CN105571968A - Combined loading test device - Google Patents

Combined loading test device Download PDF

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Publication number
CN105571968A
CN105571968A CN201510931955.3A CN201510931955A CN105571968A CN 105571968 A CN105571968 A CN 105571968A CN 201510931955 A CN201510931955 A CN 201510931955A CN 105571968 A CN105571968 A CN 105571968A
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CN
China
Prior art keywords
gas
linear module
test
testpieces
test platform
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Pending
Application number
CN201510931955.3A
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Chinese (zh)
Inventor
霍施宇
高翔
燕群
黄文�
由于
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AVIC Aircraft Strength Research Institute
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AVIC Aircraft Strength Research Institute
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Publication date
Application filed by AVIC Aircraft Strength Research Institute filed Critical AVIC Aircraft Strength Research Institute
Priority to CN201510931955.3A priority Critical patent/CN105571968A/en
Publication of CN105571968A publication Critical patent/CN105571968A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/56Investigating resistance to wear or abrasion
    • G01N3/567Investigating resistance to wear or abrasion by submitting the specimen to the action of a fluid or of a fluidised material, e.g. cavitation, jet abrasion
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/60Investigating resistance of materials, e.g. refractory materials, to rapid heat changes

Abstract

The invention relates to the field of thermal performance test and cooling efficiency test of thermal protection systems of aircraft, in particular to a combined loading test device. The combined loading test device comprises a test platform, a gas heating component which is used for heating a test piece, an air flow cooling component which is used for cooling the test piece, a temperature monitoring device which is used for acquiring the temperature information of the test piece in real time, and a control device which is used for controlling the gas heating component and the air flow cooling component according to the temperature information. According to the combined loading test device, the test piece is heated by the gas heating component, so that the disadvantages in the conventional heating mode are overcome; the shear effect caused by high-temperature air flow convection heating environment and air flow scouring, and the oxidation corrosion effect of a combustion product on the surface coating of a component when the test piece is used are truly simulated, and the working environment of the test piece can be truly simulated.

