CN108387362A - A kind of aero-optical effect simulator - Google Patents
A kind of aero-optical effect simulator Download PDFInfo
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- CN108387362A CN108387362A CN201810421662.4A CN201810421662A CN108387362A CN 108387362 A CN108387362 A CN 108387362A CN 201810421662 A CN201810421662 A CN 201810421662A CN 108387362 A CN108387362 A CN 108387362A
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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
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/08—Aerodynamic models
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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
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/06—Measuring arrangements specially adapted for aerodynamic testing
- G01M9/065—Measuring arrangements specially adapted for aerodynamic testing dealing with flow
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/08—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/08—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics
- G09B23/12—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics of liquids or gases
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Abstract
A kind of aero-optical effect simulator belongs to Pneumatic optical technical field；The aero-optical effect simulator includes the black matrix of opening upwards, and the tank body downward in black matrix upper opening is arranged, is connected by stretching structure between the opening of black matrix and the opening of tank body, stretching structure is internally provided with the double-deck fan；Stretching structure includes internal layer telescoping tube, insulating layer and outer layer telescoping tube successively from inside to outside, and internal layer telescoping tube includes the telescoping tube composition for being arranged at intermediate non-telescoping end and being connected to non-refreshing contracting end both ends, and iris structure is installed on non-refreshing contracting end；The double-deck fan includes the first fan and the second fan setting up and down, and the blade quantity of the first fan and the second fan is different, and rotating speed is different, turns to different, and each blade width in the first fan and the second fan is different；The present invention forms the characteristic of strong convection using hot and cold gas, directly generates the air-flow for generating aero-optical effect, realizes the purpose that aero-optical effect is directly simulated.
Description
The application is application for a patent for invention《A kind of aero-optical effect simulator》Divisional application.
The original bill applying date：2016-10-08.
Original bill application number：2016108763715.
Original bill denomination of invention：A kind of aero-optical effect simulator.
Technical field
A kind of aero-optical effect simulator belongs to Pneumatic optical technical field.
Background technology
Aircraft is in atmosphere high speed flight, due to generating actual gas effect between its optical dome and free incoming
Answer, SHOCK WAVE INDUCED boundary layer separation, interfering with each other without viscosity flow and boundary layer, to generate because of current density variation, temperature
Complex flowfield caused by variation, constituent variation and gas molecule ionization etc., this causes heat, heat to infrared imaging detection system
Radiation and image transmitting interference cause target offset, shake, obscure, and this effect is known as aero-optical effect.
Aero-optical effect brings adverse effect to infrared image terminal guidance, make target seeker to the detection of target, tracking with
Recognition capability declines, and then influences terminal guidance precision.Since flow field density changes, the original of the light propagated wherein is changed
Path generates deviation and phase change, causes the offset for causing image on imaging plane, obscures, shake and energy loss.Such as
Fruit can explore Pneumatic optical degeneration mechanism, it will be able to correct Pneumatic optical degeneration image, reduce aberration, improve optical imagery matter
Amount.As it can be seen that it is to improve the committed step of picture quality to explore Pneumatic optical degeneration mechanism.
Pneumatic optical degeneration mechanism is explored, needs to simulate aero-optical effect.Currently, many aero-optical effect simulation dresses
It is all optical analog device to set, such as application No. is 201410456264.8 patents of invention《Pneumatic light based on distorted image
Learn effect analog device》And algorithm simulation, such as application No. is 201310193486.0 patents of invention《A kind of simulation is pneumatic
The method and system of optical effect》, these simulators or method all do not directly generate the air-flow for generating aero-optical effect,
It is consequently belonging to indirect analog, and is not belonging to directly simulate, therefore is also had any different apart from actual aero-optical effect.
Invention content
To solve the above-mentioned problems, the invention discloses a kind of aero-optical effect simulator, which utilizes
Hot and cold gas form the characteristic of strong convection, directly generate the air-flow for generating aero-optical effect, realize that aero-optical effect is straight
Connect the purpose of simulation.
The object of the present invention is achieved like this：
A kind of aero-optical effect simulator, includes the black matrix of opening upwards, and the tank body downward in black matrix upper opening is arranged,
It is connected by stretching structure between the opening of black matrix and the opening of tank body, the stretching structure is internally provided with the double-deck fan；
The black matrix includes ceramic layer, middle layer, cooling layer and shell successively from inside to outside；It is provided among the middle layer
Resistance wire, inner wall are provided with temperature sensor, the cooling layer water-filling；
The top of the tank is provided with opening, and lid is provided in opening；
The stretching structure includes internal layer telescoping tube, insulating layer and outer layer telescoping tube, the internal layer telescoping tube successively from inside to outside
Telescoping tube composition including being arranged at intermediate non-telescoping end and being connected to non-refreshing contracting end both ends, is installed double-deck on non-refreshing contracting end
Fan；
The bilayer fan includes the first fan and the second fan setting up and down, the blade of first fan and the second fan
Quantity is different, and rotating speed is different, turns to different, each blade width difference in the first fan and the second fan.
