CN106066342A - A kind of thermal protection test method for aircraft test piece level sample - Google Patents
A kind of thermal protection test method for aircraft test piece level sample Download PDFInfo
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- CN106066342A CN106066342A CN201610352576.3A CN201610352576A CN106066342A CN 106066342 A CN106066342 A CN 106066342A CN 201610352576 A CN201610352576 A CN 201610352576A CN 106066342 A CN106066342 A CN 106066342A
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- thermal protection
- pressing plate
- plate valve
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
Abstract
A kind of thermal protection test method for aircraft test piece level sample, portable thermal protection assay device is used to implement operation, first high heat capacity block and thermal source are placed in trial furnace, thermocouple is installed in the thermal source pressing close to sample to be tested side simultaneously, by fixation clip, sample to be tested is fixed on the entrance of trial furnace again, pressing plate valve is arranged on fixation clip, then multiple temperature sensors is respectively adhered on sample to be tested；After treating that portable thermal protection assay device assembles, shutting the fire door of trial furnace, the power supply connecting thermal source begins to warm up；After the temperature of stove to be tested rises to predetermined temperature, opening pressing plate valve, sample to be tested is pushed into from side the fire door of trial furnace, tested sample fixed by pressure pressing plate valve down, starts the data of collecting temperature sensor after the several seconds；Then it is again turned on pressing plate valve, unloads this sample to be tested, start test next time；Simple in construction, simple operation, efficiently solve the problem more difficult than exemplar thermal protection test to test piece level sample/contracting.
Description
Technical field
The present invention relates to thermal protection experimental technique field, particularly relate to a kind of thermal protection for aircraft test piece level sample
Test method.
Background technology
Supersonic vehicle is in atmosphere during flight, and its outer surface is easily by stronger Aerodynamic Heating effect, for ensureing flight
Device security performance, it is necessary to take effective thermal protection measure, and in order to simulate Aerodynamic Heating really, need surface function over the ground
Property test carry out the verification experimental verification close to time of day.Low cost, effective thermal protection test are effects heat insulation to thermal protection scheme
Fruit carries out verifying, its thermodynamic property being estimated an indispensable important step；Meanwhile, add based on quartz lamp radiation
Heat thermal protection test method, based on graphite radiation heating thermal protection test method and add based on high-temperature high-pressure fuel gas convection current
Cabin section level and full bullet thermal protection test are relatively had superiority by the thermal protection test method of heat；But to test piece level sample/contracting than exemplar heat
For the preliminary analysis of protection test scheme and demonstration, exist to varying degrees experimentation cost height, apparatus expensive, cycle length,
The problems such as preparation is complicated, fragile.
Summary of the invention
Technical problem solved by the invention is to provide a kind of thermal protection test side for aircraft test piece level sample
Method, to solve the shortcoming in above-mentioned background technology.
Technical problem solved by the invention realizes by the following technical solutions:
A kind of thermal protection test method for aircraft test piece level sample, uses portable thermal protection assay device to implement to make
Industry, portable thermal protection assay device includes pressing plate valve, temperature sensor, high heat capacity block, thermal source, fixation clip and trial furnace,
Specifically comprise the following steps that
1) assemble portable thermal protection assay device, first high heat capacity block and thermal source be placed in trial furnace, simultaneously press close to be measured
Installation thermocouple in the thermal source of sample side, then by fixation clip, sample to be tested is fixed on the entrance of trial furnace, pressing plate valve
It is arranged on fixation clip, then multiple temperature sensors is respectively adhered on sample to be tested, finally unify temperature sensing
Device cable boundling；
2) after treating that in step 1), portable thermal protection assay device assembles, shut the fire door of trial furnace, connect the electricity of thermal source
Source begins to warm up, and temperature offers predetermined value, heat time heating time 4min～8 min；
3), after the temperature of stove to be tested rises to predetermined temperature, open pressing plate valve, sample to be tested is pushed into trial furnace from side
Fire door, tested sample fixed by pressure pressing plate valve down, starts the data of collecting temperature sensor after the several seconds；
4) after treating that in step 3), temperature sensor data gathers, it is again turned on pressing plate valve, unloads this sample to be tested, then will
Another group sample to be tested is laterally pushed into the fire door of trial furnace, starts new round test.
In the present invention, in described step 1), the front of sample to be tested, the back side and the inner side of sample to be tested thermal insulation layer and outer
Side is separately installed with temperature sensor.
In the present invention, in described step 1), thermal source is electrical bar, and high heat capacity block is high heat capacity medium iron block, to ensure
Sample to be tested warming face temperature reaches design temperature in moment；Meanwhile, change the outfit sample to be tested time, it is ensured that sample to be tested heat
Temperature fluctuation amplitude in front is in presetting scope.
In the present invention, in described step 1), fixation clip is provided with sealing strip, to ensure that sample to be tested is installed smoothly
In the fire door of trial furnace and ensure heat seal.
In the present invention, in described step 1), fixation clip is provided with two pressing plate valves.
In the present invention, in described step 3), lower pressure pressing plate valve is fixed tested sample and is started collecting temperature sensing after 30 seconds
The data of device.
