CN102156304B - Small-sized comprehensive simulation system of lunar environment - Google Patents
Small-sized comprehensive simulation system of lunar environment Download PDFInfo
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- CN102156304B CN102156304B CN 201010624600 CN201010624600A CN102156304B CN 102156304 B CN102156304 B CN 102156304B CN 201010624600 CN201010624600 CN 201010624600 CN 201010624600 A CN201010624600 A CN 201010624600A CN 102156304 B CN102156304 B CN 102156304B
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Abstract
The invention discloses a small-sized comprehensive simulation system of lunar environment, which mainly comprises a vacuum system, a heat circulating system, a lunar dust simulating system, a radiation environment simulating system and a monitoring system. By adopting the vacuum system, the problem that a vacuum pump is damaged by a lunar dust simulated article in the vacuum-pumping and vacuum-keeping process is solved and the service life of the vacuum system is prolonged; and by adopting the lunar dust simulation system, the simulation problem of a lunar dust environment on a lunar surface is solved. The system integrates simulation abilities of multiple environment factors like high and low temperature circulation, lunar dust, vacuum ultraviolet, electronic radiation and the like in one vacuum chamber, and can be used for carrying out a simulation test on a single factor and comprehensive simulation test on the multiple factors. By using the invention, comprehensiveness and reliability of a lunar environment simulation test are increased and efficiency of a space environment simulation test also can be improved.
Description
Technical field
The present invention relates to a kind of lunar environment simulation experiment system, belong to field tests.
Background technology
The moon is apart from the earth 3.8 * 10
5Km, its orbital environment and earth orbital environment have very large difference.Lunar orbit solar radiation constant is 1399W/m
2, (pressure is lower than 10 because moonscape does not almost have atmosphere
-10Pa), so the moonscape day and night temperature is very large, daytime, temperature was 403K～423K, and the shadow region that the sun can not shine and the Lunar surface temperature during night are 93K～113K.The moonscape maximum temperature difference is 330K.Moon polar-orbiting satellite solar energy sailboard temperature is 180K～360K
[1,2]Lunar orbiter also must stand the impact of the environmental factors such as the radiation environments such as electronics, ultraviolet, proton and lunar dust at moonscape.The lunar environment simulation test that present China carries out on ground is the method for single factors simulation substantially.
The subject matter of single factors analog detection method is:
1. the result of single environment factorial experiments is not enough to reflect the effect situation of moon complex environment factor, and the result of its simple superposition can not reflect the effect of combined action equally, i.e. single environment test can not replace combined environment test;
2. measuring accuracy is not high, and same sample can impact test result need to be exposed to the surface air environment in varying environment simulation test transfer process in;
3. test efficiency is low, and each sample all needed through multiple analog test, waste lot of experiments time.
Summary of the invention
The object of the invention provides a kind of efficient, comprehensive lunar environment simulated testing system.
A kind of small-sized comprehensive simulation system of lunar environment of the present invention comprises vacuum system, heat circulating system, lunar dust simulation system, radiation environment simulation system, supervisory system and sample stage.Wherein vacuum system comprises vacuum tank, mechanical pump, molecular pump, vacuum system protective device, sealing pipeline and worktable; Heat circulating system comprises that quartz iodine tungsten lamp and vacuum liquid nitrogen refrigerating system form, and wherein, the vacuum liquid nitrogen refrigerating system comprises refrigeration unit and cold screen; The lunar dust simulation system comprises lunar dust analogies, simulation table and hoisting mechanism; The radiation environment simulation system comprises electron gun and deuterium lamp; Supervisory system is by radiation monitor, temperature sensor, vacuum meter and electronic balance; Peripherals is: power supply and switch board.The vacuum system protective device comprises 1, the baffle plate more than 2 or 2, and 1, the aperture plate more than 2 or 2, in the sealing pipeline of the interface between sealing pipeline and vacuum tank, take vacuum tank direction one end as the beginning, be placed with successively baffle plate and aperture plate, this part consists of the vacuum system protective device jointly;
