CN103217283B - Fair water fin performance microgravity test verification method in a kind of plate-type propellant management apparatus - Google Patents
Fair water fin performance microgravity test verification method in a kind of plate-type propellant management apparatus Download PDFInfo
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Abstract
Fair water fin performance microgravity test verification method in a kind of plate-type propellant management apparatus, the different fair water fin scale model parts of cross sectional shape are subjects, the microgravity test implementation method of the fair water fin scale model parts that the various cross sectional shape of major design is different in test method, and different tests condition renewal reward theorem, define test and prepare with test procedure, observation procedure of making a video recording, test anti-tampering strategy etc.This test method design is reasonable, workable, can realize the microgravity total Test of fair water fin scale model parts, and carry out shooting record to whole fluid delivery process, be convenient to follow-up test interpretation of result and fair water fin optimal design.According to test method of the present invention, fluid management and the transport property of fair water fin model can be obtained, and fair water fin performance is verified.
Description
Technical field
The present invention relates to associated components in a kind of plate-type propellant management apparatus (PDM)---the verification experimental verification method of fair water fin fluid transmission performance in micro-gravity conditions, can be applied to the microgravity test of various fair water fin scale model.
Background technology
Along with developing rapidly of large-scale truss type Platform Satellite in the world, the propellant tank of board-like PMD is adopted to become main flow in the world.From Eleventh Five-Year Plan latter stage, start to have carried out Large Copacity board-like PMD propellant tank development work, have developed board-like PMD model machine, the ground demonstration having carried out board-like PMD fluid transmission performance and management of performance is tested.This Demonstrator Trials can only be verified the Local Property of board-like PMD, truly cannot reflect its management utilizing surface tension convection body under space environment, control and transmittability.Therefore, must a large amount of microgravity tests be carried out, board-like PMD associated components performance is furtherd investigate.Therefore from March, 2011, for the board-like PMD associated components of certain satellite platform Large Copacity Vane Type Tank---fair water fin carries out contracting than design, build a set of microgravity test system, specify that overall plan and the function of pilot system, summary has drawn and has been applicable to board-like PMD associated components---simple, reliable, the feasible microgravity test method of fair water fin fluid transmission performance checking.Using this test method, repeatedly complete board-like PMD associated components---the different fluid management transport property of scale model of fair water fin and the microgravity test of liquid level repositioning process, demonstrate fluid management and the transmittability of microgravity environment chin spoiler.
Simultaneously, because board-like PMD propellant tank development and correlation test verification technique relate to national security, the country having grasped this technology often carries out blockade on new techniques, the data that abroad can provide is very not comprehensive, certain reference function can only be played, all not mentioned detailed experiment system design in the related article delivered, pilot system must be built voluntarily to the study mechanism of board-like PMD parts, carry out a large amount of microgravity tests, sum up microgravity test verification method, obtain the sufficient firsthand information, these basic datas can not obtain from foreign literature.
In sum, it is a kind of that board-like PMD associated components---the microgravity test verification method of fair water fin performance is the achievement of carrying out groping and summing up in Large Copacity board-like PMD propellant tank development process, whole test method is brand-new, domestic do not have relevant document and data to use for reference, and seldom discloses the similar pilot system of careless mistake abroad yet.In order to realize board-like PMD associated components---fair water fin fluid transfer pipe reason performance verification, the practice of binding tests process and experience, propose a kind of board-like PMD associated components first---the microgravity test verification method of fair water fin performance.
Summary of the invention
Technology of the present invention is dealt with problems and is: overcome the deficiencies in the prior art, there is provided the verification method of the fair water fin performance microgravity test in a kind of plate-type propellant management apparatus, board-like PMD associated components---the fluid management of fair water fin and transmittability under can effectively verifying microgravity environment.
