CN104535605A - Heat flux density calibration system for vacuum wave-absorbing type external heat flux analog device - Google Patents
Heat flux density calibration system for vacuum wave-absorbing type external heat flux analog device Download PDFInfo
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- CN104535605A CN104535605A CN201410707427.5A CN201410707427A CN104535605A CN 104535605 A CN104535605 A CN 104535605A CN 201410707427 A CN201410707427 A CN 201410707427A CN 104535605 A CN104535605 A CN 104535605A
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Abstract
The invention provides a heat flux density calibration system for a vacuum wave-absorbing type external heat flux analog device, wherein the heat flux density calibration system includes a wave-absorbing type external heat flux analog device, a calibration analog plate, a metal baffle plate, a parking trolley, a vacuum tank, an electric heater, a temperature sensor, a thermal control coating layer, an adiabatic type heat flux meter and a heat insulation material; a perpendicular distance and a horizontal distance of the wave-absorbing type external heat flux analog device to the calibration analog plate are both 460 mm; the wave-absorbing type external heat flux analog device is fixed on the parking trolley through bolts; the metal baffle plate is fixed on the parking trolley by bolts; one upward side of the calibration analog plate is successively provided with the electric heater, the temperature sensor, the thermal control coating layer and the adiabatic type heat flux meter, the back face of the calibration analog plate is covered with the heat insulation material; the parking trolley is pushed into the vacuum tank along a guide rail. The problem of heat flux analog precision of the wave-absorbing type external heat flux analog device is solved, heat flux density distribution characteristics under a vacuum hot environment are acquired, and the test precision is improved.
Description
Technical field
The present invention relates to the lower outside heat flux simulation technical field of vacuum environment, be specifically related to a kind of vacuum and inhale wave mode Orbital heat flux analogue means heat flow density calibration system.
Background technology
In order to verify the correctness of aircraft thermal control subsystem thermal design, obtain aircraft temperature profile data, revise CALCULATION OF THERMAL model, need to carry out the heat balance test of product first sample in thermal control subsystem first sample development process, testing requirements carries out accurate simulation to the Orbital heat flux situation that aircraft absorbs in-orbit.Because the frock in vacuum tank, infrared heating cage etc. are all metal materials, metal material has good reflecting effect to microwave, aircraft is launched microwave in vacuum tank directly, and a large amount of microwave reflection must be had to return aircraft surface, causes aircraft section product normally to work.Therefore new demand is proposed to vacuum thermal test technology, need a kind of novel Orbital heat flux analogue means, the microwave of vehicle launch can be absorbed, Orbital heat flux accurate analog can be realized again.The vacuum that have developed of innovation inhales wave mode Orbital heat flux analogue means, solves the vacuum thermal test bottleneck under aircraft Microwave emission state.
Whether the heat flux simulation of inhaling wave mode Orbital heat flux analogue means for checking meets aircraft vacuum thermal test demand, obtain the difference of inhaling wave mode Orbital heat flux analogue means actual absorption hot-fluid and theoretical absorption hot-fluid, and actual absorption hot-fluid, fit correlation between heat flow meter temperature and product surface temperature three, need the rating test carrying out inhaling wave mode Orbital heat flux analogue means heat flux simulation validity before vacuum thermal test, react operation on orbit state as far as possible really, improve vacuum thermal test reliability.
Summary of the invention
For defect of the prior art, the object of this invention is to provide a kind of vacuum and inhale wave mode Orbital heat flux analogue means heat flow density calibration system, it obtains the fit correlation inhaled between wave mode Orbital heat flux analogue means absorption heat flow density, heat flow meter temperature, product surface temperature three, reduce test error, improve heat flux simulation precision, reproduce duty in-orbit as far as possible really, improve test reliability.