the annexation of native system is: vacuum tank is placed on worktable, be connected with mechanical pump through valve I by one road sealing pipeline, be connected with molecular pump through valve II by another road sealing pipeline, wherein, mechanical pump and molecular pump form the unit of bleeding in vacuum system, quartz iodine tungsten lamp, cold screen, lunar dust simulation system, electron gun, deuterium lamp and radiation monitor all are placed in the vacuum tank inside of column type, quartz iodine tungsten lamp is suspended on the inner top of vacuum tank one end, cold screen is positioned at the two ends, left and right of vacuum tank, further, as required, cold screen can also be placed at the two ends up and down in vacuum tank, or simultaneously in four ends placements up and down, the lunar dust simulation system is positioned at the bottom of vacuum tank, wherein, lunar dust analogies and hoisting mechanism in the lunar dust simulation system are positioned at simulation table, and simulation table is placed at the bottom of lunar dust simulation system, the lunar dust analogies are buried hoisting mechanism, and cover plate is covered on simulation table, electron gun, deuterium lamp and radiation monitor all are placed in the top of the vacuum tank other end, sample stage is positioned at the lunar dust simulation system top of vacuum tank bottom, radiation monitor and temperature sensor are close to sample stage outside placement, vacuum meter is positioned at the top of vacuum tank inside, the optional position that does not affect the components and parts on other tops gets final product, electronic balance is positioned at the lunar dust simulation system top of vacuum tank bottom, and with the horizontal parallel position of sample stage, quartz iodine tungsten lamp, the lunar dust simulation system, electron gun is connected with power supply with deuterium lamp, cold screen is connected with the refrigeration unit of the vacuum liquid nitrogen refrigerating system that is placed in the vacuum tank periphery, all parts in supervisory system is connected with vacuum tank switch board outward, the vacuum suction unit is connected with switch board with power-supply system, complete collection and the storage of various measuring-signals by switch board,
This test macro workflow is:
The first step checks whether each system works situation is normal; Normally, connect second step;
Second step, test specimen are laid and vacuum; A places and the check test sample, and b is placed in sample on testing table, and c checks whether lunar dust simulation table cover plate is built, and d shuts the vacuum tank hatch door, and e opens the mechanical pump power supply, opens valve I, treats that vacuum tightness reaches 10
-2Pa closes mechanical pump and valve I; F opens molecular pump power source, opens valve II, treats that vacuum tightness reaches 10
-4During Pa, begin to carry out the 3rd step simulation link;
In the 4th step, in simulation process, as the case may be, determine the course of work;
Situation one: when needs simulation lunar environment, at first open heat circulating system, when temperature reaches design temperature, open the lunar dust simulation system, namely open the simulation table cover plate, then open the radiation environment simulation system, afterwards, carry out the test of following listed situation, and Real-time Collection simulated environmental parameters and all kinds of test figure and be transferred to switch board by signal wire; Wherein this environment is divided into two types:
Hoisting mechanism in the lunar dust simulation system starts, the lunar dust environment that forms when the air-flow that causes when analog prober logs in or detector motion, simultaneously, radiation environment simulation system electron gun and deuterium lamp accumulate to regulate electron irradiation and the ultraviolet radiation environment of simulation moonscape according to setting or raw data;
Hoisting mechanism in the lunar dust simulation system does not start, after analog prober logs in or the lunar dust environment of detector when static, simultaneously, radiation environment simulation system electron gun and deuterium lamp accumulate to regulate electron irradiation and the ultraviolet radiation environment of simulation moonscape according to setting or raw data;
Situation two: when all kinds of orbital environment of needs simulation, according to needed environmental factor, can select to open heat circulating system, simulate the alternating hot and cold environment, or electron gun or the deuterium lamp selecting to open in the radiation environment simulation system come simulation electronic radiation environment or ultraviolet radiation environment;
The 5th step, after off-test, preserve test figure, close various kinds of equipment, open vacuum tank, take out test specimen.
Advantage of the present invention is:
1. integrated a plurality of environmental factor analog capabilities such as high low-temperature circulating, lunar dust, vacuum ultraviolet, electron irradiation in a vacuum chamber, can carry out simulation test to certain single factors wherein, also can carry out the comprehensive simulation test of a plurality of factors, solve the problem of lunar environment Experimental Simulating Methods, improved precision and the test efficiency of simulation test data;
2. be provided with vacuum protector, solved vacuumize with the vacuum keep-process in the lunar dust analogies damage the problem of vacuum pump, the serviceable life of having improved vacuum system;
3. the lunar dust simulation system has solved the problem of modelling of moonscape lunar dust environment;
In a word, the present invention has improved test figure precision and test efficiency, can carry out the lunar environment comprehensive simulation test.
