CN103323489B - A kind of infrared heating cage heat flow density scaling method - Google Patents
A kind of infrared heating cage heat flow density scaling method Download PDFInfo
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- CN103323489B CN103323489B CN201310261292.XA CN201310261292A CN103323489B CN 103323489 B CN103323489 B CN 103323489B CN 201310261292 A CN201310261292 A CN 201310261292A CN 103323489 B CN103323489 B CN 103323489B
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Abstract
The invention discloses a kind of infrared heating cage heat flow density scaling method, the method comprises the steps: 1, powers up to infrared heating cage and heating plate, after ready to balance, the thermopair that the medial temperature of setting and all thermopairs of simulating piece is the most close is infrared heating cage temperature-control heat couple; 2, with described temperature-control heat couple, loop cooling control is carried out to infrared heating cage; 3, the electric current of heating plate and the temperature of temperature-control heat couple are set, by different operating mode to infrared heating cage and heating plate heating; 4, the average surface temperature of different operating mode Imitating part actual absorption Orbital heat flux density, heat flow meter medial temperature and simulating piece is obtained; 5, the corresponding relation between the average surface temperature obtaining simulating piece actual absorption Orbital heat flux density and heat flow meter medial temperature, simulating piece.The present invention not only obtains infrared heating cage theory and applies hot-fluid and the actual difference arrived between hot-fluid, also for the determination of vacuum thermal test infrared heating cage simulation Orbital heat flux scheme provides foundation.
Description
Technical field
The present invention relates to technical field of spacecraft space environment simulation, particularly, relate to a kind of infrared heating cage heat flow density scaling method.
Background technology
Spacecraft, before launching, must carry out the vacuum thermal test (comprising heat balance test and thermal vacuum test) of the cold darkness environment of virtual space in space simulator.When spacecraft carries out vacuum thermal test, need to use contactless Orbital heat flux simulation means to carry out space heat flux simulation.Infrared heating cage is a kind of non-contact infrared simulator making radiation source with resistance heated band, when carrying out vacuum thermal test, according to the actual conditions of spacecraft orbit, the thermal environment (the absorption hot-fluid calculated according to the method for orbit averaging) that Simulated Spacecraft experiences at space can be used for, with the high temperature performance of the correctness and examination unit of checking spacecraft thermal design.
In order to verify that can the hot-fluid of infrared heating cage meet the requirement of spacecraft thermal vacuum test, obtaining infrared heating cage theory and applying hot-fluid and the actual difference arrived between hot-fluid, needing the rating test carrying out infrared heating cage hot-fluid validity before official test.
The rating test of infrared heating cage is generally demarcated under vacuum low-temperature environment, and namely vacuum tank vacuum tightness is better than 1.33 × 10
-3pa, ambient temperature is less than 100K.The validity that infrared heating cage is applied to the hot-fluid of product is by demarcation simulating piece surface diverse location sticking heating plates and thermopair with install heat flow meter investigate on infrared heating cage.Mainly obtain demarcating simulating piece actual absorption Orbital heat flux density and temperature control heat flow meter medial temperature, demarcate corresponding relation between simulating piece medial temperature, obtain infrared heating cage theory and apply hot-fluid and the actual difference arrived between hot-fluid, for the determination of vacuum thermal test infrared heating cage simulation Orbital heat flux scheme provides foundation.
Summary of the invention
For defect of the prior art, the object of this invention is to provide a kind of infrared heating cage heat flow density scaling method.
For solving the problems of the technologies described above, the invention provides a kind of infrared heating cage heat flow density scaling method applying infrared heating cage heat flow density caliberating device, it is characterized in that, comprise the steps:
Step 1: power up to infrared heating cage and heating plate, after ready to balance, the thermopair that the medial temperature of setting and all thermopairs of simulating piece is the most close is infrared heating cage temperature-control heat couple;
Step 2: loop cooling control is carried out to infrared heating cage with the temperature-control heat couple described in step 1;
Step 3: arrange the electric current of heating plate and the temperature of temperature-control heat couple, by different operating mode to infrared heating cage and heating plate heating;
Step 4: the average surface temperature obtaining different operating mode Imitating part actual absorption Orbital heat flux density, heat flow meter medial temperature and simulating piece;
Step 5: the corresponding relation between the average surface temperature obtaining simulating piece actual absorption Orbital heat flux density and heat flow meter medial temperature, simulating piece.
Preferably, also comprise the response by the electric current of infrared heating cage under record different heating power, the response of heat flow meter and simulating piece in described step 4, obtain infrared heating cage theory and apply hot-fluid and the actual difference arrived between hot-fluid
The present invention not only obtains infrared heating cage theory and applies hot-fluid and the actual difference arrived between hot-fluid, also for the determination of vacuum thermal test infrared heating cage simulation Orbital heat flux scheme provides foundation, improves the reliability of test findings.
Accompanying drawing explanation
Fig. 1 is the infrared heating cage heat flow density caliberating device schematic diagram applied in the present invention;
Fig. 2 is the process flow diagram of infrared heating cage heat flow density scaling method in the present invention.