According to an aspect of the present invention, a kind of vacuum is provided to inhale wave mode Orbital heat flux analogue means heat flow density calibration system, it is characterized in that, comprise suction wave mode Orbital heat flux analogue means, demarcate analog board, metal baffle, park dolly, vacuum tank, electric heater, temperature sensor, thermal control coating, heat insulation-type heat flow meter and heat-barrier material; Vertical range, the horizontal range of described suction wave mode Orbital heat flux analogue means and described demarcation analog board are 460mm; Park on dolly described in described suction wave mode Orbital heat flux analogue means is fixed by screws in; Park described in described metal baffle is fixed by screws on dolly; Described demarcation analog board upward side is provided with electric heater, temperature sensor, thermal control coating and heat insulation-type heat flow meter successively, the coated described heat-barrier material of described demarcation simulation back; Described dolly of parking pushes in described vacuum tank along guide rail.
Preferably, described suction wave mode Orbital heat flux analogue means comprises structuring and inhales ripple assembly, temperature-controlling system and fixed installation version, inhaling wave mode Orbital heat flux analogue means adopts temperature-controlling system to carry out active thermal compensation, heat is passed to described structuring by described mounting plate and inhales ripple assembly, finally apply hot-fluid in the mode of radiation heat transfer to described demarcation analog board surface.
Preferably, be provided with heat insulation-type heat flow meter between described suction wave mode Orbital heat flux analogue means and described demarcation analog board, described heat insulation-type heat flow meter realizes the accurate measurement of heat flow density.
Preferably, described electric heater carries out thermal compensation to described demarcation analog board; Simulation plate temperature is demarcated described in described temperature sensor Real-Time Monitoring; The coated described heat-barrier material of described demarcation simulation back; Described thermal control coating is consistent with actual products surface state, realizes the transmission of heat between described demarcation analog board and described suction wave mode Orbital heat flux analogue means.
Preferably, described heat insulation-type heat flow meter is made up of measurement components, compensation assembly and radiation shield.
Preferably, described suction wave mode Orbital heat flux analogue means and described demarcation analog board are formed an enclosure space by described metal baffle.
Preferably, described structuring suction ripple assembly adopts resistant to elevated temperatures carbofrax material to make.
Preferably, described temperature-controlling system is by the parallel connection of thin-film electro heating plate or be composed in series, and by copper-constantan thermocouple as temperature sensor, realizes the accurate temperature controlling of temperature-controlling system.
Preferably, described demarcation analog board and metal baffle all adopt the aluminum alloy materials of high-termal conductivity to make; Described dolly of parking adopts high-strength stainless steel material to make; Described temperature sensor adopts thermopair.
Preferably, described heat-barrier material adopts multilayer insulation assembly.
Compared with prior art, the present invention has following beneficial effect:
(1) break through the restriction of the conventional Orbital heat flux analogy methods such as existing infrared heating cage, infrared lamp arrays, propose novel Orbital heat flux analogy method, namely inhale wave mode Orbital heat flux analogue means;
(2) improve suction wave mode Orbital heat flux analogue means heat flux simulation precision, reduce test error to the impact of aircraft heat balance test, react state of temperature in-orbit more really;
(3) obtain the corresponding relation inhaled between wave mode Orbital heat flux analogue means absorption heat flow density and heat flow meter temperature, revise thermal design mathematical model.
Accompanying drawing explanation
By reading the detailed description done non-limiting example with reference to the following drawings, other features, objects and advantages of the present invention will become more obvious:
Fig. 1 is the front view of the vacuum suction wave mode Orbital heat flux analogue means heat flow density calibration system of the embodiment of the present invention.
Fig. 2 is that the demarcation simulating piece of the vacuum suction wave mode Orbital heat flux analogue means heat flow density calibration system of the embodiment of the present invention arranges schematic diagram.
In figure: 1 being metal baffle for inhaling wave mode Orbital heat flux analogue means, 2 for demarcating analog board, 3,4 being vacuum tank for parking dolly, 5,6 be electric heater, 7 be temperature sensor, 8 be thermal control coating, 9 be heat insulation-type heat flow meter, 10 be heat-barrier material, 11 to inhale ripple assembly, 12 for structuring be temperature-controlling system, 13 be mounting plate.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.Following examples will contribute to those skilled in the art and understand the present invention further, but not limit the present invention in any form.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, some distortion and improvement can also be made.These all belong to protection scope of the present invention.