Description

A kind of combination loading test unit
Technical field
The present invention relates to thermal performance test and the cooling effectiveness field tests of aircraft thermal protection system, particularly relate to a kind of combination loading test unit.
Background technology
The high temperatures typical heat structure being representative with aero-turbine and hypersonic aircraft thermal protection system is fast-developing, force novel heatproof materials application and the constantly progress of heat structure Cooling Design, corresponding thermal performance test and cooling effectiveness evaluation test ability are had higher requirement.
Conventional high/low temperature cyclic test case temperature is not enough, and intensification cooling velocity is comparatively slow, can not meet the requirement of engine thermal end pieces thermal shock test.Traditional quartz lamp radiation heater limit due to self-condition, and time long, heating-up temperature is difficult to breakthrough 1200 DEG C.Graphite radiation heating-up temperature is higher, but heating environment needs vacuum or inert gas shielding.
Summary of the invention
The object of this invention is to provide a kind of combination loading test unit, to solve at least one technical matters above-mentioned.
Technical scheme of the present invention is:
A kind of combination loading test unit, comprising:
Test platform, described test platform is provided with testpieces;
Gas heating assembly, for the burning by controlling combustion gas to heat described testpieces;
Air-flow cooling package, for carrying out cooling down by refrigerating gas to described testpieces;
Device for detecting temperature, for the temperature information of testpieces described in Real-time Obtaining;
Control device, controls described gas heating assembly and described air-flow cooling package respectively for the temperature information fed back according to described device for detecting temperature.
Preferably, described combination loading test unit also comprises:
First linear module, is slidably arranged in the upper surface of described test platform along the upper surface direction being parallel to described test platform;
Second linear module, the upper surface of the described first linear module that slides along the upper surface direction being parallel to described test platform, glide direction is vertical with the glide direction of the described first linear module, and described testpieces is arranged on the described second linear module upper surface.
Preferably, the described first linear module is slidably arranged in the upper surface of described test platform by the first slide rail, and is driven by the first drive unit;
Described second linear module is slidably arranged in the upper surface of the described first linear module by the second slide rail, and is driven by the second drive unit.
Preferably, described first drive unit and described second drive unit are motor;
The temperature information of described control device also for feeding back according to described device for detecting temperature controls described motor.
Preferably, described combination loading test unit also comprises:
Universal stage, bottom is fixedly installed the described second linear module upper surface, and top is fixedly connected with described testpieces, and described universal stage has the rotation perpendicular to the described second linear module upper surface, rotates around described rotation for driving described testpieces;
The temperature information rotation to described universal stage of described control device also for feeding back according to described device for detecting temperature controls.
Preferably, described gas heating assembly has gas gun, and described gas gun is arranged on described test platform;
Described air-flow cooling package has air cooling spout, and described air cooling spout is arranged on described test platform.
Preferably, described gas gun regulates Bracket setting on described test platform by first, and described first regulates support for regulating the spout direction of described gas gun;
Described air cooling spout regulates Bracket setting on described test platform by second, and described second regulates support for regulating the direction of described air cooling spout.
Preferably, described gas heating assembly also comprises:
Oxygen gas cylinder, described oxygen gas cylinder is communicated with described gas gun by the first reduction valve, first-class gauge and the first variable valve successively;
Combustion gas gas cylinder, described combustion gas gas cylinder is communicated with described gas gun by the second reduction valve, second gauge and the second variable valve successively.
Preferably, described air-flow cooling package also comprises refrigerating gas storage tank, described refrigerating gas storage tank manually variable valve, filtrator, precise pressure-reducing valve, solenoid valve and flow controller and described air cooling spout connection successively.
The invention has the advantages that:
Combination loading test unit of the present invention, by gas heating assembly, testpieces is heated, the deficiency of traditional heating mode can be overcome, the shearing effect brought at high temperature gas flow convective heating environment, airflow scouring when simulation test piece uses more truly and products of combustion, can the working environments of comparatively real testpieces to the oxidation corrosion effect of component surface coating; In addition, air-flow cooling package can also be coordinated to carry out cooling down to testpieces, realize heating and combine controlled loading, for examining anti-heat proof material ablation property, small-scale structure thermal shock resistance and thermal fatigue property with cooling.
Accompanying drawing explanation
Fig. 1 is the structural representation of combination loading test unit of the present invention.
Embodiment
For making object of the invention process, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is further described in more detail.In the accompanying drawings, same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Described embodiment is the present invention's part embodiment, instead of whole embodiments.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limiting the scope of the invention can not be interpreted as.
Be described in further details below in conjunction with 1 pair, accompanying drawing combination loading test unit of the present invention.
The invention provides a kind of combination loading test unit, for carrying out thermal shock, heat fatigue, thermal cycling test research to hot junction structures such as engine turbine, thermal protection system, jet pipes.Comprise test platform 1, gas heating assembly, air-flow cooling package, device for detecting temperature and control device.
Test platform 1 can adopt known multiple applicable platform, test platform 1 is provided with testpieces 2, and test specimen part can be the hot junction structures such as engine turbine, thermal protection system, jet pipe.
The structure of gas heating assembly can carry out the selection be applicable to as required, and for the burning by controlling combustion gas to heat testpieces 2, heating-up temperature can according to testing the selection needing to carry out being applicable to.
The structure of air-flow cooling package can carry out the selection be applicable to equally as required, for carrying out cooling down by refrigerating gas to testpieces 2; Wherein, refrigerating gas can multiple applicable inert gas, such as carbon dioxide, helium etc.
Device for detecting temperature is used for the temperature information of testpieces 2 described in Real-time Obtaining, can adopt such as temperature sensor, thermopair etc.
