CN109596308A - Ground effect vehicle fly close to water surface Stability Model basin test device and method - Google Patents
Ground effect vehicle fly close to water surface Stability Model basin test device and method Download PDFInfo
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- CN109596308A CN109596308A CN201811469848.3A CN201811469848A CN109596308A CN 109596308 A CN109596308 A CN 109596308A CN 201811469848 A CN201811469848 A CN 201811469848A CN 109596308 A CN109596308 A CN 109596308A
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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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Abstract
The invention discloses ground effect vehicle fly close to water surface Stability Model basin test device and test methods, full machine model is used in fly close to water surface Stability Model basin test, by carrying out full machine model fly close to water surface basin test, full machine model Angle of Trim, center of gravity heave variation are analyzed, thus forecasts fly close to water surface real machine stability.By hydrodynamic force high-speed test (HST) acting trailer system come the test speed of Controlling model in test, various wave environments are simulated using wave maker, Test Data Acquisition System acquires full machine model Angle of Trim and center of gravity heave value in wave motion, obtains full machine model Angle of Trim change curve and center of gravity heaves curve.Full machine model can be used to carry out test for fly close to water surface Stability Model basin test, thus analyze ground effect vehicle fly close to water surface stability.
Description
Technical field
The invention belongs to ground effect vehicle fly close to water surface method for analyzing stability fields, and in particular to imitate flight a kind ofly
Device fly close to water surface Stability Model basin test method.
Background technique
For ground effect vehicle in approximately level cruising flight, there are many external interference in the environment of stormy waves synergy:
The RANDOM WIND and shear wind disturbance of approximately level, wave, which hits the possibility of ground effect vehicle, to be formed violent random disturbances all and can make
Obvious motion change is generated at ground effect vehicle, generation is obviously trembled if fly close to water surface stability deficiency makes ground effect vehicle
It is dynamic, cause ground effect vehicle comfort poor, or even flight is dangerous.
In order to study ground effect vehicle fly close to water surface stability, mainly there are following a few class methods: fixed floor method at present
With movable floor method.
Fixed floor method by be placed below in blasting model the fixation plate of variable height come simulated flight device away from
Influence of the ground effect to aircraft when the different height flight of ground, existing same problem be can only dummy level ground,
And when using fixed floor method, since there are floor boundary layers, it is unable to real simulation aircraft near-earth flight condition, so that test knot
Fruit distortion.To reduce influence of the boundary layer flow to experimental result, it usually needs be modified to experimental result or using suction
Boundary layer flow is eliminated on gas floor.
Currently, this method by be placed below in blasting model the conveyor-belt apparatus (movable floor) of variable height come
Influence of the ground effect to aircraft when simulated flight device is away from ground different height flight.Movable floor method can be avoided aircraft
Occur boundary layer flow on following conveyer belt, thus can truer simulation on the ground empty flight when ground effect vehicle
Around flow condition but the movement velocity of conveyer belt limited by mechanism cannot be too high, generally below 3, therefore can not mould
The speed of service of the quasi- higher situation active belt of flying speed and direction are consistent with incoming flow, will not generate boundary layer, experimental precision
It is higher.The disadvantage is that the movement velocity by conveyer belt is influenced, can not the higher state of simulated flight speed, and be equally difficult to simulate
The influence of rough water.
Ground effect vehicle fly close to water surface Stability Model basin test can carry out a series of wave environments in towing basin
Lower fly close to water surface Stability Model test, the various wave environments of analog and ground effect vehicle surrounding flow cause the water surface
Shape, thus analyze ground effect vehicle fly close to water surface real machine stability.There is not a kind of practical ground effect vehicle also at present
Fly close to water surface Stability Model basin test method.
Summary of the invention
Goal of the invention
In order to solve the above technical problems, the present invention provides a kind of ground effect vehicle fly close to water surface Stability Model ponds
Test method is to analyze ground effect vehicle fly close to water surface stability.
