CN102393288B - Spatial inflatable structure ground expansion performance test system - Google Patents
Spatial inflatable structure ground expansion performance test system Download PDFInfo
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- CN102393288B CN102393288B CN 201110362741 CN201110362741A CN102393288B CN 102393288 B CN102393288 B CN 102393288B CN 201110362741 CN201110362741 CN 201110362741 CN 201110362741 A CN201110362741 A CN 201110362741A CN 102393288 B CN102393288 B CN 102393288B
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Abstract
A spatial inflatable structure ground expansion performance test system is disclosed. The test system relates to an inflatable structure ground expansion performance test system. A current inflatable space structure expansion process has a strong randomness so that the process is not easy to be tested and evaluated. By using the system of the invention, the above problem can be solved. The test system of the invention comprises: an impact force test module and an air inflation control module. The impact force test module comprises: a triaxial piezoelectric-type acceleration sensor, a charge amplifier, A/D converter and a computer. The acceleration sensor is installed on a fixed support of an inflatable structure. During an expansion process, the impact force of the inflatable structure to the fixed support is acquired by the acceleration sensor. A signal is amplified by the charge amplifier and is converted by the A/D. the computer is used to collect data. The air inflation control module controls gas pressure and flow of the inflation process. Through performing spectrum analysis to the acceleration data during the different inflation processes, stability during the expansion process and influence on a satellite can be evaluated. The system of the invention has a wide application prospect in an aerospace industry.
Description
Technical field
The present invention relates to a kind of inflatable structure ground spreading Performance Test System, belong to space structure ground experiment technical field.
Background technology
Inflated spatial expanded structure is a kind of lightweight space structure, and inflating expanded process randomness is larger, and the physical quantitys such as each point displacement, speed, acceleration are difficult for measuring in the structure, and expansion process stability is difficult for estimating.At present, the pilot system that the deployment characteristics of inflatable structure is lacked effective evaluation.By measuring the inflatable structure expansion process to the acceleration of hold-down support, and can realize evaluation to inflating expanded process to the acceleration information analysis.Large-scale inflatable deployment structure often air cavity internal pressure is very low, therefore the sensor of measuring air cavity pressure generally adopts low pressure sensor, and in inflating expanded process, charge pressure is relatively very high, cause low pressure sensor to be easy to damage, therefore, low pressure measurement is the problem that the test of inflatable structure ground spreading needs solution.
Summary of the invention
The objective of the invention is to be difficult for greatly the problem that experimental test is estimated in order to solve existing space inflatable structure expansion process randomness, and then a kind of spatial inflatable structure ground expansion performance test system is provided.
Technical scheme of the present invention is:
Spatial inflatable structure ground expansion performance test system of the present invention, described spatial inflatable structure ground expansion performance test system is comprised of impulsive force test module and ventilating control module, described impulsive force test module is by three axle piezo-electric type acceleration transducers, charge amplifier, A/D converter and computing machine form, and described ventilating control module is by high-pressure air source, pressure switch, hand valve, vacuum filter, ratio adjusting valve, flow transmitter, pressure release electromagnetic valve, safety valve, low pressure transmitter, the PLC controller, touch-screen, power supply and multistage Overvoltage protecting unit form;
Described three axle piezo-electric type acceleration transducers are installed on the hold-down support of space inflatable structure, space inflatable structure impulsive force to hold-down support in expansion process is obtained by three axle piezo-electric type acceleration transducers, the signal output part of three axle piezo-electric type acceleration transducers links to each other with the signal input part of charge amplifier, the amplifying signal output terminal of charge amplifier links to each other with the signal input part of A/D converter, the switching signal output terminal of A/D converter links to each other with the signal input part of computing machine, and computing machine gathers data;