Technical solution of the present invention is: the fair water fin performance microgravity test verification method in a kind of plate-type propellant management apparatus, and described subjects is fair water fin scale model parts, and performing step is as follows:
(1) the microgravity test system being used for the checking of fair water fin transmission performance is connected, enter step (2);
(2) modes of emplacement of fair water fin scale model parts is the key factors affecting fair water fin transmission performance, chooses two or more fair water fin scale model parts as this subjects, enters step (3); The modes of emplacement actual in board-like PMD according to fair water fin, the modes of emplacement of described fair water fin scale model parts has parallel type to put mode and vertical-type modes of emplacement, the cross sectional shape of described parallel type fair water fin scale model parts is isosceles-trapezium-shaped, and the cross sectional shape of described vertical-type fair water fin scale model parts is rectangle.The placement parallel with experimental liquid trough wall surface of parallel type fair water fin scale model parts, plane residing for isosceles trapezoid top margin d2 is near experimental liquid trough wall surface, vertical-type fair water fin scale model parts are vertical with experimental liquid trough wall surface to be placed, and the plane residing for rectangular wide d is near experimental liquid trough wall surface;
(3) fair water fin scale model parts and experimental liquid trough wall surface clearance distance are also the key factors affecting fair water fin transmission performance, in test liquid bath, fair water fin scale model parts are placed according to a kind of modes of emplacement, and fair water fin scale model parts and experimental liquid trough wall surface are kept certain interval distance, guarantee there are enough distances between two fair water fin scale model parts simultaneously, prevent from mutually producing flowing interference between fair water fin scale model parts, fix fair water fin contracting and enter step (4) than scale model; Described fair water fin scale model parts and experimental liquid trough wall surface clearance distance are 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm or 5mm; Distance between described two kinds of fair water fin scale model parts should be not less than 25mm;
(4) in test liquid bath, add certain simulated solution, enter step (5) by after test liquid bath good seal; In order to can more clearly observe and comparison test result, in described test liquid bath, level is about 5% ~ 10% of liquid bath total depth;
(5) will add simulated solution and the test of the liquid bath of good seal is placed in microgravity test system frame, guarantee that described test liquid bath installs fixing fair water fin scale model parts side near high-speed CCD camera, after being fixed by test liquid bath, enter step (6);
(6) adjust high-speed CCD camera camera head, support and filter device, guarantee that photographic effect is good, can the whole microgravity test process of spotless track record;
(7) high-speed CCD camera is opened RECORD mode, start to carry out microgravity test.After microgravity test terminates, reclaim microgravity test system, preserve the image result acquired by shooting;
(8) according to the microgravity test result of all acquisitions, judge whether to cover described various fair water fin scale model parts and liquid bath wall clearance distance, if cover completely, then enter step (9); If not cover completely, then enter step (3), change fair water fin scale model parts and liquid bath wall clearance distance;
(9) according to the microgravity test result of all acquisitions, judge whether to cover various described fair water fin scale model parts, if cover completely, then microgravity test completes end; If not cover completely, then enter step (2), change fair water fin scale model parts.
Described parallel type fair water fin scale model modular construction parameter mainly comprises trapezoidal base d1, trapezoidal top margin d2, trapezoidal height b1 and model assembly height h1.Described trapezoidal base d1 is 6mm or 12mm.When described trapezoidal base d1 is 6mm, described trapezoidal top margin d2 is 1mm, 2mm, 3mm, 4mm or 5mm, and described trapezoidal height b1 is 2mm; When described trapezoidal base d1 is 12mm, described trapezoidal top margin d2 is 2mm, 4mm, 6mm, 8mm or 10mm, and described trapezoidal height b1 is 4mm.Described model assembly height h1 is 40mm.
Described vertical-type fair water fin scale model modular construction parameter mainly comprises long d, wide b2, model assembly height h2.Described long d is 2mm, 4mm, 6mm, 8mm or 10mm; Described wide b2 is 0.5mm; Described model assembly height h2 is 40mm.
Described test liquid bath adopts pmma material, and its refractive index is 1.491, and transmittance is about 90%, and in described test liquid bath, total depth is 60mm.
The present invention's beneficial effect is compared with prior art:
(1) the present invention adopts multiple scale model to carry out microgravity test simultaneously, and test findings contrast excellent, is conducive to test result analysis, simultaneously test efficiency and high financial profit.
(2) test method of the present invention's employing is reasonable, practical, workable, good checking effect is played to fair water fin fluid management and transmission performance, be applied in the board-like PMD propellant tank development of Large Copacity, for board-like PMD optimal design provides good data basis, be with a wide range of applications and promotion prospect.
Accompanying drawing explanation
Fig. 1 is the structure principle chart of the pilot system that the inventive method adopts when realizing;
Fig. 2 is the structural representation of Height Adjustable test bracket assembly in Fig. 1;
Fig. 3 is the process flow diagram of test method of the present invention;
Fig. 4 is fair water fin scale model modular construction schematic diagram of the present invention, and wherein a is parallel type fair water fin scale model parts, and b is vertical-type fair water fin scale model parts;
Fig. 5 is that fair water fin scale model parts of the present invention place schematic diagram in test liquid bath.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is further described in detail.