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.
Embodiment
As shown in Figure 1, under vacuum low-temperature environment, (process vacuumizing, lead to liquid nitrogen need be experienced) and rating test is carried out to infrared heating cage.Infrared heating cage heat flow density caliberating device comprises simulating piece 4, infrared heating cage 1 and heat flow meter 2.The material of described simulating piece 4 is consistent with profile and product to be calibrated, the arranged outside heating plate 5 of simulating piece 4, and evenly pastes thermopair 6, then uses thermofin 7 coated; At the thermal control coating 3 that the spraying of the inner side of simulating piece 4 is consistent with product surface to be calibrated; Infrared heating cage 1 is set at the 150mm place, inner side of range simulation part 4, and on infrared heating cage 1, heat flow meter 2 is installed.
As shown in Figure 2, the step of infrared heating cage heat flow density scaling method is:
1, power up to infrared heating cage and heating plate, after ready to balance, the thermopair that the medial temperature of setting and all thermopairs of simulating piece is the most close is infrared heating cage temperature-control heat couple;
2, with the temperature-control heat couple described in step 1, loop cooling control is carried out to infrared heating cage;
3, the electric current of heating plate and the temperature of temperature-control heat couple are set, by different operating mode to infrared heating cage and heating plate heating;
4, the average surface temperature of different operating mode Imitating part actual absorption Orbital heat flux density, heat flow meter medial temperature and simulating piece is obtained;
5, the corresponding relation between the average surface temperature obtaining simulating piece actual absorption Orbital heat flux density and heat flow meter medial temperature, simulating piece.
It should be noted that in described step 4 response also comprised by the electric current of infrared heating cage under record different heating power, the response of heat flow meter and simulating piece, obtain infrared heating cage theory and apply hot-fluid and the actual difference arrived between hot-fluid
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from principle of the present invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (2)
1. an infrared heating cage heat flow density scaling method, is characterized in that, comprises the steps:
Step 1: power up to infrared heating cage and heating plate, after ready to balance, the thermopair that the medial temperature of setting and all thermopairs of simulating piece is the most close is infrared heating cage temperature-control heat couple;
Step 2: loop cooling control is carried out to infrared heating cage with the temperature-control heat couple described in step 1;
Step 3: arrange the electric current of heating plate and the temperature of temperature-control heat couple, by different operating mode to infrared heating cage and heating plate heating;
Step 4: the average surface temperature obtaining different operating mode Imitating part actual absorption Orbital heat flux density, heat flow meter medial temperature and simulating piece;
Step 5: the corresponding relation between the average surface temperature obtaining simulating piece actual absorption Orbital heat flux density and heat flow meter medial temperature, simulating piece.
2. infrared heating cage heat flow density scaling method according to claim 1, it is characterized in that, also comprise the response by the electric current of infrared heating cage under record different heating power, the response of heat flow meter and simulating piece in described step 3, obtain infrared heating cage theory and apply hot-fluid and the actual difference arrived between hot-fluid.
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104048991B (en) * | 2014-06-16 | 2016-07-13 | 中国飞机强度研究所 | A kind of radiant heater heat flow density transmission method |
| 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 |
| CN104535605A (en) * | 2014-11-27 | 2015-04-22 | 上海卫星装备研究所 | Heat flux density calibration system for vacuum wave-absorbing type external heat flux analog device |
| CN105203591B (en) * | 2015-09-24 | 2018-09-18 | 中国航天空气动力技术研究院 | The measurement method of spacecraft testing model hot wall heat flow density |
| CN109018456B (en) * | 2018-06-28 | 2020-07-14 | 上海卫星工程研究所 | Thermal vacuum test external heat flow simulation method of high-orbit remote sensing satellite platform |
| EP3627160A1 (en) | 2018-09-18 | 2020-03-25 | Rohde & Schwarz GmbH & Co. KG | Method and measurement system for over-the-air measurements |
| CN110469760B (en) * | 2019-08-21 | 2021-06-22 | 北京卫星环境工程研究所 | Adjustable angle heat flow meter installing support |
| CN111177894B (en) * | 2019-12-12 | 2023-06-13 | 上海卫星工程研究所 | Infrared cage heating power correction method based on support vector machine model |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201293721Y (en) * | 2008-11-17 | 2009-08-19 | 北京卫星环境工程研究所 | Infrared heating cage for spacecraft vacuum heat test |
| CN102092487A (en) * | 2009-12-11 | 2011-06-15 | 上海卫星工程研究所 | Heat flow compensation method for ground simulation test on infrared heating cage of spacecraft |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201293721Y (en) * | 2008-11-17 | 2009-08-19 | 北京卫星环境工程研究所 | Infrared heating cage for spacecraft vacuum heat test |
| CN102092487A (en) * | 2009-12-11 | 2011-06-15 | 上海卫星工程研究所 | Heat flow compensation method for ground simulation test on infrared heating cage of spacecraft |
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