Above-mentioned vertical pneumatic optical effect simulator, further includes water tank and water pump, and the cooling layer top and bottom are each
There are one outlet, the water in water tank is pumped into cooling layer outlet at bottom by water pump, and water is from cooling layer top exit reflow tank.
Above-mentioned vertical pneumatic optical effect simulator, the lid are stove circle structure, including multiple diameters are different, phase successively
Set, the annular ring that section is hierarchic structure.
Above-mentioned vertical pneumatic optical effect simulator, the tank body are stretching structure.
The above vertical pneumatic optical effect simulator, further includes optical imaging system, and the optical imaging system includes
Light source, pin hole, collimation lens, grating, object lens and imaging sensor；The light beam that light source is sent out forms point light source through needle passing hole, then
Collimated light beam is formed after collimation lens collimates, illuminates grating, the grating is separately positioned on object lens with imaging sensor
Object space and image space；Wherein, light source, pin hole, collimation lens and grating are arranged inside black matrix, and imaging sensor is arranged in tank body
Portion, object lens are arranged inside black matrix or tank interior.
The grating can where it 90 degree of plane internal rotation.
Advantageous effect：
The first, due to using black matrix and tank body be open it is opposite by the way of be arranged, it is strong right to be formed using hot and cold gas
The characteristic of stream directly generates the air-flow for generating aero-optical effect, realizes the purpose that aero-optical effect is directly simulated；
The second, due to being connected by stretching structure between the opening of black matrix and the opening of tank body, the length of stretching structure, energy are adjusted
The convection current for enough changing hot and cold gas is strong, and then changes gas turbulence parameter, therefore can change aero-optical effect simulation effect
Fruit, and then increase the simulation context of aero-optical effect simulator of the present invention；
Third, due to being provided with the double-deck fan, the bilayer fan includes the first fan and the second fan setting up and down, described
The blade quantity of first fan and the second fan is different, and rotating speed is different, turns to different, each of the first fan and the second fan
Blade width is different；This blade quantity is different, and rotating speed is different, turns to difference, the different design of each blade width can be true
The randomness for protecting turbulent flow avoids turbulent flow simulation from having the problem of local period characteristic, emulation distortion.
Description of the drawings
Fig. 1 is the structural schematic diagram of aero-optical effect simulator of the present invention.
Fig. 2 is the structural schematic diagram of black matrix.
Fig. 3 is the structural schematic diagram of stretching structure.
Fig. 4 is the structural schematic diagram of black matrix in specific embodiment two.
Fig. 5 is the structural schematic diagram of lid.
Fig. 6 is the structural schematic diagram of optical imaging system in aero-optical effect simulator of the present invention.
In figure：1 black matrix, 11 ceramic layers, 12 middle layers, 13 cooling layers, 14 shells, 2 tank bodies, 3 stretching structures, 31 internal layers are stretched
The draw, 32 insulating layers, 33 outer layer telescoping tubes, the 4 double-deck fans, 41 first fans, 42 second fans, 5 lids, 6 water tanks, 7 water pumps, 8
Optical imaging system, 81 light sources, 82 pin holes, 83 collimation lenses, 84 gratings, 85 object lens, 86 imaging sensors.
Specific implementation mode
The specific embodiment of the invention is described in further detail below in conjunction with the accompanying drawings.
Specific embodiment one
The aero-optical effect simulator of the present embodiment, structural schematic diagram are as shown in Figure 1.The aero-optical effect simulator
Black matrix 1 including opening upwards, is arranged the tank body 2 downward in 1 upper opening of black matrix, the opening of black matrix 1 and the opening of tank body 2 it
Between connected by stretching structure 3, the stretching structure 3 is internally provided with the double-deck fan 4；
The black matrix 1 includes ceramic layer 11, middle layer 12, cooling layer 13 and shell 14 successively from inside to outside；The middle layer
Resistance wire is provided among 12, inner wall is provided with temperature sensor, 13 water-filling of the cooling layer；The structural schematic diagram of black matrix 1 is such as
Shown in Fig. 2；
2 top of the tank body is provided with opening, and lid 5 is provided in opening；
The stretching structure 3 includes internal layer telescoping tube 31, insulating layer 32 and outer layer telescoping tube 33, the internal layer successively from inside to outside
Telescoping tube 31 includes the telescoping tube composition for being arranged at intermediate non-telescoping end and being connected to non-refreshing contracting end both ends, on non-refreshing contracting end
Installation bilayer fan 4；The structural schematic diagram of stretching structure 3 is as shown in Figure 3；
The bilayer fan 4 includes the first fan 41 and the second fan 42 setting up and down, first fan, 41 and second wind
The blade quantity of fan 42 is different, and rotating speed is different, turns to difference, each blade width in the first fan 41 and the second fan 42 is not
Together.