The outlet of described high-pressure air source is communicated with the entrance of pressure switch, pressure switch is used for the open and close of control high-pressure air source, the outlet of pressure switch is communicated with the entrance of hand valve, hand valve is used for regulating the pressure of high-pressure air source, the outlet of hand valve is communicated with the entrance of vacuum filter, vacuum filter is used for decompression and the filtration of gases at high pressure, the outlet of vacuum filter is communicated with the entrance of ratio adjusting valve, ratio adjusting valve is used for the flow of control gas, the outlet of ratio adjusting valve is communicated with the entrance of flow transmitter, flow transmitter is used for the flow of measurement gas, the outlet of flow transmitter is communicated with the entrance of pressure release electromagnetic valve, pressure release electromagnetic valve is used for the action of losing heart when space inflatable structure air cavity internal pressure surpasses predetermined pressure, the outlet of pressure release electromagnetic valve is communicated with the entrance of safety valve, safety valve is the disappointing element when space inflatable structure air cavity internal pressure surpasses predetermined pressure, the outlet of safety valve is communicated with the entrance of space inflatable structure air cavity, the outlet of space inflatable structure air cavity is communicated with the entrance of multistage Overvoltage protecting unit, the outlet of multistage Overvoltage protecting unit is communicated with the entrance of low pressure transmitter, and low pressure transmitter is used for the pressure of measurement space inflatable structure air cavity;
Signal output/the input end of described touch-screen links to each other with the signal I/O end of PLC controller; touch-screen is used for the ventilating control module is operated and the parameter setting; the flow signal output terminal that flow transmitter is measured links to each other with the flow signal input end of PLC controller; the gaseous tension signal output part that the gaseous tension signal output part that low pressure transmitter is measured and the multistage pressure transmitter of multistage Overvoltage protecting unit are measured links to each other with the multichannel pressure signal input end of PLC controller; the ratio of PLC controller is regulated the control signal output terminal and is linked to each other with the signal input part of ratio adjusting valve; the passing ratio variable valve is regulated the control flow of aerating air; the pressure release control signal output terminal of PLC controller links to each other with the signal input part of pressure release electromagnetic valve; the signal input part of a plurality of solenoid valves in the multi-way control signals output terminal of PLC controller and the multistage Overvoltage protecting unit links to each other the power output end of power supply and charge amplifier; A/D converter; computing machine; ratio adjusting valve; flow transmitter; pressure release electromagnetic valve; safety valve; low pressure transmitter; the PLC controller; multistage pressure transmitter in touch-screen and the multistage Overvoltage protecting unit and the power supply input end of a plurality of solenoid valves link to each other.
Described multistage Overvoltage protecting unit is comprised of multistage pressure transmitter and a plurality of solenoid valve, and the multistage pressure transmitter arranges separately with a plurality of solenoid valves and connects successively.
The quantity of described multistage pressure transmitter is two, is respectively first order pressure unit and second level pressure unit; The quantity of solenoid valve is two, is respectively the first solenoid valve and the second solenoid valve, and first order pressure unit is connected successively with the first solenoid valve, second level pressure unit and the second solenoid valve.
The present invention compared with prior art has following beneficial effect: the present invention has realized the ground test of space inflatable structure expansion process to the satellite shock effect, and has the low voltage experiment function, has avoided the damage of developing space inflation process mesolow sensor.The spectrum analysis of the acceleration information by the different spaces gas replenishment process can be assessed space inflatable structure expansion process stationarity and on the impact of satellite.The present invention has broad application prospects at space industry.
Description of drawings
Fig. 1 is the structural representation of spatial inflatable structure ground expansion performance test system of the present invention.
Among the figure, three axle piezo-electric type acceleration transducers 1, charge amplifier 2, A/D converter 3, computing machine 4, high-pressure air source 5, pressure switch 6, hand valve 7, vacuum filter 8, ratio adjusting valve 9, flow transmitter 10, pressure release electromagnetic valve 11, safety valve 12, low pressure transmitter 13, PLC controller 14, touch-screen 15, power supply 16, multistage Overvoltage protecting unit 17, hold-down support 18, space inflatable structure air cavity 19,20, second level pressure unit 21, the first solenoid valve 22 and the second solenoid valve 23.