Inventive technique solution
In order to achieve the above-mentioned object of the invention, the present invention uses following technical solutions:
Ground effect vehicle fly close to water surface Stability Model basin test device, including full machine model and testing equipment；
Full machine model is mounted on hydrodynamic force high speed by the carriage that center of gravity strut, longitudinal limiting device and heave bar form
On seaworthiness instrument below experiment carriage system, wherein longitudinal limiting device is mounted on seaworthiness instrument, and heave bar and center of gravity strut are solid
Fixed connection, center of gravity strut ends are connect with full machine model activity；It the navigational chip of full machine model front end and is fixed on seaworthiness instrument
Navigation bar matches；Full machine model tail portion is fixed with interference and applies rope；
Testing equipment includes the video recorder for being set to the front of full machine model, Test Data Acquisition System and stay-supported displacement
Sensor is mounted in hydrodynamic force high-speed test (HST) acting trailer system, and Inertial Measurement Unit is mounted in full machine model, is passed by data
Test Data Acquisition System is connected with Inertial Measurement Unit and stay-supported type displacement sensor by defeated cable respectively.
Preferably, center of gravity strut is located at full machine model position of centre of gravity point with the point that is flexibly connected of full machine model, makes full machine mould
Type can be around the free pitch rotation of position of centre of gravity point.
Preferably, center of gravity strut is adopted with full machine model and is hinged.
Preferably, using the on and off of video recording machine control system control video recorder, and video recording control.
Preferably, video recorder is mounted below hydrodynamic force high-speed test (HST) acting trailer system using video recorder fixed bracket, and
Guarantee that video recorder does not occur obviously to tremble during the test.
Ground effect vehicle fly close to water surface Stability Model basin test method, includes the following steps:
Step 1: opening Test Data Acquisition System for the initial value that stay-supported type displacement sensor measures and be set as zero, and is right
Initial value is arranged in the Angle of Trim of Inertial Measurement Unit measurement；
Step 2: when test, Test Data Acquisition System starts the Angle of Trim number for acquiring Inertial Measurement Unit measurement in real time
According to and stay-supported type displacement sensor measurement model center of gravity heave data；
Step 3: hydrodynamic force high-speed test (HST) acting trailer system brings into operation, and hydrodynamic test high speed acting trailer system is transported in orbit
The full machine model on the water surface is driven to move with same speed when dynamic, after trailer acceleration reaches the speed of service of test requirements document,
By the trailer speed of service continually and steadily in the minimum variation range of the towed speed, relevant parameter is recorded；
Step 4: Vertical Disturbing of bowing being applied to full machine model by manually applying rope by interference, and to full machine model sport
Situation is recorded a video, and every time after the test, records this video recording number in each video recorder.
Preferably, the relevant parameter in step 3 includes trailer speed, angle of flap deflection degree and elevator angle degree.
Preferably, the velocity variable after the trailer speed of service is stablized in step 3 controls in 2 ‰ ranges.
Advantages of the present invention
The present invention has the advantages that
The invention patent can be widely used in the water surface flyings device fly close to water surface stability analysis such as ground effect vehicle, branch
It supports the serial ground effect vehicle development of my institute and establishes technical foundation, there is more vast market prospect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of ground effect vehicle fly close to water surface Stability Model basin test device of the invention.
In figure: the full machine model of 1-, 2- video recorder, 3- navigational chip, 4- navigation bar, 5- heave bar, 6- Test Data Collecting system
System, 7- center of gravity strut, 8- seaworthiness instrument, 9- longitudinal limiting device, the fixed bracket of 10- video recorder, 11- stay-supported type displacement sensor,
12- Inertial Measurement Unit, 13- hydrodynamic force high-speed test (HST) acting trailer system, 14- interference apply rope.
Specific embodiment
In conjunction with summary of the invention general introduction and attached drawing, the specific embodiment that the present invention will be described in detail.