Specific embodiment two
The vertical pneumatic optical effect simulator of the present embodiment is further limited and is also wrapped on the basis of specific embodiment one
Water tank 6 and water pump 7 are included, for 13 top and bottom of the cooling layer respectively there are one outlet, the water in water tank 6 is pumped into cooling by water pump 7
13 outlet at bottom of layer, water is from 13 top exit reflow tank of cooling layer, as shown in Figure 4.
This structure design had both realized the heat preservation to ceramic layer 11 and middle layer 12 using the slow thermal conductivity of water, it is ensured that
The stability of the simulated aero-optical effect of aero-optical effect simulator, and realize the cooling to shell 14, it is ensured that it is real
Test safety.
Specific embodiment three
The vertical pneumatic optical effect simulator of the present embodiment further limits described on the basis of specific embodiment one
Lid 5 is stove circle structure, including multiple diameters it is different, be nested successively, the annular ring that section is hierarchic structure, as shown in figure 5, Fig. 5
Show three annular rings it is superimposed and superposition after stove circle structure schematic diagram.
This structure design can realize the openings of sizes of adjustment lid 5, and then not by adjusting the quantity of annular ring
Under the premise of changing other structures, parameter and technical indicator, changes aero-optical effect and simulate effect, and then increase gas of the present invention
The simulation context of dynamic optical effect simulator.
Specific embodiment four
The vertical pneumatic optical effect simulator of the present embodiment further limits described on the basis of specific embodiment one
Tank body 2 is stretching structure.
This structure design can be realized by adjusting the length of tank body 2 and do not changing other structures, parameter and technology
Under the premise of index, changes aero-optical effect and simulate effect, and then increase the mould of aero-optical effect simulator of the present invention
Quasi- range.
In specific embodiment three and specific embodiment four, by change lid 5 openings of sizes or change tank body 2 length come
Change aero-optical effect and simulate effect, and then increase the simulation context of aero-optical effect simulator of the present invention, is to use
Air-flow carries out aero-optical effect and directly simulates the characteristic just having, which does not illustrate not only in the prior art, but also
Also the cognition of those skilled in the art is had exceeded.
Specific embodiment five
The above vertical pneumatic optical effect simulator further includes optical imaging system 8, the optical imaging system such as Fig. 6 institutes
Show, including light source 81, pin hole 82, collimation lens 83, grating 84, object lens 85 and imaging sensor 86；The light beam that light source 81 is sent out,
Point light source is formed through needle passing hole 82, collimated light beam is formed after being collimated using collimation lens 83, illuminates grating 84, the grating 84
The object space and image space of object lens 85 are separately positioned on imaging sensor 86；Wherein, light source 81, pin hole 82, collimation lens 83 and light
Grid 84 are arranged inside black matrix 1, and imaging sensor 86 is arranged inside tank body 2, and the setting of object lens 85 is in 1 inside of black matrix or tank body 2
It is internal.
This structure design can simulate effect to Pneumatic optical and be monitored, the figure obtained using imaging sensor 86
As the calculating to decay into 84 contrast of line raster, resistance wire is controlled according to result of calculation and adjusts the threshold value of temperature sensor, it is real
Existing whole system closed-loop control is conducive to the accuracy for improving aero-optical effect simulation.
Specific embodiment six
The vertical pneumatic optical effect simulator of the present embodiment further limits described on the basis of specific embodiment five
Grating 84 can where it 90 degree of plane internal rotation.
It has been investigated that carrying out the direct analog form of aero-optical effect using air-flow and using optical analog and algorithm mould
The essential distinction of quasi- indirect analog mode is that air-flow optical analog and algorithm simulation can occur in two-dimensional directional to be controlled
Difference, such difference using air-flow can not accurately control when aero-optical effect is directly simulated, this characteristic is not only
Do not illustrate in the prior art, and have exceeded the cognition of those skilled in the art, it is therefore necessary to all to two-dimensional directional
It is monitored.And this structure qualification of the present embodiment, it can realize the contrast variation of monitoring grating 84 in the two-dimensional direction
Rule effectively avoids single direction from realizing and simulates, and the problem that other direction is not up to standard, is conducive to improve aero-optical effect mould
Quasi- accuracy.