Embodiment
Embodiment one: referring to Fig. 1, the spatial inflatable structure ground expansion performance test system of present embodiment, described spatial inflatable structure ground expansion performance test system is comprised of impulsive force test module and ventilating control module, described impulsive force test module is by three axle piezo-electric type acceleration transducers 1, charge amplifier 2, A/D converter 3 and computing machine 4 form, and described ventilating control module is by high-pressure air source 5, pressure switch 6, hand valve 7, vacuum filter 8, ratio adjusting valve 9, flow transmitter 10, pressure release electromagnetic valve 11, safety valve 12, low pressure transmitter 13, PLC controller 14, touch-screen 15, power supply 16 and multistage Overvoltage protecting unit 17 form;
Described three axle piezo-electric type acceleration transducers 1 are installed on the hold-down support 18 of space inflatable structure, space inflatable structure impulsive force to hold-down support 18 in expansion process is obtained by three axle piezo-electric type acceleration transducers 1, the signal output part of three axle piezo-electric type acceleration transducers 1 links to each other with the signal input part of charge amplifier 2, the amplifying signal output terminal of charge amplifier 2 links to each other with the signal input part of A/D converter 3, the switching signal output terminal of A/D converter 3 links to each other with the signal input part of computing machine 4, and 4 pairs of data of computing machine gather;
The outlet of described high-pressure air source 5 is communicated with the entrance of pressure switch 6, pressure switch 6 is used for the open and close of control high-pressure air source 5, the outlet of pressure switch 6 is communicated with the entrance of hand valve 7, hand valve 7 is used for regulating the pressure of high-pressure air source 5, the outlet of hand valve 7 is communicated with the entrance of vacuum filter 8, vacuum filter 8 is used for decompression and the filtration of gases at high pressure, the outlet of vacuum filter 8 is communicated with the entrance of ratio adjusting valve 9, ratio adjusting valve 9 is used for the flow of control gas, the outlet of ratio adjusting valve 9 is communicated with the entrance of flow transmitter 10, flow transmitter 10 is used for the flow of measurement gas, the outlet of flow transmitter 10 is communicated with the entrance of pressure release electromagnetic valve 11, pressure release electromagnetic valve 11 is used for the action of losing heart when space inflatable structure air cavity 19 internal pressures surpass predetermined pressure, the outlet of pressure release electromagnetic valve 11 is communicated with the entrance of safety valve 12, safety valve 12 is the disappointing elements when space inflatable structure air cavity 19 internal pressures surpass predetermined pressure, be used for safeguard protection, the outlet of safety valve 12 is communicated with the entrance of space inflatable structure air cavity 19, the outlet of space inflatable structure air cavity 19 is communicated with the entrance of multistage Overvoltage protecting unit 17, the outlet of multistage Overvoltage protecting unit 17 is communicated with the entrance of low pressure transmitter 13, and low pressure transmitter 13 is used for the pressure of measurement space inflatable structure air cavity 19;
Signal output/the input end of described touch-screen 15 links to each other with the signal I/O end of PLC controller 14; touch-screen 15 is used for the ventilating control module is operated and the parameter setting; the flow signal output terminal that flow transmitter 10 is measured links to each other with the flow signal input end of PLC controller 14; the gaseous tension signal output part that the gaseous tension signal output part that low pressure transmitter 13 is measured and the multistage pressure transmitter of multistage Overvoltage protecting unit 17 are measured links to each other with the multichannel pressure signal input end of PLC controller 14; the ratio of PLC controller 14 is regulated the control signal output terminal and is linked to each other with the signal input part of ratio adjusting valve 9; passing ratio variable valve 9 is regulated the control flow of aerating air; the pressure release control signal output terminal of PLC controller 14 links to each other with the signal input part of pressure release electromagnetic valve 11; the signal input part of a plurality of solenoid valves in the multi-way control signals output terminal of PLC controller 14 and the multistage Overvoltage protecting unit 17 links to each other the power output end of power supply 16 and charge amplifier 2; A/D converter 3; computing machine 4; ratio adjusting valve 9; flow transmitter 10; pressure release electromagnetic valve 11; safety valve 12; low pressure transmitter 13; PLC controller 14; multistage pressure transmitter in touch-screen 15 and the multistage Overvoltage protecting unit 17 and the power supply input end of a plurality of solenoid valves link to each other.
