CN210071144U - Electric arc wind tunnel heat-infrared transmission combined test device - Google Patents
Electric arc wind tunnel heat-infrared transmission combined test device Download PDFInfo
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- CN210071144U CN210071144U CN201920773673.9U CN201920773673U CN210071144U CN 210071144 U CN210071144 U CN 210071144U CN 201920773673 U CN201920773673 U CN 201920773673U CN 210071144 U CN210071144 U CN 210071144U
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Abstract
An electric arc wind tunnel heat-infrared transmission combined test device relates to the field of aircraft ground aerodynamic heat test research; the device comprises an electric arc heater, a spray pipe, an optical side window hood, a target generator, an observation window, a light-transmitting cylinder, a thermal infrared imager, a ground refrigeration air source and a vacuum test chamber; the axial inlet end of the spray pipe is butted with the electric arc heater; the axial outlet end of the spray pipe extends into the vacuum test chamber; the optical side window hood is arranged at the position of the outlet end of the spray pipe; the observation window is arranged corresponding to the optical side window hood; the target generator is arranged at the outer side of the vacuum test chamber and is arranged corresponding to the observation window; the thermal infrared imager is correspondingly arranged at a position opposite to the target generator; the light-transmitting cylinder is arranged between the thermal infrared imager and the optical side window head cover; the ground refrigeration air source realizes the cooling of the optical side window hood; the utility model discloses a develop infrared terminal guidance hood complete machine heat-infrared transmission effect joint test, provide infrared guidance transmission operational environment's wind-tunnel ground simulation ability.
Description
Technical Field
The utility model relates to an aircraft ground aerodynamic heat test research field, especially an electric arc wind-tunnel heat-infrared transmission combined test device.
Background
The guidance weapon technology has received more and more attention in the development of aerospace technology and novel weapon technology in various countries, and the development of hypersonic aircrafts is developed in the united states, russia and china in succession, and the THAAD, Arrow-2 missile system, foundation defense system and the like developed and deployed in the united states all adopt the direction of infrared imaging guidance to improve the accuracy of the aircrafts. The hypersonic aircraft adopting infrared guidance enters the atmosphere again, the surface of the infrared side window is pneumatically heated, shock waves are generated on the surface of the model, at the moment, the flow field on the surface of the side window can generate complicated shock waves, the boundary layers can interfere with each other, separate and rotate and other flow phenomena, when infrared light beams are transmitted in the flow field, deflection, scattering and absorption can occur due to the drastic change of density gradient, and the pneumatic optical effect occurs. The presence of aerodynamic optical effects can present challenges to the detection of infrared targets that produce blurring, distortion, jitter, offset, and energy attenuation in the seeker imaged target. Therefore, the ground test research of the infrared guidance of the hypersonic aircraft is necessary, and the ground test research is a necessary basic demonstration mode for weaponizing the hypersonic guidance system. At present, a ground test device which can completely simulate the pneumatic optical effect research under the pneumatic heating condition of a hypersonic aircraft does not exist in the prior art, and the ground test device lacks of simulation capability in the aspect of providing the wind tunnel ground of an infrared guidance transmission working environment by developing the whole machine heat-infrared transmission effect combined test of an infrared terminal guidance hood.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's the aforesaid not enough, provide an electric arc wind-tunnel heat-infrared transmission combined test device, realized developing infrared terminal hood complete machine heat-infrared transmission effect combined test, provide infrared guidance transmission operational environment's wind-tunnel ground simulation ability.
The above object of the present invention is achieved by the following technical solutions:
the electric arc wind tunnel heat-infrared transmission combined test device comprises an electric arc heater, a spray pipe, an optical side window hood, a target generator, an observation window, a light-transmitting cylinder, a thermal infrared imager, a ground refrigeration air source and a vacuum test chamber; wherein, the electric arc heater is horizontally arranged, and the axial inlet end of the spray pipe is butted with the electric arc heater; the axial outlet end of the spray pipe extends into the vacuum test chamber; the optical side window hood is arranged at the position of the outlet end of the spray pipe; the observation window is arranged on the side wall of the vacuum test chamber; the observation window corresponds to the optical side window hood; the target generator is arranged at the outer side of the vacuum test chamber and is correspondingly arranged with the observation window; the thermal infrared imager is correspondingly arranged outside the vacuum test chamber and opposite to the target generator; the light-transmitting cylinder is arranged between the thermal infrared imager and the optical side window head cover; the ground refrigeration air source is arranged outside the vacuum test chamber to realize the cooling of the optical side window hood.