It should be noted that in the embodiment above, as long as reconcilable technical solution can carry out permutation and combination, this
Field technology personnel can be possible to according to the mathematical knowledge limit of permutation and combination, and therefore, the present invention is no longer to permutation and combination
Technical solution afterwards is illustrated one by one, but it is understood that presently disclosed for the technical solution after permutation and combination.
Claims (2)
1. a kind of aero-optical effect simulator, which is characterized in that the black matrix including opening upwards（1）, it is arranged in black matrix（1）
The downward tank body of upper opening（2）, black matrix（1）Opening and tank body（2）Opening between pass through stretching structure（3）Connection, institute
State stretching structure（3）It is internally provided with the double-deck fan（4）；
The black matrix（1）Include ceramic layer successively from inside to outside（11）, middle layer（12）, cooling layer（13）And shell（14）；
The middle layer（12）Centre is provided with resistance wire, and inner wall is provided with temperature sensor, the cooling layer（13）Water-filling；
The tank body（2）Top is provided with opening, and lid is provided in opening（5）；
The stretching structure（3）Include internal layer telescoping tube successively from inside to outside（31）, insulating layer（32）With outer layer telescoping tube（33）,
The internal layer telescoping tube（31）Telescoping tube composition including being arranged at intermediate non-telescoping end and being connected to non-refreshing contracting end both ends,
The double-deck fan of installation on non-god's contracting end（4）；
The bilayer fan（4）Including the first fan setting up and down（41）With the second fan（42）, first fan（41）
With the second fan（42）Blade quantity it is different, rotating speed is different, turns to different, the first fan（41）With the second fan（42）In
Each blade width is different；
It further include water tank（6）And water pump（7）, the cooling layer（13）Respectively there are one outlet, water pumps for top and bottom（7）By water tank
（6）In water be pumped into cooling layer（13）Outlet at bottom, water is from cooling layer（13）Top exit reflow tank.
2. vertical pneumatic optical effect simulator according to claim 1, which is characterized in that the grating（84）It can
90 degree of plane internal rotation where it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810421662.4A CN108387362B (en) | 2016-10-08 | 2016-10-08 | A kind of aero-optical effect simulator |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610876371.5A CN106441796B (en) | 2016-10-08 | 2016-10-08 | A kind of aero-optical effect simulator |
| CN201810421662.4A CN108387362B (en) | 2016-10-08 | 2016-10-08 | A kind of aero-optical effect simulator |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610876371.5A Division CN106441796B (en) | 2016-10-08 | 2016-10-08 | A kind of aero-optical effect simulator |
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| CN108387362A true CN108387362A (en) | 2018-08-10 |
| CN108387362B CN108387362B (en) | 2019-10-11 |
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| CN201810422330.8A Pending CN108507755A (en) | 2016-10-08 | 2016-10-08 | Turbulence effect simulator |
| CN201810421662.4A Expired - Fee Related CN108387362B (en) | 2016-10-08 | 2016-10-08 | A kind of aero-optical effect simulator |
| CN201610876371.5A Expired - Fee Related CN106441796B (en) | 2016-10-08 | 2016-10-08 | A kind of aero-optical effect simulator |
| CN201810422333.1A Pending CN108827586A (en) | 2016-10-08 | 2016-10-08 | Aero-optical effect simulator |
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| CN201610876371.5A Expired - Fee Related CN106441796B (en) | 2016-10-08 | 2016-10-08 | A kind of aero-optical effect simulator |
| CN201810422333.1A Pending CN108827586A (en) | 2016-10-08 | 2016-10-08 | Aero-optical effect simulator |
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- 2016-10-08 CN CN201810422330.8A patent/CN108507755A/en active Pending
- 2016-10-08 CN CN201810421662.4A patent/CN108387362B/en not_active Expired - Fee Related
- 2016-10-08 CN CN201610876371.5A patent/CN106441796B/en not_active Expired - Fee Related
- 2016-10-08 CN CN201810422333.1A patent/CN108827586A/en active Pending
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| JPH09301291A (en) * | 1996-05-20 | 1997-11-25 | Nissan Motor Co Ltd | Wind channel experimental device for parachute |
| CN101261176A (en) * | 2008-04-03 | 2008-09-10 | 华中科技大学 | Sequence image correction based pneumatic optical transmission effect evaluation method and apparatus |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108827586A (en) | 2018-11-16 |
| CN106441796B (en) | 2018-09-11 |
| CN108387362B (en) | 2019-10-11 |
| CN106441796A (en) | 2017-02-22 |
| CN108507755A (en) | 2018-09-07 |
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