Ground effect vehicle fly close to water surface Stability Model basin test device, including full machine model 1 and testing equipment.
A) installation of full machine model 1:
The carriage that full machine model 1 is made of center of gravity strut 7, longitudinal limiting device 9 and heave 5 three of bar, installation
On the seaworthiness instrument 8 below hydrodynamic force high-speed test (HST) acting trailer system 13, wherein longitudinal limiting device 9 is installed on seaworthiness instrument 8, is risen
Heavy bar 5 and center of gravity strut 7 are affixed, and 7 end of center of gravity strut is flexibly connected with full machine model 1, which guarantees full machine model
It can move up and down in a certain range, and center of gravity strut 7 takes complete 1 center of gravity position of machine model with the point that is flexibly connected of full machine model 1
It sets a little, and adopts and be hinged, then full machine model 1 can be around the free pitch rotation of position of centre of gravity point.Hydrodynamic force high-speed test (HST) trailer
The navigation bar 4 of 12 bottom of system is matched with the slot on the navigational chip 3 of complete 1 front end of machine model to prevent model during the test
Yaw is generated, and guarantees in test full machine model 1 without obvious heel.In complete 1 tail portion of machine model, fixed interference applies rope 14, by
The full machine model 1 of 14 pairs of rope is manually applied by interference and applies Vertical Disturbing of bowing.Navigation bar 4 is fixed on seaworthiness instrument 8, seaworthiness instrument 8
It is fixed on hydrodynamic force high-speed test (HST) acting trailer system 13.
B) testing equipment is installed:
Equipment relevant to complete 1 fly close to water surface basin test of machine model has video recorder 2, video recording machine control system 15, is used to
Property measuring unit 12, Test Data Acquisition System 6 and stay-supported type displacement sensor 11, be located at full machine model 1 front install
Video recorder 2, and guarantee from video recorder 2 can intuitively from full machine model 1 motion conditions during the test, work as model in this way
There is abnormal motion situation, testing crew can determine whether to need to stop test with guarantee test safety, be controlled using video recorder
System 15 controls the on and off of video recorder, and video recording control.Video recorder 2 is mounted on using video recorder fixed bracket 10
13 lower section of hydrodynamic force high-speed test (HST) acting trailer system, and guarantee that video recorder does not occur obviously to tremble during the test.Test data
Acquisition system 6 and stay-supported type displacement sensor 11 are mounted in hydrodynamic force high-speed test (HST) acting trailer system 13, Inertial Measurement Unit 12
Be mounted in full machine model 1, by data transmission cable by Test Data Acquisition System 6 respectively with Inertial Measurement Unit 12 and draw
Wire type displacement sensor 11 is connected.
C) the complete unpowered model water of machine is carried out using ground effect vehicle fly close to water surface Stability Model basin test device
The method of pond test:
It opens Test Data Acquisition System 6 and sets zero for the initial value that stay-supported type displacement sensor 11 measures, and to used
Property measuring unit 12 measure Angle of Trim be arranged initial value.
When test, Test Data Acquisition System 6 starts to acquire the trim angular data that Inertial Measurement Unit 12 measures in real time, with
And the data of the model center of gravity heave of the measurement of stay-supported type displacement sensor 11.Then hydrodynamic force high-speed test (HST) acting trailer system 13 is opened
Begin operation, hydrodynamic test high speed acting trailer system 13 in orbit move when drive on the water surface full machine model 1 with same speed
Movement, after trailer acceleration reaches the speed of service of test requirements document, by the trailer speed of service continually and steadily in the towed speed pole
In small variation range, velocity variable is controlled in the range of 2 ‰, record trailer speed, angle of flap deflection degree and elevator
The parameters such as deflection angle apply Vertical Disturbing of bowing by manually applying the full machine model 1 of 14 pairs of rope by interference at this time, and to full machine
1 motion conditions of model are recorded a video, and every time after the test, record this video recording number in each video recorder.To entirely test knot
Shu Hou heaves change curve according to 1 Angle of Trim of machine model complete under a series of experiments state, center of gravity, and analysis obtains full machine model 1 and applies
Add interference front and back Angle of Trim, center of gravity heave changing value.Then Data Analysis Services personnel should analyze collected apply and interfere front and back
The validity of Angle of Trim, center of gravity heave changing value, rejects fail data.It is final to determine full machine model 1 under a series of experiments state
Apply interference front and back Angle of Trim, center of gravity heaves changing value, and thus analyzes real machine fly close to water surface stability.