As shown in Figure 1, the pilot system that the inventive method adopts comprises the parts such as pilot system substrate 1, Height Adjustable test bracket assembly, image capturing system, illuminator, and the part such as Height Adjustable test bracket assembly, image capturing system, illuminator all arranges two covers symmetrically on pilot system substrate 1, pilot system possesses the ability of simultaneously carrying out two kinds of test model microgravity tests.
The lightweight circular aluminum of pilot system substrate 1 to be one piece of inside be timber keriotheca is dull and stereotyped, installing compactly with fixing for realizing the part such as Height Adjustable test bracket assembly, image capturing system, illuminator, realizing pilot system simultaneously and installing with microgravity test cabin and be connected.
Height Adjustable test bracket assembly is made up of two support plates and two supports, first support plate 3 and the distribution of the second support plate 13 are used for support and fix the first test liquid bath 2 and the second test liquid bath 14, first support 4 and the second support 12 and be respectively used to support and fix the first support plate 3 and the second support plate 13.
Image capturing system is made up of two high-speed CCD cameras, two CCD cameras and two camera bearings, and the highest resolution of the first high-speed CCD camera is 1280 × 1024pixel, and under this resolution, the frame per second of camera can reach 1000fps.First high-speed CCD camera 7 and the second high-speed CCD camera 15 are fixed on first camera bearing 8 and second camera bearing 16 respectively, be respectively used to real time record first and test trial image in liquid bath 2 and the second test liquid bath 14, the CCD camera 9 provided for oneself in microgravity test cabin and the 2nd CCD17 camera respectively real-time radio the spread of the rumours first test the test preparation of liquid bath 2 and the second test liquid bath 14, guarantee that microgravity test normally carries out smoothly.
Illuminator is made up of two light intensity light source and two filters, first light intensity light source 5 and the second light intensity light source 10 are fixed on the flat board of the first support 4 and the second support 12 respectively, namely lay respectively at immediately below the first support plate 3 and the second support plate 13, the first filter 6 and the second filter 11 lay respectively at the first CCD camera 7, second high-speed CCD camera 15 and first and test liquid bath 2, second and test between liquid bath 14.
The concrete connected mode of pilot system is as follows: on pilot system substrate 1, accomplish fluently the corresponding mounting hole fixed for support and camera support in advance; First support 4 and the second support 12 are fixed on position corresponding on pilot system substrate 1 respectively; First camera bearing 8 and second camera bearing 16 are fixed on position corresponding on pilot system substrate 1 respectively; First high-speed CCD camera 7 and the second high-speed CCD camera 15 are fixed on first camera bearing 8 and second camera bearing 16 respectively; First test liquid bath 2 and the second test liquid bath 14 are fixed on the first support plate 3 and the second support plate 13 respectively, then according to the first test liquid bath 2 and the second test mounting means of liquid bath 14 and photographic effect of the first high-speed CCD camera 7 and the second high-speed CCD camera 15, regulate support plate 3 and support plate 13 height at support 4 and support 12, then the second support plate 13 of the first support plate 3 and the second test liquid bath 14 that are provided with the first test liquid bath 2 is separately fixed on the first support 4 and the second support 12; The pilot system substrate 1 installing pilot system is installed and is engaged on appropriate location in microgravity test cabin, then the first high-speed CCD camera 7 and the second high-speed CCD camera 15 shooting adjustment is carried out, confirm that the first filter 6 and the second filter 11 lay respectively at the first CCD camera 7, second high-speed CCD camera 15 and first and test liquid bath 2, second and test position between liquid bath 14, then the first filter 6 and the second filter 11 are fixed.
As shown in Figure 2, four pillars of each support are equipped with multiple pilot hole, for regulating the height of support plate.And each support plate is porous plate, different tests model can be adapted to fixing requirement is installed.Support plate placing height can regulate according to test model, and whole Height Adjustable test bracket assembly mounting or dismounting are very easy.
Although high-speed CCD camera has higher light sensitivity, because the high-speed capture situation lower time shutter is extremely short, must throw light on light intensity light source.Due to transparent pmma material multiplex in test model, hot spot can be produced in the picture by the refraction of organic glass under light intensity light source illumination, affect picture quality, therefore need to add filter, to obtain higher-quality image between camera and test model.