In the electric arc wind tunnel heat-infrared transmission combined test device, the electric arc heater is one of a high-enthalpy laminated electric arc heater or a medium-enthalpy segmented electric arc heater or a low-enthalpy alternating current electric arc heater.
In the electric arc wind tunnel heat-infrared transmission combined test device, the spray pipe is an ultrasonic molded surface spray pipe.
In the arc wind tunnel heat-infrared transmission combined test device, the target generator is an infrared target generator, and an infrared band test target is generated.
In the electric arc wind tunnel heat-infrared transmission combined test device, the optical side window hood is of a hollow cone structure; the cone top of the optical side window hood is axially directed to the outlet of the spray pipe; and the optical side window cap is positioned along the axially offset nozzle axis.
In the electric arc wind tunnel heat-infrared transmission combined test device, an infrared window is arranged on the side wall of the optical side window hood, which is close to the axis of the spray pipe; the optical side window hood is correspondingly provided with a through hole at the side wall opposite to the infrared window.
In the electric arc wind tunnel heat-infrared transmission combined test device, the center of the infrared window is positioned on the axis of the spray pipe; and the horizontal distance between the center of the infrared window and the outlet of the spray pipe is 150-300 mm; the through hole is communicated with one axial end of the light-transmitting cylinder; the target generator, the observation window, the infrared window, the through hole, the light-transmitting cylinder and the thermal infrared imager are sequentially and correspondingly arranged along the axial direction of the light-transmitting cylinder.
In the arc wind tunnel heat-infrared transmission combined test device, the thermal infrared imager adopts a medium-wave thermal imager or a long-wave thermal imager; the wavelength of the medium wave thermal imager is 4-5 μm; the wavelength of the long-wave thermal imager is 10-12 mu m.
In the electric arc wind tunnel heat-infrared transmission combined test device, the light-transmitting cylinder is of a hollow cylindrical structure; the light-transmitting cylinder is of a three-layer structure, and the middle layer is made of stainless steel material; coating black paint on the inner side wall; the outer side wall is made of ceramic tile heat-proof material.
In the electric arc wind tunnel heat-infrared transmission combined test device, the ground refrigeration air source outputs nitrogen to realize the cooling of the inner wall of the infrared window; the nitrogen output speed of the ground refrigeration air source is 10-200 g/s.
Compared with the prior art, the utility model have following advantage:
(1) the utility model provides a test capability of ground examination of a hypersonic aircraft infrared guidance research heat-pneumatic optical infrared transmission combined test, which can simulate reentry heat and hypersonic environment of a hypersonic aircraft, thereby realizing more real ground simulation of the aerodynamic optical effect of the aircraft;
(2) the utility model discloses use high-power electric arc heater simulation hypersonic aircraft's thermal environment, can be the highest equipment operational capability that realizes 50 MW.
Drawings
Fig. 1 is a schematic view of the thermal-infrared transmission combined test device of the present invention.
Detailed Description
The invention will be described in further detail with reference to the following figures and specific embodiments:
the utility model provides an electric arc wind-tunnel heat-infrared transmission combined test device utilizes this test device can carry out infrared terminal guide hood complete machine heat-infrared transmission effect combined test, provides infrared guide transmission operational environment's wind-tunnel ground simulation ability.
As shown in fig. 1, which is a schematic diagram of a thermal-infrared transmission combined test device, it can be seen that the arc wind tunnel thermal-infrared transmission combined test device comprises an arc heater 1, a spray pipe 2, an optical side window head cover 3, a target generator 4, an observation window 5, a light-transmitting cylinder 6, a thermal infrared imager 7, a ground refrigeration air source 8 and a vacuum test chamber 9; wherein, the electric arc heater 1 is horizontally arranged, and the axial inlet end of the spray pipe 2 is butted with the electric arc heater 1; the axial outlet end of the spray pipe 2 extends into the vacuum test chamber 9; the optical side window hood 3 is arranged at the position of the outlet end of the spray pipe 2; the observation window 5 is arranged on the side wall of the vacuum test chamber 9; and the observation window 5 corresponds to the optical side window hood 3 in position; the target generator 4 is arranged at the outer side of the vacuum test chamber 9, and the target generator 4 is arranged corresponding to the observation window 5; the thermal infrared imager 7 is correspondingly arranged outside the vacuum test chamber 9 and is opposite to the target generator 4; the light-transmitting cylinder 6 is arranged between the thermal infrared imager 7 and the optical side window head cover 3; and the ground refrigeration air source 8 is arranged outside the vacuum test chamber 9, so that the optical side window hood 3 is cooled.