Description of drawings
A kind of each subsystem schematic diagram of small-sized lunar environment comprehensive simulation of Fig. 1 (a)-the present invention
Fig. 1 (b)-a kind of small-sized comprehensive simulation system of lunar environment major part of the present invention schematic diagram
Fig. 2-vacuum pump protective device schematic diagram of the present invention
Fig. 3-operating process schematic diagram of the present invention
In figure: 1-vacuum system, 2-heat circulating system, 3-lunar dust simulation system, 4-radiation environment simulation system, 5-supervisory system, 6-sample stage, 7-vacuum tank, 8-mechanical pump, 9-molecular pump, 10-vacuum system protective device, 11-sealing pipeline, 12-worktable, 13-quartz iodine tungsten lamp, 14-vacuum liquid nitrogen refrigerating system, 15-refrigeration unit, the cold screen of 16-; 17-lunar dust analogies, 18-simulation table, 19-hoisting mechanism, 20-electron gun, 21-deuterium lamp; 22-radiation monitor, 23-temperature sensor, 24-vacuum meter, 25-electronic balance; 26-power supply, 27-switch board.28-baffle plate I, 29-baffle plate II, 30-aperture plate I, 31-aperture plate II;
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
A kind of small-sized comprehensive simulation system of lunar environment of the present invention comprises vacuum system, heat circulating system, lunar dust simulation system, radiation environment simulation system, supervisory system and sample stage.Wherein vacuum system comprises vacuum tank, mechanical pump, molecular pump, vacuum system protective device, sealing pipeline and worktable; Heat circulating system comprises that quartz iodine tungsten lamp and vacuum liquid nitrogen refrigerating system form, and wherein, the vacuum liquid nitrogen refrigerating system comprises refrigeration unit and cold screen; The lunar dust simulation system comprises lunar dust analogies, simulation table and hoisting mechanism; The radiation environment simulation system comprises electron gun and deuterium lamp; Supervisory system is by radiation monitor, temperature sensor, vacuum meter and electronic balance; Peripherals is: power supply and switch board.The vacuum system protective device comprises 2 baffle plate I, II, and 2 aperture plate I, II, in the sealing pipeline of the interface between sealing pipeline and vacuum tank, take vacuum tank direction one end as the beginning, be placed with successively baffle plate and aperture plate, this part consists of the vacuum system protective device jointly;
the annexation of native system is: vacuum tank is placed on worktable, be connected with mechanical pump through valve I by one road sealing pipeline, be connected with molecular pump through valve II by another road sealing pipeline, wherein, mechanical pump and molecular pump form the unit of bleeding in vacuum system, quartz iodine tungsten lamp, cold screen, the lunar dust simulation system, electron gun, deuterium lamp and radiation monitor all are placed in the vacuum tank inside of column type, quartz iodine tungsten lamp is suspended on the inner top of vacuum tank one end, cold screen is positioned at the two ends, left and right of vacuum tank, further, as required, cold screen can also be placed at the two ends up and down in vacuum tank, the lunar dust simulation system is positioned at the bottom of vacuum tank, wherein, lunar dust analogies and hoisting mechanism in the lunar dust simulation system are positioned at simulation table, simulation table is placed at the bottom of lunar dust simulation system, the lunar dust analogies are buried hoisting mechanism, cover plate is covered on simulation table, electron gun, deuterium lamp and radiation monitor all are placed in the top of the vacuum tank other end, sample stage is positioned at the lunar dust simulation system top of vacuum tank bottom, radiation monitor and temperature sensor are close to sample stage outside placement, vacuum meter is positioned at the top of vacuum tank inside, the optional position that does not affect the components and parts on other tops gets final product, electronic balance is positioned at the lunar dust simulation system top of vacuum tank bottom, and with the horizontal parallel position of sample stage, quartz iodine tungsten lamp, the lunar dust simulation system, electron gun is connected wire and is connected with power supply with deuterium lamp, cold screen is connected by the refrigeration unit of pipeline with the vacuum liquid nitrogen refrigerating system that is placed in the vacuum tank periphery, all parts in supervisory system is connected by the outer switch board of signal wire and vacuum tank, the vacuum suction unit is connected signal wire and is connected with switch board with power-supply system, control the power supply of other each system by switch board, and complete collection and the storage of various measuring-signals,
This test macro workflow is:
The first step is prepared before test, checks recirculated water, vacuum system and refrigeration system pipeline, valve, the circuit of the consumers such as the unit of bleeding, electron gun, deuterium lamp, quartz iodine tungsten lamp, lunar dust simulation system motor, and the signal line of each sensor and detector;
Second step connects computer and switch board serial line interface, powers on to switch board, opens total power switch and key switch on switch board, unclamps scram button, starts the switch board operation, checks whether each monitoring instrument working condition of switch board is normal;