As shown in a in Fig. 4, parallel type fair water fin scale model modular construction parameter mainly comprises trapezoidal base d1, trapezoidal top margin d2, trapezoidal height b1 and model assembly height h1.Described trapezoidal base d1 is 6mm or 12mm.When described trapezoidal base d1 is 6mm, described trapezoidal top margin d2 is 1mm, 2mm, 3mm, 4mm or 5mm, and described trapezoidal height b1 is 2mm; When described trapezoidal base d1 is 12mm, described trapezoidal top margin d2 is 2mm, 4mm, 6mm, 8mm or 10mm, and described trapezoidal height b1 is 4mm.Described model assembly height h1 is 40mm.As shown in the b in Fig. 4, vertical-type fair water fin scale model modular construction parameter mainly comprises long d, wide b2, model assembly height h2.Described long d is 2mm, 4mm, 6mm, 8mm or 10mm; Described wide b2 is 0.5mm; Described model assembly height h2 is 40mm.
As shown in Figure 5, test liquid bath adopts pmma material, and its refractive index is 1.491, and transmittance is about 90%, and in test liquid bath, total depth is 60mm.The modes of emplacement actual in board-like PMD according to fair water fin, the modes of emplacement of fair water fin scale model parts has parallel type to put mode and vertical-type modes of emplacement, the cross sectional shape of parallel type fair water fin scale model parts is isosceles-trapezium-shaped, and the cross sectional shape of vertical-type fair water fin scale model parts is rectangle.The placement parallel with experimental liquid trough wall surface of parallel type fair water fin scale model parts, plane residing for isosceles trapezoid top margin d2 is near experimental liquid trough wall surface, vertical-type fair water fin scale model parts are vertical with experimental liquid trough wall surface to be placed, and the plane residing for rectangular wide d is near experimental liquid trough wall surface.; Fair water fin scale model parts and experimental liquid trough wall surface clearance distance are 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm or 5mm; Distance between two kinds of fair water fin scale model parts should be not less than 25mm.
As shown in Figure 3, the inventive method, subjects is fair water fin scale model parts, and step is as follows:
(1) the microgravity test system being used for the checking of fair water fin transmission performance is connected, enter step (2);
(2) choose four fair water fin scale model parts as this subjects, two fair water fin scale model parts are set to one group, totally two groups, enter step (3);
(3) fair water fin modes of emplacement, fair water fin and liquid bath wall clearance distance are the key factors affecting fair water fin transmission performance.According to fair water fin scale model unit type, each group of fair water fin scale model parts are placed in test liquid bath according to certain way, and keep certain interval distance to place with test liquid bath 2 and the wall testing liquid bath 14 respectively two groups of fair water fin model assemblies, such as clearance distance chooses 2mm, guarantee that the spacing with interior two the fair water fin scale model parts of group is not less than 25mm simultaneously, prevent from mutually producing flowing interference between two fair water fin scale model parts, step (4) is entered after the first test liquid bath 2 and the good scale model parts of the second test liquid bath 14 internal fixtion,
(4) in the first test liquid bath 2 and the second test liquid bath 14, add certain simulated solution, enter step (5) by after the first test liquid bath 2 and the second test liquid bath 14 good seal; In order to can more clearly observe and comparison test result, described test liquid bath internal mold plan liquid level is about 5% ~ 10% of test liquid bath total depth;
(5) simulated solution will be added and the test model of first of good seal the test liquid bath 2 and the second test liquid bath 14 is placed on microgravity test system first support plate 3 and the second support plate 13 respectively, guarantee that described test liquid bath installs fixing fair water fin scale model parts side all near the first high-speed CCD camera 7 and the second high-speed CCD camera 15, after the first test liquid bath 2 and the second test liquid bath 14 being fixed, enter step (6);
(6) the first high-speed CCD camera 7 and the second high-speed CCD camera 15 camera head, the first support 4 and the device such as the second support 12, first filter 6 and the second filter 11 is adjusted, guarantee that the photographic effect of the first high-speed CCD camera 7 and the second high-speed CCD camera 15 is good, can the whole microgravity test process of spotless track record;
(7) the first high-speed CCD camera 7 and the second high-speed CCD camera 15 are all opened RECORD mode, start to carry out microgravity test.After microgravity test terminates, reclaim microgravity test system, preserve the image result acquired by shooting;
(8) according to the microgravity test result of all acquisitions, judge whether to cover described various fair water fin scale model parts and liquid bath wall clearance distance, if cover completely, then enter step (9); If not cover completely, then enter step (3), the clearance distance of change fair water fin scale model parts and liquid bath wall;
(9) according to the microgravity test result of all acquisitions, judge whether to cover various described fair water fin scale model parts, if cover completely, then microgravity test completes end; If not cover completely, then enter step (2), change fair water fin scale model parts.
In the board-like surface tension propellant tank development process of China's model satellite platform Large Copacity, apply the inventive method and microgravity test checking has been carried out, for fair water fin optimal design provides important reference value to board-like PMD deflector structure fluid management transmission performance.