See Fig. 1, the vacuum of the embodiment of the present invention is inhaled wave mode Orbital heat flux analogue means heat flow density calibration system and is comprised suction wave mode Orbital heat flux analogue means 1, demarcates analog board 2, metal baffle 3, parks dolly 4, vacuum tank 5, electric heater 6, temperature sensor 7, thermal control coating 8, heat insulation-type heat flow meter 9 and heat-barrier material 10; Vertical range, the horizontal range of described suction wave mode Orbital heat flux analogue means 1 and described demarcation analog board 2 are 460mm; Park on dolly 4 described in described suction wave mode Orbital heat flux analogue means 1 is fixed by screws in; Park described in described metal baffle 3 is fixed by screws on dolly 4; Described demarcation analog board 2 upward side is provided with electric heater 6, temperature sensor 7, thermal control coating 8 and heat insulation-type heat flow meter 9 successively, the coated described heat-barrier material 10 in described demarcation analog board 2 back side; Described dolly 4 of parking pushes in described vacuum tank 5 along guide rail.
Particularly, inhale wave mode Orbital heat flux analogue means 1 and comprise structuring suction ripple assembly 11, temperature-controlling system 12 and fixed installation version 13, inhaling wave mode Orbital heat flux analogue means 1 adopts temperature-controlling system 12 to carry out active thermal compensation, heat is passed to described structuring by described mounting plate 13 and inhales ripple assembly 11, apply hot-fluid in the mode of radiation heat transfer to described demarcation analog board 2 surface.
Particularly, be provided with heat insulation-type heat flow meter 9 between described suction wave mode Orbital heat flux analogue means 1 and described demarcation analog board 2, described heat insulation-type heat flow meter 9 realizes the accurate measurement of heat flow density.
See Fig. 2, described electric heater 6 carries out thermal compensation to described demarcation analog board 2; Analog board 2 temperature is demarcated described in described temperature sensor 7 Real-Time Monitoring; The coated described heat-barrier material 10 in described demarcation analog board 2 back side, leaks heat affecting under reducing thermal vacuum environment; Described thermal control coating 8 is consistent with actual products surface state, realizes the transmission of heat between described demarcation analog board 2 and described suction wave mode Orbital heat flux analogue means 1.
Particularly, described heat insulation-type heat flow meter 9 is made up of measurement components, compensation assembly and radiation shield, not by surrounding environment influence under thermal vacuum environment, without leaking heat.
Particularly, described suction wave mode Orbital heat flux analogue means 1 and described demarcation analog board 2 are formed an enclosure space by described metal baffle 3, are consistent with whole star vacuum thermal test state, and its object is revealed for preventing SAR antenna microwave.
Particularly, described structuring suction ripple assembly 11 adopts resistant to elevated temperatures carbofrax material to make.
Particularly, described temperature-controlling system 12 is by the parallel connection of thin-film electro heating plate or be composed in series, and by copper-constantan thermocouple as temperature sensor, realizes the accurate temperature controlling of temperature-controlling system.
Particularly, described demarcation analog board 2 and metal baffle 3 all adopt the aluminum alloy materials of high-termal conductivity to make; Particularly, parking dolly 4 described in adopts high-strength stainless steel material to make; Particularly, described temperature sensor 7 adopts thermopair.Particularly, described heat-barrier material 10 adopts multilayer insulation assembly, leaks heat affecting under reducing thermal vacuum environment.