Control device is used for controlling gas heating assembly and air-flow cooling package respectively according to the temperature information of device for detecting temperature feedback.
Combination loading test unit of the present invention, by gas heating assembly, testpieces 2 is heated, the deficiency of traditional heating mode can be overcome, the shearing effect that when simulation test piece 2 uses more truly, (such as in engine startup procedure) brings at high temperature gas flow convective heating environment, airflow scouring and products of combustion are to the oxidation corrosion effect of component surface coating, can the working environment of comparatively real simulation test piece 2 (such as engine thermal end pieces, particularly turbine nozzle vane and turbo blade); In addition, air-flow cooling package can also be coordinated to carry out cooling down to testpieces 2, realize heating and combine controlled loading, for examining anti-heat proof material ablation property, small-scale structure thermal shock resistance and thermal fatigue property with cooling.
In combination loading test unit of the present invention, testpieces is arranged on test platform 1 by platform pusher, makes testpieces can carry out moving and can rotating in multiple directions.Particularly, platform pusher comprises the first linear module 4 of linear module 3, second and universal stage 5.
First linear module 3 is slidably arranged in the upper surface of test platform 1 along the upper surface direction being parallel to test platform 1.Particularly, the first linear module 3 is arranged on the upper surface of test platform 1 by the first slide rail slip (not shown), and is driven by the first drive unit (not shown).Wherein, first drive unit is preferably motor, control device also sends pulse command for the temperature information that feeds back according to device for detecting temperature to the motor of the first linear module 3, pulse command can comprise propelling movement (movement) position and time, thus controls the movement of the first linear module 3.
Second linear module 4 slides along the upper surface direction being parallel to test platform 1 upper surface of the first linear module 3, and glide direction is vertical with the glide direction of the first linear module 3, and testpieces 2 is arranged on the second linear module 4 upper surface.Particularly, the second linear module 4 is arranged on the upper surface of the first linear module 3 by the second slide rail slip (not shown), and is driven by the second drive unit (not shown).Wherein, second drive unit is preferably motor, and the temperature information of control device also for feeding back according to device for detecting temperature controls motor, thus controls the movement of the second linear module 4, control principle controls similar to the above-mentioned first linear module 3, repeats no more.
Universal stage 5 has the rotation perpendicular to the second linear module 4 upper surface; The bottom of universal stage 5 is fixedly installed the second linear module 4 upper surface, and top is fixedly connected with testpieces 2, is used for testpieces 2 to be fixed on the second linear module 4 upper surface on the one hand, can also rotates around rotation by motoring ring test part 2.In addition, testpieces 2 can also be arranged on fixture on universal stage 5 by fixture, and fixture according to by examination test specimen planform and testing requirements, can be designed to corresponding high-temp. resistant water-cooled fixture.Further, the temperature information rotation to universal stage 5 of control device also for feeding back according to device for detecting temperature controls.
In sum, Platform Machinery pusher of the present invention adopts guide rail leading screw and linear module to build, and forms two-dimentional supplying system, coordinates universal stage 5 to realize three-dimensional motion, can complete the periodicity thermal cycling test in multiple direction.
In combination loading test unit of the present invention, gas heating assembly can also comprise gas gun 6, oxygen gas cylinder 10 and combustion gas gas cylinder 14.The position of gas gun 6 can be arranged according to the heating region of testing requirements; Further, gas gun 6 can regulate support 8 to be arranged on test platform 1 by first, and first regulates support 8 for the spout direction of regulating gas spray gun 6; Wherein, first regulates support 8 can adopt multiple known supporting structure, and it is determine according to its structure to the adjustment in gas gun 6 spout direction, in the present embodiment, preferably first regulates support 8 can realize height, level and pitch regulation.
Further, oxygen gas cylinder 10 is communicated with gas gun 6 by the first reduction valve 11, first-class gauge 12 and the first variable valve 13 successively; Combustion gas gas cylinder 14 is communicated with gas gun 14 by the second reduction valve 15, second gauge 16 and the second variable valve 17 successively.Wherein, can adjust output pressure by controlling oxygen gas cylinder 10 with combustion gas gas cylinder 14 reduction valve, and by regulating and controlling valve adjustment oxygen and gas flow and blending ratio, and then control flame status parameter, stablize spray combustion.It should be noted that, above-mentioned control can be Non-follow control, also can be connected with the first reduction valve 11, first variable valve 13, second reduction valve 15 and the second variable valve 17 by control device, thus is automatically controlled by control device.
In combination loading test unit of the present invention, air-flow cooling package can comprise air cooling spout 7, and the position of air cooling spout 7 can be arranged according to the cooled region of testing requirements; Further, air cooling spout 7 regulates support 9 to be arranged on test platform 1 by second, and second regulates support 9 for regulating the direction of air cooling spout 7, and second regulates the structure and first of support 9 to regulate support 8 similar, repeats no more.
Further, air-flow cooling package also comprises refrigerating gas storage tank 18, and manually variable valve 19, filtrator (20), precise pressure-reducing valve 21, solenoid valve 22 and flow controller 23 are communicated with air cooling spout 7 refrigerating gas storage tank 18 successively.Equally, manually can control air-flow cooling package and carry out work, also automatically can be controlled by control device.
In addition, it should be noted that, control device to be chosen as multiple applicable structure devices as required, such as, adopt PLC, be connected with device for detecting temperature and each drive motor respectively on the one hand, thus automatically control each motor according to temperature information.In addition, PLC also can carry out remote monitoring by remote monitoring computing machine, also can be controlled by execute-in-place device.
Can according to the requirement of test temperature control by PLC, testpieces 2 is pushed to the position set and heats by the adjustment of control propelling movement platform displacement, namely by real-time regulating gas spray gun 6 and testpieces 2 distance controlling programming rate and temperature, " temperature-heating distance " closed-loop control is realized; Correspondingly, by controlling gas flow controller, " temperature-air cooling flow " closed-loop control is realized.Wherein, platform pusher installs heat flow meter, flame heated condition can be demarcated by heat flow meter, determines oxygen and gaseous-pressure, flow and blending ratio.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.