The unspecified part of the present invention belongs to general knowledge as well known to those skilled in the art.
Claims (4)
1. the fair water fin performance microgravity test verification method in plate-type propellant management apparatus, described subjects is fair water fin scale model parts, it is characterized in that step is as follows:
(1) the microgravity test system being used for the checking of fair water fin transmission performance is connected, enter step (2);
(2) modes of emplacement of fair water fin scale model parts is the key factors affecting fair water fin transmission performance, chooses two or more fair water fin scale model parts as this subjects, enters step (3), the modes of emplacement actual in board-like PMD according to fair water fin, the modes of emplacement of described fair water fin scale model parts has parallel type to put mode and vertical-type modes of emplacement, the cross sectional shape of described parallel type fair water fin scale model parts is isosceles-trapezium-shaped, the cross sectional shape of described vertical-type fair water fin scale model parts is rectangle, the placement parallel with experimental liquid trough wall surface of parallel type fair water fin scale model parts, plane residing for isosceles trapezoid top margin d2 is near experimental liquid trough wall surface, vertical-type fair water fin scale model parts are vertical with experimental liquid trough wall surface to be placed, plane residing for rectangular wide d is near experimental liquid trough wall surface,
(3) fair water fin scale model parts and experimental liquid trough wall surface clearance distance are also the key factors affecting fair water fin transmission performance, in test liquid bath, fair water fin scale model parts are placed according to a kind of modes of emplacement, and fair water fin scale model parts and experimental liquid trough wall surface are kept certain interval distance, guarantee there are enough distances between two fair water fin scale model parts simultaneously, prevent from mutually producing flowing interference between fair water fin scale model parts, fix fair water fin scale model and enter step (4); Described fair water fin scale model parts and experimental liquid trough wall surface clearance distance are 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm or 5mm; Distance between described two kinds of fair water fin scale model parts should be not less than 25mm;
(4) in test liquid bath, add certain simulated solution, enter step (5) by after test liquid bath good seal; In order to can more clearly observe and comparison test result, in described test liquid bath, level is about 5% ~ 10% of liquid bath total depth;
(5) simulated solution will be added and the test liquid bath of good seal is placed in microgravity test system frame, guarantee that described test liquid bath installs fixing fair water fin scale model parts side near high-speed CCD camera, after being fixed by test liquid bath, enter step (6);
(6) adjust high-speed CCD camera camera head, support and filter device, guarantee that photographic effect is good, can the whole microgravity test process of spotless track record;
(7) high-speed CCD camera is opened RECORD mode, start to carry out microgravity test, after microgravity test terminates, reclaim microgravity test system, preserve the image result acquired by shooting;
(8) according to the microgravity test result of all acquisitions, judge whether to cover described various fair water fin scale model parts and liquid bath wall clearance distance, if cover completely, then enter step (9); If not cover completely, then enter step (3), change fair water fin scale model parts and liquid bath wall clearance distance;
(9) according to the microgravity test result of all acquisitions, judge whether to cover various described fair water fin scale model parts, if cover completely, then microgravity test completes end; If not cover completely, then enter step (2), change fair water fin scale model parts.
2. the fair water fin performance microgravity test verification method in a kind of plate-type propellant management apparatus according to claim 1, it is characterized in that: described parallel type fair water fin scale model modular construction parameter mainly comprises trapezoidal base d1, trapezoidal top margin d2, trapezoidal height b1 and model assembly height h1, described trapezoidal base d1 is 6mm or 12mm, when described trapezoidal base d1 is 6mm, described trapezoidal top margin d2 is 1mm, 2mm, 3mm, 4mm or 5mm, and described trapezoidal height b1 is 2mm; When described trapezoidal base d1 is 12mm, described trapezoidal top margin d2 is 2mm, 4mm, 6mm, 8mm or 10mm, and described trapezoidal height b1 is 4mm, and described model assembly height h1 is 40mm.
3. the fair water fin performance microgravity test verification method in a kind of plate-type propellant management apparatus according to claim 1, is characterized in that: described vertical-type fair water fin scale model modular construction parameter comprises long d, wide b2, model assembly height h2; Described long d is 2mm, 4mm, 6mm, 8mm or 10mm; Described wide b2 is 0.5mm; Described model assembly height h2 is 40mm.
4. the fair water fin performance microgravity test verification method in a kind of plate-type propellant management apparatus according to claim 1, it is characterized in that: described test liquid bath adopts pmma material, its refractive index is 1.491, and transmittance is about 90%, and in described test liquid bath, total depth is 60mm.
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