Claims (8)
1. ground effect vehicle fly close to water surface Stability Model basin test device, which is characterized in that including full machine model (1) and
Testing equipment；
Full machine model (1) is mounted on water by the carriage that center of gravity strut (7), longitudinal limiting device (9) and heave bar (5) form
On seaworthiness instrument (8) below power high-speed test (HST) acting trailer system (13), wherein longitudinal limiting device (9) is mounted on boat instrument (8)
On, heave bar (5) is fixedly connected with center of gravity strut (7), and center of gravity strut (7) end is flexibly connected with full machine model (1)；Full machine mould
The navigational chip (3) of type (1) front end is matched with the navigation bar (4) being fixed on seaworthiness instrument (8)；Full machine model (1) tail portion is fixed
There is interference to apply rope (14)；
Testing equipment includes the video recorder (2) for being set to the front of full machine model (1), Test Data Acquisition System (6) and bracing wire
Formula displacement sensor (11) is mounted in hydrodynamic force high-speed test (HST) acting trailer system (13), and Inertial Measurement Unit (12) is mounted on full machine
In model (1), by data transmission cable by Test Data Acquisition System (6) respectively with Inertial Measurement Unit (12) and stay-supported
Displacement sensor (11) is connected.
2. ground effect vehicle fly close to water surface Stability Model basin test device as described in claim 1, which is characterized in that
Center of gravity strut (7) is located at full machine model (1) position of centre of gravity point with the point that is flexibly connected of full machine model (1), makes full machine model (1) energy
Around the free pitch rotation of position of centre of gravity point.
3. ground effect vehicle fly close to water surface Stability Model basin test device as described in claim 1, which is characterized in that
Center of gravity strut (7) is adopted with full machine model (1) and is hinged.
4. ground effect vehicle fly close to water surface Stability Model basin test device as described in claim 1, which is characterized in that
Use the on and off of video recording machine control system (15) control video recorder (2), and video recording control.
5. ground effect vehicle fly close to water surface Stability Model basin test device as described in claim 1, which is characterized in that
Video recorder (2) is mounted below hydrodynamic force high-speed test (HST) acting trailer system (13) using video recorder fixed bracket (10), and is guaranteed
Video recorder (2) does not occur obviously to tremble during the test.
6. using the ground effect vehicle fly close to water surface Stability Model basin test device as described in Claims 1 to 5 is any
The method tested, which comprises the steps of:
Step 1: Test Data Acquisition System (6), which are opened, by the initial value that stay-supported type displacement sensor (11) measures is set as zero,
And initial value is arranged to the Angle of Trim of Inertial Measurement Unit (12) measurement；
Step 2: when test, Test Data Acquisition System (6) starts the Angle of Trim of acquisition Inertial Measurement Unit (12) measurement in real time
The data of the model center of gravity heave of data and stay-supported type displacement sensor (11) measurement；
Step 3: hydrodynamic force high-speed test (HST) acting trailer system (13) brings into operation, and hydrodynamic test high speed acting trailer system (13) is in track
Drive the full machine model (1) on the water surface with the movement of same speed when upper movement, when trailer accelerates the operation for reaching test requirements document
After speed, by the trailer speed of service continually and steadily in the minimum variation range of the towed speed, relevant parameter is recorded；
Step 4: Vertical Disturbing of bowing being applied to full machine model 1 by manually applying rope (14) by interference, and to full machine model (1)
Motion conditions are recorded a video, and every time after the test, record this video recording number in each video recorder.