Claims (9)

1. a combination loading test unit, is characterized in that, comprising:
Test platform (1), described test platform (1) is provided with testpieces (2);
Gas heating assembly, for the burning by controlling combustion gas to heat described testpieces (2);
Air-flow cooling package, for carrying out cooling down by refrigerating gas to described testpieces (2);
Device for detecting temperature, for the temperature information of testpieces described in Real-time Obtaining (2);
Control device, controls described gas heating assembly and described air-flow cooling package respectively for the temperature information fed back according to described device for detecting temperature.
2. combination loading test unit according to claim 1, is characterized in that, also comprise:
First linear module (3), is slidably arranged in the upper surface of described test platform (1) along the upper surface direction being parallel to described test platform (1);
Second linear module (4), edge is parallel to the upper surface of the upper surface direction slip described first linear module (3) of described test platform (1), glide direction is vertical with the glide direction of the described first linear module (3), and described testpieces (2) is arranged on the described second linear module (4) upper surface.
3. combination loading test unit according to claim 2, it is characterized in that, described first linear module (3) is slidably arranged in the upper surface of described test platform (1) by the first slide rail, and is driven by the first drive unit;
Described second linear module (4) is slidably arranged in the upper surface of the described first linear module (3) by the second slide rail, and is driven by the second drive unit.
4. combination loading test unit according to claim 3, is characterized in that, described first drive unit and described second drive unit are motor;
The temperature information of described control device also for feeding back according to described device for detecting temperature controls described motor.
5. combination loading test unit according to claim 2, is characterized in that, also comprise:
Universal stage (5), bottom is fixedly installed the described second linear module (4) upper surface, top is fixedly connected with described testpieces (2), described universal stage (5) has the rotation perpendicular to the described second linear module (4) upper surface, rotates around described rotation for driving described testpieces (2);
The temperature information rotation to described universal stage (5) of described control device also for feeding back according to described device for detecting temperature controls.
6. the combination loading test unit according to any one of claim 1-5, is characterized in that, described gas heating assembly has gas gun (6), and described gas gun (6) is arranged on described test platform (1);
Described air-flow cooling package has air cooling spout (7), and described air cooling spout (7) is arranged on described test platform (1).
7. combination loading test unit according to claim 6, it is characterized in that, described gas gun (6) regulates support (8) to be arranged on described test platform (1) by first, and described first regulates support (8) for regulating the spout direction of described gas gun (6);
Described air cooling spout (7) regulates support (9) to be arranged on described test platform (1) by second, and described second regulates support (9) for regulating the direction of described air cooling spout (7).
8. combination loading test unit according to claim 7, is characterized in that, described gas heating assembly also comprises:
Oxygen gas cylinder (10), described oxygen gas cylinder (10) is communicated with described gas gun (6) by the first reduction valve (11), first-class gauge (12) and the first variable valve (13) successively;
Combustion gas gas cylinder (14), described combustion gas gas cylinder (14) is communicated with described gas gun (14) by the second reduction valve (15), second gauge (16) and the second variable valve (17) successively.
9. combination loading test unit according to claim 7, it is characterized in that, described air-flow cooling package also comprises refrigerating gas storage tank (18), and manually variable valve (19), filtrator (20), precise pressure-reducing valve (21), solenoid valve (22) and flow controller (23) are communicated with described air cooling spout (7) described refrigerating gas storage tank (18) successively.
CN201510931955.3A 2015-12-13 2015-12-13 Combined loading test device Pending CN105571968A (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106678796A (en) * 2016-11-16 2017-05-17 中国北方发动机研究所(天津) Special combustor for thermal fatigue testing of heated elements of internal combustion engine
CN106769133A (en) * 2016-12-02 2017-05-31 哈尔滨工业大学 A kind of the atomized water spray pilot system and its application method of test flight device hot junction portion structure part thermal shock resistance
CN108020480A (en) * 2016-10-28 2018-05-11 天津台信检测技术有限公司 A kind of automobile metal component high/low-temperature impact test and experiment device
CN108088869A (en) * 2017-11-30 2018-05-29 中国航空工业集团公司沈阳飞机设计研究所 A kind of thermal protection system Heat-Insulation Test device
CN108204994A (en) * 2018-01-17 2018-06-26 长沙理工大学 A kind of material thermal shock resistance examination test device of superhigh temperature controlled atmosphere
CN108225854A (en) * 2017-12-29 2018-06-29 江苏汇环环保科技有限公司 A kind of VOC monitors double pump Ngatively pressurized sampling system on-line
CN108426694A (en) * 2018-02-09 2018-08-21 哈尔滨工业大学 The simulator and analogy method of space junk high-speed impact thermal protection structure
CN109738298A (en) * 2018-12-15 2019-05-10 内蒙动力机械研究所 A kind of ablation property test macro of heat-insulating material test specimen
CN110793912A (en) * 2019-10-28 2020-02-14 西北工业大学 Gas heating ultra-high temperature environment test system