In the 3rd step, test specimen is laid and vacuum; A check test sample, b is placed in sample on testing table, and c checks whether lunar dust simulation table cover plate is built, and d shuts the vacuum tank hatch door, and e opens the mechanical pump power supply, opens valve I, treats that vacuum tightness reaches 10
-2Pa closes mechanical pump and valve I; F opens molecular pump power source, opens valve II, treats that vacuum tightness reaches 10
-4During Pa, begin to carry out the 4th step test link;
The 4th step, the experimental test process, as the case may be,
Situation one: when needs simulation lunar environment, at first open heat circulating system, when temperature reaches design temperature, open the lunar dust simulation system, namely open the simulation table cover plate, then open the radiation environment simulation system, afterwards, carry out the test of following listed situation, and Real-time Collection simulated environmental parameters and all kinds of test figure and be transferred to switch board by signal wire.Wherein this environment is divided into two types:
Hoisting mechanism in the lunar dust simulation system starts, the lunar dust environment that forms when the air-flow that causes when analog prober logs in or detector motion, simultaneously, radiation environment simulation system electron gun and deuterium lamp accumulate to regulate electron irradiation and the ultraviolet radiation environment of simulation moonscape according to setting or raw data;
Hoisting mechanism in the lunar dust simulation system does not start, after analog prober logs in or the lunar dust environment of detector when static, simultaneously, radiation environment simulation system electron gun and deuterium lamp accumulate to regulate electron irradiation and the ultraviolet radiation environment of simulation moonscape according to setting or raw data;
Situation two: when all kinds of orbital environment of needs simulation, according to needed environmental factor, can select to open heat circulating system, simulate the alternating hot and cold environment, or electron gun or the deuterium lamp selecting to open in the radiation environment simulation system come simulation electronic radiation environment or ultraviolet radiation environment;
The 5th step, after off-test, preserve test figure, close heat circulating system, lunar dust simulation system, radiation environment simulation system, valve-off II, the closure molecule pump cuts out recirculated water after half an hour, each detecting instrument of closing control cabinet and computer, powered-down, open gas valve, open vacuum tank, take out test specimen.
Claims (5)
1. a small-sized comprehensive simulation system of lunar environment, comprise vacuum system, heat circulating system, lunar dust simulation system, radiation environment simulation system, supervisory system and sample stage; Wherein vacuum system comprises vacuum tank, mechanical pump, molecular pump, vacuum system protective device, sealing pipeline and worktable; Heat circulating system comprises that quartz iodine tungsten lamp and vacuum liquid nitrogen refrigerating system form, and wherein, the vacuum liquid nitrogen refrigerating system comprises refrigeration unit and cold screen; The lunar dust simulation system comprises lunar dust analogies, simulation table and hoisting mechanism; The radiation environment simulation system comprises electron gun and deuterium lamp; Supervisory system is by radiation monitor, temperature sensor, vacuum meter and electronic balance; Peripherals is: power supply and switch board; It is characterized in that: annexation is: vacuum tank is placed on worktable, be connected with mechanical pump through valve I by one road sealing pipeline, be connected with molecular pump through valve II by another road sealing pipeline, wherein, mechanical pump and molecular pump form the unit of bleeding in vacuum system; Quartz iodine tungsten lamp, cold screen, lunar dust simulation system, electron gun, deuterium lamp and radiation monitor all are placed in the vacuum tank inside of column type, quartz iodine tungsten lamp is suspended on the inner top of vacuum tank one end, cold screen is positioned at the two ends, left and right of vacuum tank, the lunar dust simulation system is positioned at the bottom of vacuum tank, wherein, lunar dust analogies and hoisting mechanism in the lunar dust simulation system are positioned at simulation table, simulation table is placed at the bottom of lunar dust simulation system, the lunar dust analogies are buried hoisting mechanism, and the simulation table cover plate is covered on simulation table; Electron gun, deuterium lamp and radiation monitor all are placed in the top of the vacuum tank other end; Sample stage is positioned at the lunar dust simulation system top of vacuum tank bottom, radiation monitor and temperature sensor are close to sample stage outside placement, vacuum meter is positioned at the top of vacuum tank inside, electronic balance is positioned at the lunar dust simulation system top of vacuum tank bottom, and with the horizontal parallel position of sample stage, quartz iodine tungsten lamp, lunar dust simulation system, electron gun and deuterium lamp are connected with power supply, cold screen is connected with the refrigeration unit of the vacuum liquid nitrogen refrigerating system that is placed in the vacuum tank periphery, and the outer switch board of all parts in supervisory system and vacuum tank is connected; The unit of bleeding of vacuum system is connected with switch board with power supply; Complete collection and the storage of various measuring-signals by switch board.