The electric arc heater 1 adopts one of a high enthalpy laminated electric arc heater or a medium enthalpy segmented electric arc heater or a low enthalpy alternating current electric arc heater. To reduce copper particles generated during the testing of the arc heater 1.
The spray pipe 2 is a supersonic profile spray pipe. And the inner wall surface of the spray pipe is an axisymmetric profile, so that the outlet airflow is close to parallel flow, and the flow field uniform area is large.
The target generator 4 is an infrared target generator, and realizes the test target for generating infrared broadband.
The optical side window hood 3 is a hollow cone structure; the cone top of the optical side window head cover 3 points to the outlet of the spray pipe 2 along the axial direction; and the optical side window cover 3 is placed along the axial offset nozzle 2 axis.
An infrared window 31 is arranged on the side wall of the optical side window head cover 3 close to the axis of the spray pipe 2; the optical side window head cover 3 is correspondingly provided with a through hole 32 at the side wall opposite to the infrared window 31; the optical side window head cover 3 is made of stainless steel material; the infrared window 31 and the observation window 5 are both made of zinc sulfide materials.
The center of the infrared window 31 is located on the axis of the nozzle 2; and the horizontal distance between the center of the infrared window 31 and the outlet of the spray pipe 2 is 150-300 mm; the through hole 32 is communicated with one axial end of the light-transmitting cylinder 6; the target generator 4, the observation window 5, the infrared window 31, the through hole 32, the light-transmitting cylinder 6 and the thermal infrared imager 7 are sequentially and correspondingly arranged along the axial direction of the light-transmitting cylinder 6.
The thermal infrared imager 7 adopts a medium wave thermal imager or a long wave thermal imager; the wavelength of the medium wave thermal imager is 4-5 μm; the wavelength of the long-wave thermal imager is 10-12 mu m.
The light-transmitting cylinder 6 is a hollow cylindrical structure; the light-transmitting cylinder 6 is of a three-layer structure, and the middle layer is made of stainless steel material; coating black paint on the inner side wall; the outer side wall is made of ceramic tile heat-proof material. The temperature in the light-transmitting cylinder is not violent in the test process.
The ground refrigeration air source 8 outputs nitrogen to realize the cooling of the inner wall of the infrared window 31; continuously providing a certain flow of gas for the optical side window head cover 3, and carrying out air film cooling on the inner wall surface of the zinc sulfide side window at one side of the optical side window head cover 3; the nitrogen output speed of the ground refrigeration air source 8 is 10-200 g/s.
The working process is as follows:
the electric arc heater 1 heats a test medium, generates high-temperature airflow, and expands and accelerates through the spray pipe 2 to establish a ground-simulated aircraft to enter a hot environment again. Meanwhile, the target generator 4 generates a test target, the radiation of the test target enters the test chamber through the observation window 5 and passes through the optical side window head cover 3, the transmission light of the test target is transmitted out from the window at the other side of the optical side window head cover 3 and is acquired by the thermal infrared imager 7 through the light transmitting cylinder 6, and the thermal infrared imager 7 continuously acquires and records the test target image of the target generator 4 before, during and after the test, so that the acquisition of the infrared transmission effect data under pneumatic heating is completed. In the whole test process, the side window of the heating surface of the optical side window head cover 3 is air-cooled by a ground refrigeration air source 8.
The details of the present invention not described in detail in the specification are well known to those skilled in the art.
Claims (10)
1. Electric arc wind tunnel heat-infrared transmission combined test device which characterized in that: the device comprises an electric arc heater (1), a spray pipe (2), an optical side window hood (3), a target generator (4), an observation window (5), a light-transmitting cylinder (6), a thermal infrared imager (7), a ground refrigeration air source (8) and a vacuum test chamber (9); wherein the arc heater (1) is horizontally arranged, and the axial inlet end of the spray pipe (2) is butted with the arc heater (1); the axial outlet end of the spray pipe (2) extends into the vacuum test chamber (9); the optical side window hood (3) is arranged at the position of the outlet end of the spray pipe (2); the observation window (5) is arranged on the side wall of the vacuum test chamber (9); the observation window (5) corresponds to the optical side window hood (3) in position; the target generator (4) is arranged on the outer side of the vacuum test chamber (9), and the target generator (4) is arranged corresponding to the observation window (5); the thermal infrared imager (7) is correspondingly arranged outside the vacuum test chamber (9) and is opposite to the target generator (4); the light-transmitting cylinder (6) is arranged between the thermal infrared imager (7) and the optical side window head cover (3); the ground refrigeration air source (8) is arranged on the outer side of the vacuum test chamber (9) to realize cooling of the optical side window hood (3).