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JPH10170421A (en) * 1996-12-13 1998-06-26 Ishikawajima Harima Heavy Ind Co Ltd Method and device for testing thermal shock
CN201340372Y (en) * 2009-01-08 2009-11-04 四川成发航空科技股份有限公司 Coating thermal-shock test equipment
CN103487345A (en) * 2013-10-12 2014-01-01 中国科学院上海硅酸盐研究所 High-temperature flame flow device for dynamically and cyclically testing thermal shock resistance of thermal barrier coating
CN104181190A (en) * 2014-08-27 2014-12-03 北京航空航天大学 Testing platform for fire resistance of large revolving body
CN104897714A (en) * 2015-04-29 2015-09-09 东方电气集团东方汽轮机有限公司 Gas turbine thermal barrier coating efficient-thermal cycle performance testing apparatus and testing method thereof

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Publication number Priority date Publication date Assignee Title
JPH10170421A (en) * 1996-12-13 1998-06-26 Ishikawajima Harima Heavy Ind Co Ltd Method and device for testing thermal shock
CN201340372Y (en) * 2009-01-08 2009-11-04 四川成发航空科技股份有限公司 Coating thermal-shock test equipment
CN103487345A (en) * 2013-10-12 2014-01-01 中国科学院上海硅酸盐研究所 High-temperature flame flow device for dynamically and cyclically testing thermal shock resistance of thermal barrier coating
CN104181190A (en) * 2014-08-27 2014-12-03 北京航空航天大学 Testing platform for fire resistance of large revolving body
CN104897714A (en) * 2015-04-29 2015-09-09 东方电气集团东方汽轮机有限公司 Gas turbine thermal barrier coating efficient-thermal cycle performance testing apparatus and testing method thereof

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108020480A (en) * 2016-10-28 2018-05-11 天津台信检测技术有限公司 A kind of automobile metal component high/low-temperature impact test and experiment device
CN106678796A (en) * 2016-11-16 2017-05-17 中国北方发动机研究所(天津) Special combustor for thermal fatigue testing of heated elements of internal combustion engine
CN106769133A (en) * 2016-12-02 2017-05-31 哈尔滨工业大学 A kind of the atomized water spray pilot system and its application method of test flight device hot junction portion structure part thermal shock resistance
CN108088869A (en) * 2017-11-30 2018-05-29 中国航空工业集团公司沈阳飞机设计研究所 A kind of thermal protection system Heat-Insulation Test device
CN108225854A (en) * 2017-12-29 2018-06-29 江苏汇环环保科技有限公司 A kind of VOC monitors double pump Ngatively pressurized sampling system on-line
CN108225854B (en) * 2017-12-29 2020-03-31 江苏汇环环保科技有限公司 VOC on-line monitoring double-pump negative pressure sampling system
CN108204994A (en) * 2018-01-17 2018-06-26 长沙理工大学 A kind of material thermal shock resistance examination test device of superhigh temperature controlled atmosphere
CN108426694A (en) * 2018-02-09 2018-08-21 哈尔滨工业大学 The simulator and analogy method of space junk high-speed impact thermal protection structure
CN109738298A (en) * 2018-12-15 2019-05-10 内蒙动力机械研究所 A kind of ablation property test macro of heat-insulating material test specimen
CN110793912A (en) * 2019-10-28 2020-02-14 西北工业大学 Gas heating ultra-high temperature environment test system

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Application publication date: 20160511