In the present embodiment, described multistage Overvoltage protecting unit 17 is comprised of multistage pressure transmitter and a plurality of solenoid valve, and the multistage pressure transmitter arranges separately with a plurality of solenoid valves and connects successively.The pressure measurement range of multistage pressure transmitter is certainly high to low.
In the present embodiment, the impulsive force test module is used for the impulsive force of test space inflatable structure ground spreading process; The ventilating control module is used for gaseous tension and the flow of control space inflatable structure expansion process; Power supply 16 provides working power for multistage pressure transmitter and a plurality of solenoid valve in charge amplifier 2, A/D converter 3, computing machine 4, ratio adjusting valve 9, flow transmitter 10, pressure release electromagnetic valve 11, safety valve 12, low pressure transmitter 13, PLC controller 14, touch-screen 15 and the multistage Overvoltage protecting unit 17.
Embodiment two: referring to Fig. 1, such as embodiment one described spatial inflatable structure ground expansion performance test system, the quantity of described multistage pressure transmitter is two, is respectively first order pressure unit 20 and second level pressure unit 21; The quantity of solenoid valve is two, is respectively the first solenoid valve 22 and the second solenoid valve 23, and first order pressure unit 20 is connected successively with the first solenoid valve 22, second level pressure unit 21 and the second solenoid valve 23.First order pressure unit 20 pressure measurement ranges are higher than the pressure measurement range of second level pressure unit 21, so arrange to be convenient to protect low pressure transmitter 13, the measurement of implementation space inflatable structure air cavity 19 low pressure.
Claims (3)
1. spatial inflatable structure ground expansion performance test system, it is characterized in that: described spatial inflatable structure ground expansion performance test system is comprised of impulsive force test module and ventilating control module, described impulsive force test module is by three axle piezo-electric type acceleration transducers (1), charge amplifier (2), A/D converter (3) and computing machine (4) form, and described ventilating control module is by high-pressure air source (5), pressure switch (6), hand valve (7), vacuum filter (8), ratio adjusting valve (9), flow transmitter (10), pressure release electromagnetic valve (11), safety valve (12), low pressure transmitter (13), PLC controller (14), touch-screen (15), power supply (16) and multistage Overvoltage protecting unit (17) form;
Described three axle piezo-electric type acceleration transducers (1) are installed on the hold-down support (18) of space inflatable structure, space inflatable structure impulsive force to hold-down support (18) in expansion process is obtained by three axle piezo-electric type acceleration transducers (1), the signal output part of three axle piezo-electric type acceleration transducers (1) links to each other with the signal input part of charge amplifier (2), the amplifying signal output terminal of charge amplifier (2) links to each other with the signal input part of A/D converter (3), the switching signal output terminal of A/D converter (3) links to each other with the signal input part of computing machine (4), and computing machine (4) gathers data;
The outlet of described high-pressure air source (5) is communicated with the entrance of pressure switch (6), pressure switch (6) is used for the open and close of control high-pressure air source (5), the outlet of pressure switch (6) is communicated with the entrance of hand valve (7), hand valve (7) is used for regulating the pressure of high-pressure air source (5), the outlet of hand valve (7) is communicated with the entrance of vacuum filter (8), vacuum filter (8) is used for decompression and the filtration of gases at high pressure, the outlet of vacuum filter (8) is communicated with the entrance of ratio adjusting valve (9), ratio adjusting valve (9) is used for the flow of control gas, the outlet of ratio adjusting valve (9) is communicated with the entrance of flow transmitter (10), flow transmitter (10) is used for the flow of measurement gas, the outlet of flow transmitter (10) is communicated with the entrance of pressure release electromagnetic valve (11), pressure release electromagnetic valve (11) is used for the action of losing heart when space inflatable structure air cavity (19) internal pressure surpasses predetermined pressure, the outlet of pressure release electromagnetic valve (11) is communicated with the entrance of safety valve (12), safety valve (12) is the disappointing element when space inflatable structure air cavity (19) internal pressure surpasses predetermined pressure, the outlet of safety valve (12) is communicated with the entrance of space inflatable structure air cavity (19), the outlet of space inflatable structure air cavity (19) is communicated with the entrance of multistage Overvoltage protecting unit (17), the outlet of multistage Overvoltage protecting unit (17) is communicated with the entrance of low pressure transmitter (13), and low pressure transmitter (13) is used for the pressure of measurement space inflatable structure air cavity (19);
