2016-08-05 | A kind of straight hair sound experimental rig of large scale Propeller Model |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108313198A (en) * | 2017-12-13 | 2018-07-24 | 中国特种飞行器研究所 | A kind of submarine navigation device model opens water from air power instrument |
| CN108871730A (en) * | 2018-07-27 | 2018-11-23 | 武汉船用机械有限责任公司 | A kind of load testing apparatus for propeller |
| CN110567678A (en) * | 2019-08-30 | 2019-12-13 | 中国船舶工业集团公司第七0八研究所 | beam device for testing hydrodynamic performance of propeller |
| CN110763323A (en) * | 2019-10-25 | 2020-02-07 | 哈尔滨工程大学 | Low-frequency noise measuring device based on sound wave total reflection |
| CN112254943A (en) * | 2020-10-12 | 2021-01-22 | 中国船舶工业集团公司第七0八研究所 | Device and method for measuring external characteristics and noise performance of water jet propulsion pump |
| CN112798225A (en) * | 2021-01-21 | 2021-05-14 | 中国人民解放军海军工程大学 | Vertical tandem double-test-section cavity water tunnel test device |
| CN113984331A (en) * | 2021-10-12 | 2022-01-28 | 哈尔滨工程大学 | Low-noise externally-driven intelligent flow excitation test device and test method |
| CN114323386A (en) * | 2021-12-30 | 2022-04-12 | 中国特种飞行器研究所 | Underwater vehicle model control surface rudder force test device and method |
| CN114397006A (en) * | 2022-02-15 | 2022-04-26 | 西南交通大学 | Propeller flow noise measurement system under oscillation and steering motion |
| CN114689347A (en) * | 2020-12-28 | 2022-07-01 | 中国科学院沈阳自动化研究所 | Unmanned submersible auxiliary test system |
| CN114877989A (en) * | 2022-06-07 | 2022-08-09 | 西安石油大学 | Noise identification system and method for electric propeller |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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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| CN112254943A (en) * | 2020-10-12 | 2021-01-22 | 中国船舶工业集团公司第七0八研究所 | Device and method for measuring external characteristics and noise performance of water jet propulsion pump |
| CN112254943B (en) * | 2020-10-12 | 2023-03-31 | 中国船舶工业集团公司第七0八研究所 | Device and method for measuring external characteristics and noise performance of water jet propulsion pump |
| CN114689347A (en) * | 2020-12-28 | 2022-07-01 | 中国科学院沈阳自动化研究所 | Unmanned submersible auxiliary test system |
| CN112798225A (en) * | 2021-01-21 | 2021-05-14 | 中国人民解放军海军工程大学 | Vertical tandem double-test-section cavity water tunnel test device |
| CN112798225B (en) * | 2021-01-21 | 2023-09-05 | 中国人民解放军海军工程大学 | Vertical tandem double-test section cavitation water hole test device |
| CN113984331A (en) * | 2021-10-12 | 2022-01-28 | 哈尔滨工程大学 | Low-noise externally-driven intelligent flow excitation test device and test method |
| CN114323386A (en) * | 2021-12-30 | 2022-04-12 | 中国特种飞行器研究所 | Underwater vehicle model control surface rudder force test device and method |
| CN114323386B (en) * | 2021-12-30 | 2023-11-21 | 中国特种飞行器研究所 | Rudder force test device and method for control surface of underwater vehicle model |
| CN114397006A (en) * | 2022-02-15 | 2022-04-26 | 西南交通大学 | Propeller flow noise measurement system under oscillation and steering motion |
| CN114877989A (en) * | 2022-06-07 | 2022-08-09 | 西安石油大学 | Noise identification system and method for electric propeller |
| CN114877989B (en) * | 2022-06-07 | 2024-06-11 | 西安石油大学 | Noise identification system and method for electric propeller |
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| Publication number | Publication date |
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| CN106197945B (en) | 2018-10-19 |
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