2. The electric arc wind tunnel heat-infrared transmission combined test device according to claim 1, characterized in that: the electric arc heater (1) adopts one of a high-enthalpy laminated electric arc heater or a medium-enthalpy segmented electric arc heater or a low-enthalpy alternating current electric arc heater.
3. The electric arc wind tunnel heat-infrared transmission combined test device according to claim 2, characterized in that: the spray pipe (2) is a supersonic molded surface spray pipe.
4. The electric arc wind tunnel heat-infrared transmission combined test device according to claim 3, characterized in that: the target generator (4) is an infrared target generator and is used for generating an infrared band test target.
5. The electric arc wind tunnel heat-infrared transmission combined test device according to claim 4, characterized in that: the optical side window hood (3) is of a hollow cone structure; the cone top of the optical side window head cover (3) points to the outlet of the spray pipe (2) along the axial direction; and the optical side window hood (3) is arranged along the axial offset spray pipe (2).
6. The electric arc wind tunnel heat-infrared transmission combined test device according to claim 5, characterized in that: an infrared window (31) is arranged on the side wall of the optical side window hood (3) close to the axis of the spray pipe (2); the optical side window head cover (3) is correspondingly provided with a through hole (32) at the side wall opposite to the infrared window (31).
7. The electric arc wind tunnel heat-infrared transmission combined test device according to claim 6, characterized in that: the center of the infrared window (31) is positioned on the axis of the spray pipe (2); and the horizontal distance between the center of the infrared window (31) and the outlet of the spray pipe (2) is 150-300 mm; the through hole (32) is communicated with one axial end of the light-transmitting cylinder (6); the target generator (4), the observation window (5), the infrared window (31), the through hole (32), the light-transmitting cylinder (6) and the thermal infrared imager (7) are sequentially and correspondingly arranged along the axial direction of the light-transmitting cylinder (6).
8. The electric arc wind tunnel heat-infrared transmission combined test device according to claim 7, characterized in that: the thermal infrared imager (7) adopts a medium wave thermal imager or a long wave thermal imager; the wavelength of the medium wave thermal imager is 4-5 μm; the wavelength of the long-wave thermal imager is 10-12 mu m.
9. The electric arc wind tunnel heat-infrared transmission combined test device according to claim 8, characterized in that: the light-transmitting cylinder (6) is of a hollow cylindrical structure; the light-transmitting cylinder (6) is of a three-layer structure, and the middle layer is made of stainless steel; coating black paint on the inner side wall; the outer side wall is a ceramic tile.
10. The electric arc wind tunnel heat-infrared transmission combined test device of claim 9, characterized in that: the ground refrigeration air source (8) outputs nitrogen to realize the cooling of the inner wall of the infrared window (31); the nitrogen output speed of the ground refrigeration air source (8) is 10-200 g/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201920773673.9U CN210071144U (en) | 2019-05-27 | 2019-05-27 | Electric arc wind tunnel heat-infrared transmission combined test device |
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| CN201920773673.9U CN210071144U (en) | 2019-05-27 | 2019-05-27 | Electric arc wind tunnel heat-infrared transmission combined test device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112461883A (en) * | 2020-11-25 | 2021-03-09 | 中国航天空气动力技术研究院 | System and method for simulating aerodynamic thermal test track |
| CN112577694A (en) * | 2020-12-25 | 2021-03-30 | 中国航天空气动力技术研究院 | Infrared pneumatic optical distortion wind tunnel test system |
| CN115327261A (en) * | 2022-07-21 | 2022-11-11 | 哈尔滨工业大学 | Plasma source ablation wave-transparent test vacuum chamber and ablation wave-transparent test device based on cascade arc plasma source |
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2019
- 2019-05-27 CN CN201920773673.9U patent/CN210071144U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112461883A (en) * | 2020-11-25 | 2021-03-09 | 中国航天空气动力技术研究院 | System and method for simulating aerodynamic thermal test track |
| CN112461883B (en) * | 2020-11-25 | 2023-06-20 | 中国航天空气动力技术研究院 | Pneumatic heat test track simulation system and method |
| CN112577694A (en) * | 2020-12-25 | 2021-03-30 | 中国航天空气动力技术研究院 | Infrared pneumatic optical distortion wind tunnel test system |
| CN115327261A (en) * | 2022-07-21 | 2022-11-11 | 哈尔滨工业大学 | Plasma source ablation wave-transparent test vacuum chamber and ablation wave-transparent test device based on cascade arc plasma source |
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