Signal output/the input end of described touch-screen (15) links to each other with the signal I/O end of PLC controller (14); touch-screen (15) is used for the ventilating control module is operated and the parameter setting; the flow signal output terminal that flow transmitter (10) is measured links to each other with the flow signal input end of PLC controller (14); the gaseous tension signal output part that the gaseous tension signal output part that low pressure transmitter (13) is measured and the multistage pressure transmitter of multistage Overvoltage protecting unit (17) are measured links to each other with the multichannel pressure signal input end of PLC controller (14); the ratio of PLC controller (14) is regulated the control signal output terminal and is linked to each other with the signal input part of ratio adjusting valve (9); passing ratio variable valve (9) is regulated the control flow of aerating air; the pressure release control signal output terminal of PLC controller (14) links to each other with the signal input part of pressure release electromagnetic valve (11); the signal input part of a plurality of solenoid valves in the multi-way control signals output terminal of PLC controller (14) and the multistage Overvoltage protecting unit (17) links to each other the power output end of power supply (16) and charge amplifier (2); A/D converter (3); computing machine (4); ratio adjusting valve (9); flow transmitter (10); pressure release electromagnetic valve (11); safety valve (12); low pressure transmitter (13); PLC controller (14); multistage pressure transmitter in touch-screen (15) and the multistage Overvoltage protecting unit (17) and the power supply input end of a plurality of solenoid valves link to each other.
2. spatial inflatable structure ground expansion performance test system as claimed in claim 1; it is characterized in that: described multistage Overvoltage protecting unit (17) is comprised of multistage pressure transmitter and a plurality of solenoid valve, and the multistage pressure transmitter arranges separately with a plurality of solenoid valves and connects successively.
3. spatial inflatable structure ground expansion performance test system as claimed in claim 2, it is characterized in that: the quantity of described multistage pressure transmitter is two, is respectively first order pressure unit (20) and second level pressure unit (21); The quantity of solenoid valve is two, is respectively the first solenoid valve (22) and the second solenoid valve (23), and first order pressure unit (20) is connected successively with the first solenoid valve (22), second level pressure unit (21) and the second solenoid valve (23).
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110362741 CN102393288B (en) | 2011-11-16 | 2011-11-16 | Spatial inflatable structure ground expansion performance test system |
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| CN 201110362741 CN102393288B (en) | 2011-11-16 | 2011-11-16 | Spatial inflatable structure ground expansion performance test system |
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| CN102393288A CN102393288A (en) | 2012-03-28 |
| CN102393288B true CN102393288B (en) | 2013-04-10 |
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| CN106323664A (en) * | 2016-09-22 | 2017-01-11 | 珠海格力电器股份有限公司 | Vibration test and diagnosis method of air conditioning unit, device and air conditioner unit |
| CN107543675B (en) * | 2017-09-26 | 2024-05-10 | 南方电网科学研究院有限责任公司 | Device and method for testing earthquake resistance of extra-high voltage direct current converter valve |
| CN112591155A (en) * | 2020-12-15 | 2021-04-02 | 兰州空间技术物理研究所 | Evaluation method for inflatable unfolding structure of flexible ball spacecraft |
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Patent Citations (4)
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| CN1123748A (en) * | 1994-09-28 | 1996-06-05 | 大宇电子株式会社 | Airbag testing apparatus and a method therefor |
| US7328622B2 (en) * | 2005-06-30 | 2008-02-12 | The Boeing Company | Soft support systems and methods for dynamically testing structures |
| CN1769137A (en) * | 2005-10-21 | 2006-05-10 | 哈尔滨工业大学 | Truss type rigidifying solar energy cell array of inflatable expansion |
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