7. ground effect vehicle fly close to water surface Stability Model basin test method as claimed in claim 6, which is characterized in that
Relevant parameter in step 3 includes trailer speed, angle of flap deflection degree and elevator angle degree.
8. ground effect vehicle fly close to water surface Stability Model basin test method as claimed in claim 6, which is characterized in that
Velocity variable after the trailer speed of service is stablized in step 3 controls in 2 ‰ ranges.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608755A (en) * | 2019-09-23 | 2019-12-24 | 重庆华渝电气集团有限公司 | Heave measurement performance detection device and method for inertial navigation equipment |
| CN111879497A (en) * | 2020-04-30 | 2020-11-03 | 中国特种飞行器研究所 | Wave floor testing device for aircraft ground effect wind tunnel test |
| CN112179634A (en) * | 2020-09-22 | 2021-01-05 | 中国特种飞行器研究所 | Overwater forced landing test device and method based on unmanned launch vehicle |
| CN112810836A (en) * | 2020-12-30 | 2021-05-18 | 中国特种飞行器研究所 | Water drawing test device with controllable and adjustable sliding posture and draft |
| CN113650805A (en) * | 2021-07-30 | 2021-11-16 | 中国特种飞行器研究所 | Device and method for testing water surface floating characteristic model of rotor type airplane |
| CN114295321A (en) * | 2021-12-30 | 2022-04-08 | 中国特种飞行器研究所 | Pneumatic test testing device and method for air cushion aircraft model |
| CN114705390A (en) * | 2022-04-12 | 2022-07-05 | 中国空气动力研究与发展中心低速空气动力研究所 | Test device for simulating low-altitude wind shear in airplane lifting process |
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| CN108362473A (en) * | 2017-12-13 | 2018-08-03 | 中国特种飞行器研究所 | A kind of single hull model basin test method of the anti-unrestrained ability of water surface flying device |
| CN108362475A (en) * | 2017-12-13 | 2018-08-03 | 中国特种飞行器研究所 | A kind of water surface flying device model basin experiment aerodynamic lift analogy method |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608755A (en) * | 2019-09-23 | 2019-12-24 | 重庆华渝电气集团有限公司 | Heave measurement performance detection device and method for inertial navigation equipment |
| CN111879497A (en) * | 2020-04-30 | 2020-11-03 | 中国特种飞行器研究所 | Wave floor testing device for aircraft ground effect wind tunnel test |
| CN111879497B (en) * | 2020-04-30 | 2024-04-09 | 中国特种飞行器研究所 | Wave floor test device for ground effect wind tunnel test of aircraft |
| CN112179634A (en) * | 2020-09-22 | 2021-01-05 | 中国特种飞行器研究所 | Overwater forced landing test device and method based on unmanned launch vehicle |
| CN112810836A (en) * | 2020-12-30 | 2021-05-18 | 中国特种飞行器研究所 | Water drawing test device with controllable and adjustable sliding posture and draft |
| CN113650805A (en) * | 2021-07-30 | 2021-11-16 | 中国特种飞行器研究所 | Device and method for testing water surface floating characteristic model of rotor type airplane |
| CN113650805B (en) * | 2021-07-30 | 2024-04-09 | 中国特种飞行器研究所 | Device and method for testing water surface floating characteristic model of rotor wing type aircraft |
| CN114295321A (en) * | 2021-12-30 | 2022-04-08 | 中国特种飞行器研究所 | Pneumatic test testing device and method for air cushion aircraft model |
| CN114705390A (en) * | 2022-04-12 | 2022-07-05 | 中国空气动力研究与发展中心低速空气动力研究所 | Test device for simulating low-altitude wind shear in airplane lifting process |
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