2. a kind of small-sized comprehensive simulation system of lunar environment according to claim 1 is characterized in that: replacement, place at the up and down two ends of cold screen in vacuum tank, or place at four ends up and down simultaneously.
3. a kind of small-sized comprehensive simulation system of lunar environment according to claim 1; it is characterized in that: in the sealing pipeline of the interface between sealing pipeline and vacuum tank; take vacuum tank direction one end as the beginning, be placed with successively baffle plate and aperture plate, this part consists of the vacuum system protective device jointly.
4. a kind of small-sized comprehensive simulation system of lunar environment according to claim 3, it is characterized in that: the vacuum system protective device comprises 1, the baffle plate more than 2, and 1, the aperture plate more than 2.
5. the analogy method of an a kind of small-sized comprehensive simulation system of lunar environment according to claim 1 is characterized in that its comprehensive simulation process is:
The first step checks whether each system works situation is normal; Normally, connect second step;
Second step, test specimen are laid and vacuum; A places and the check test sample, and b is placed in sample on sample stage, and c checks whether the simulation table cover plate is built, and d shuts the vacuum tank hatch door, and e opens the mechanical pump power supply, opens valve I, treats that vacuum tightness reaches 10
-2Pa closes mechanical pump and valve I; F opens molecular pump power source, opens valve II, treats that vacuum tightness reaches 10
-4During Pa, begin to carry out the 3rd step simulation link;
In the 3rd step, in simulation process, as the case may be, determine the course of work;
Situation one: when needs simulation lunar environment, at first open heat circulating system, when temperature reaches design temperature, open the lunar dust simulation system, namely open the simulation table cover plate, then open the radiation environment simulation system, afterwards, carry out the test of following listed situation, and various measuring-signals of Real-time Collection and be transferred to switch board by signal wire; Wherein this environment is divided into two types:
Hoisting mechanism in the lunar dust simulation system starts, the lunar dust environment that forms when the air-flow that causes when analog prober logs in or detector motion, simultaneously, radiation environment simulation system electron gun and deuterium lamp accumulate to regulate electron irradiation and the ultraviolet radiation environment of simulation moonscape according to setting or raw data;
Hoisting mechanism in the lunar dust simulation system does not start, after analog prober logs in or the lunar dust environment of detector when static, simultaneously, radiation environment simulation system electron gun and deuterium lamp accumulate to regulate electron irradiation and the ultraviolet radiation environment of simulation moonscape according to setting or raw data;
Situation two: when all kinds of orbital environment of needs simulation, according to needed environmental factor, select to open heat circulating system, simulate the alternating hot and cold environment, or electron gun or the deuterium lamp selecting to open in the radiation environment simulation system come simulation electronic radiation environment or ultraviolet radiation environment;
The 4th step, after off-test, preserve test figure, close various kinds of equipment, open vacuum tank, take out test specimen.
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| US6411871B1 (en) * | 2000-08-05 | 2002-06-25 | American Gnc Corporation | Autonomous navigation, guidance and control using LDRI |
| CN101886926A (en) * | 2010-01-18 | 2010-11-17 | 长春理工大学 | Moon simulation device |
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