The course of work of the present invention is: be first fixed on by demarcation analog board during use and park on dolly, regulate the height and stickup heat flow meter of demarcating analog board, being arranged on by suction wave mode Orbital heat flux analogue means parks on dolly, the space-closed that suction wave mode Orbital heat flux analogue means forms with demarcation analog board by metal baffle is installed, finally will park dolly to push in vacuum tank along guide rail, and set up vacuum cryogenic environment, according to vacuum thermal test working condition requirement, send instruction by power control system to control electric heater and inhale wave mode Orbital heat flux analogue means output current, Real-Time Monitoring demarcates simulation plate temperature situation of change, if demarcate simulation plate temperature to depart from desired value, then constantly wave mode Orbital heat flux analogue means output current is inhaled in adjustment, but electric heater output current remains unchanged always, guarantee thermal compensation is constant, until it is consistent with target temperature value to demarcate simulation plate temperature, then terminate this operating mode, be switched to next operating mode, repeat above-mentioned steps, until complete all working condition requirements, finally obtain the difference of actual absorption heat flow density and theoretical absorption heat flow density, and obtain actual absorption heat flow density, heat flow meter temperature and the fit correlation demarcated between simulation plate temperature three, improve heat flux simulation precision.The present invention breaks through the restriction of the conventional Orbital heat flux analogy methods such as infrared heating cage, the novel Orbital heat flux analogue means of innovative design, namely wave mode Orbital heat flux analogue means is inhaled, the invention solves and inhale wave mode Orbital heat flux analogue means heat flux simulation precision problem, obtain heat flux distribution characteristic under thermal vacuum environment, heat examination can be carried out with more real operation on orbit state to SAR antenna, improve test accuracy.
Above specific embodiments of the invention are described.It is to be appreciated that the present invention is not limited to above-mentioned particular implementation, those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect flesh and blood of the present invention.
Claims (10)
1. a vacuum inhales wave mode Orbital heat flux analogue means heat flow density calibration system, it is characterized in that, comprise suction wave mode Orbital heat flux analogue means, demarcate analog board, metal baffle, park dolly, vacuum tank, electric heater, temperature sensor, thermal control coating, heat insulation-type heat flow meter and heat-barrier material; Vertical range, the horizontal range of described suction wave mode Orbital heat flux analogue means and described demarcation analog board are 460mm; Park on dolly described in described suction wave mode Orbital heat flux analogue means is fixed by screws in; Park described in described metal baffle is fixed by screws on dolly; Described demarcation analog board upward side is provided with electric heater, temperature sensor, thermal control coating and heat insulation-type heat flow meter successively, the coated described heat-barrier material of described demarcation simulation back; Described dolly of parking pushes in described vacuum tank along guide rail.
2. vacuum according to claim 1 inhales wave mode Orbital heat flux analogue means heat flow density calibration system, it is characterized in that, described suction wave mode Orbital heat flux analogue means comprises structuring and inhales ripple assembly, temperature-controlling system and fixed installation version, inhaling wave mode Orbital heat flux analogue means adopts temperature-controlling system to carry out active thermal compensation, heat is passed to described structuring by described mounting plate and inhales ripple assembly, finally apply hot-fluid in the mode of radiation heat transfer to described demarcation analog board surface.
3. vacuum according to claim 1 inhales wave mode Orbital heat flux analogue means heat flow density calibration system, it is characterized in that, be provided with heat insulation-type heat flow meter between described suction wave mode Orbital heat flux analogue means and described demarcation analog board, described heat insulation-type heat flow meter realizes the accurate measurement of heat flow density.
4. vacuum according to claim 1 inhales wave mode Orbital heat flux analogue means heat flow density calibration system, and it is characterized in that, described electric heater carries out thermal compensation to described demarcation analog board; Simulation plate temperature is demarcated described in described temperature sensor Real-Time Monitoring; The coated described heat-barrier material of described demarcation simulation back; Described thermal control coating is consistent with actual products surface state, realizes the transmission of heat between described demarcation analog board and described suction wave mode Orbital heat flux analogue means.
5. vacuum according to claim 1 inhales wave mode Orbital heat flux analogue means heat flow density calibration system, and it is characterized in that, described heat insulation-type heat flow meter is made up of measurement components, compensation assembly and radiation shield.
6. vacuum according to claim 1 inhales wave mode Orbital heat flux analogue means heat flow density calibration system, and it is characterized in that, described suction wave mode Orbital heat flux analogue means and described demarcation analog board are formed an enclosure space by described metal baffle.
7. vacuum according to claim 1 inhales wave mode Orbital heat flux analogue means heat flow density calibration system, and it is characterized in that, described structuring is inhaled ripple assembly and adopted resistant to elevated temperatures carbofrax material to make.
8. vacuum according to claim 1 inhales wave mode Orbital heat flux analogue means heat flow density calibration system, it is characterized in that, described temperature-controlling system is by the parallel connection of thin-film electro heating plate or be composed in series, and by copper-constantan thermocouple as temperature sensor, realizes the accurate temperature controlling of temperature-controlling system.
9. vacuum according to claim 1 inhales wave mode Orbital heat flux analogue means heat flow density calibration system, and it is characterized in that, described demarcation analog board and metal baffle all adopt the aluminum alloy materials of high-termal conductivity to make; Described dolly of parking adopts high-strength stainless steel material to make; Described temperature sensor adopts thermopair.
10. vacuum according to claim 1 inhales wave mode Orbital heat flux analogue means heat flow density calibration system, and it is characterized in that, described heat-barrier material adopts multilayer insulation assembly.
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| CN104597075A (en) * | 2014-11-27 | 2015-05-06 | 上海卫星装备研究所 | Heat flux simulation calibration system and calibration method for vacuum wave-absorbing type external heat flux simulation device |
| CN106081174A (en) * | 2016-07-26 | 2016-11-09 | 上海卫星装备研究所 | A kind of Orbital heat flux analog and hot-fluid control method thereof |
| CN106558262A (en) * | 2015-09-24 | 2017-04-05 | 北京卫星环境工程研究所 | Suction wave apparatus with high temperature-low temperature analog capability |
| CN106950433A (en) * | 2017-02-24 | 2017-07-14 | 北京航天长征飞行器研究所 | A kind of low electromagnetic scattering background environment implementation method for adapting to condition of high vacuum degree |
| CN109781309A (en) * | 2018-12-26 | 2019-05-21 | 西安交通大学 | A kind of high-accuracy calibration device and method of film-type heat-flow meter |
| CN110879128A (en) * | 2019-11-22 | 2020-03-13 | 北京空天技术研究所 | Test model and method for obtaining front edge heat flux density |
| CN111071501A (en) * | 2019-12-31 | 2020-04-28 | 中国科学院力学研究所 | Modal test structure temperature compensator under vacuum environment |
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| CN104597075A (en) * | 2014-11-27 | 2015-05-06 | 上海卫星装备研究所 | Heat flux simulation calibration system and calibration method for vacuum wave-absorbing type external heat flux simulation device |
| CN104597075B (en) * | 2014-11-27 | 2017-11-24 | 上海卫星装备研究所 | Vacuum inhales wave mode Orbital heat flux analogue means heat flux simulation calibration system and scaling method |
| CN106558262A (en) * | 2015-09-24 | 2017-04-05 | 北京卫星环境工程研究所 | Suction wave apparatus with high temperature-low temperature analog capability |
| CN106081174A (en) * | 2016-07-26 | 2016-11-09 | 上海卫星装备研究所 | A kind of Orbital heat flux analog and hot-fluid control method thereof |
| CN106081174B (en) * | 2016-07-26 | 2018-06-26 | 上海卫星装备研究所 | A kind of Orbital heat flux simulator and its hot-fluid control method |
| CN106950433A (en) * | 2017-02-24 | 2017-07-14 | 北京航天长征飞行器研究所 | A kind of low electromagnetic scattering background environment implementation method for adapting to condition of high vacuum degree |
| CN106950433B (en) * | 2017-02-24 | 2019-05-24 | 北京航天长征飞行器研究所 | A kind of low electromagnetic scattering background environment implementation method adapting to condition of high vacuum degree |
| CN109781309A (en) * | 2018-12-26 | 2019-05-21 | 西安交通大学 | A kind of high-accuracy calibration device and method of film-type heat-flow meter |
| CN109781309B (en) * | 2018-12-26 | 2020-11-10 | 西安交通大学 | High-precision calibration device and method for film type heat flow meter |
| CN110879128A (en) * | 2019-11-22 | 2020-03-13 | 北京空天技术研究所 | Test model and method for obtaining front edge heat flux density |
| CN111071501A (en) * | 2019-12-31 | 2020-04-28 | 中国科学院力学研究所 | Modal test structure temperature compensator under vacuum environment |
| CN111071501B (en) * | 2019-12-31 | 2021-04-20 | 中国科学院力学研究所 | Modal test structure temperature compensator under vacuum environment |
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Application publication date: 20150422 |