Beneficial effect: present configuration is simple, simple operation, efficiently solves and prevents test piece level sample/contracting than exemplar heat
Protect the problem that test is difficult, not only increase work efficiency, also allow for routine use and maintenance simultaneously, reduce further frock
Manufacturing cost；And test data is accurately and reliably, practicality is preferable, it is easy to popularization and application.
Accompanying drawing explanation
Fig. 1 is the structural representation of presently preferred embodiments of the present invention.
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and be easy to understand with effect, below knot
Conjunction is specifically illustrating, and the present invention is expanded on further.
A kind of thermal protection test method for aircraft test piece level sample, uses portable thermal protection as shown in Figure 1
Assay device implements operation, and portable thermal protection assay device includes pressing plate valve 1, temperature sensor 2, thermocouple 3, sample to be tested
4, high heat capacity block 5, thermal source 6, fixation clip 7 and trial furnace 8, uses following steps to carry out thermal protection test:
1) assemble portable thermal protection assay device, first high heat capacity block 5 and thermal source 6 are placed in trial furnace 8, pressing close to treat simultaneously
Thermocouple 3 is installed in the thermal source 6 of test specimens 4 side, then by fixation clip 7, sample to be tested 4 is fixed on trial furnace 8 entrance,
Pressing plate valve 1 is arranged on fixation clip 7, and pressing plate valve 1 is used for being turned on and off fixation clip 7, then by multiple temperature sensors 2 points
It is not pasted onto the front of sample to be tested 4, the back side and the inner side and outer side of sample to be tested 4 thermal insulation layer, finally unifies temperature sensing
Device 2 cable boundling；
2) after treating that in step 1), portable thermal protection assay device assembles, shut trial furnace 8 fire door, connect the electricity of thermal source 6
Source begins to warm up, and temperature offers predetermined value, heat time heating time 5min；
3) after temperature rises to predetermined temperature, open pressing plate valve 1, sample to be tested 4 is pushed into from side the stove of trial furnace 8
Mouthful, pressure pressing plate valve 1 down, to start collecting temperature sensor 2 data after fixing tested sample 4,30 seconds；
4), after treating step 3) tests Data Detection, it is again turned on pressing plate valve 1, unloads this sample to be tested 4, then by another
Group sample to be tested 4 laterally pushes the fire door of trial furnace 8, starts new round test.
In the present embodiment, thermal source 6 uses electrical bar to heat, and high heat capacity block 5 uses high heat capacity medium iron block, to ensure to treat
Test specimens 4 warming face temperature reaches design temperature in moment (less than 30s)；Meanwhile, change the outfit sample to be tested 4 time, it is ensured that treat
Test specimens 4 warming face temperature fluctuation amplitude is in presetting scope.
In the present embodiment, fixation clip 7 is provided with sealing strip, to ensure that sample to be tested 4 is installed on trial furnace 8 smoothly
Fire door and ensure heat seal.
The ultimate principle of the present invention and principal character and advantages of the present invention have more than been shown and described.The technology of the industry
Personnel, it should be appreciated that the present invention is not restricted to the described embodiments, simply illustrating this described in above-described embodiment and description
The principle of invention, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, and these become
Change and improvement both falls within scope of the claimed invention.Claimed scope by appending claims and
Equivalent defines.
Claims (7)
1. the thermal protection test method for aircraft test piece level sample, it is characterised in that use portable thermal protection examination
Experiment device implements operation, and portable thermal protection assay device includes pressing plate valve, temperature sensor, high heat capacity block, thermal source, fixing pressure
Plate and trial furnace, specifically comprise the following steps that
1) assemble portable thermal protection assay device, first high heat capacity block and thermal source be placed in trial furnace, simultaneously press close to be measured
Installation thermocouple in the thermal source of sample side, then by fixation clip, sample to be tested is fixed on the entrance of trial furnace, pressing plate valve
It is arranged on fixation clip, then multiple temperature sensors is respectively adhered on sample to be tested, finally unify temperature sensing
Device cable boundling；
2) after treating that in step 1), portable thermal protection assay device assembles, shut the fire door of trial furnace, connect the electricity of thermal source
Source begins to warm up, and temperature offers predetermined value, heat time heating time 4min～8 min；
3), after the temperature of stove to be tested rises to predetermined temperature, open pressing plate valve, sample to be tested is pushed into trial furnace from side
Fire door, tested sample fixed by pressure pressing plate valve down, starts the data of collecting temperature sensor after the several seconds；
4) after treating that in step 3), temperature sensor data gathers, it is again turned on pressing plate valve, unloads this sample to be tested, then will
Another group sample to be tested is laterally pushed into the fire door of trial furnace, starts new round test.
A kind of thermal protection test method for aircraft test piece level sample the most according to claim 1, it is characterised in that
In described step 1), the inner side and outer side of the front of sample to be tested, the back side and sample to be tested thermal insulation layer is separately installed with temperature and passes
Sensor.
A kind of thermal protection test method for aircraft test piece level sample the most according to claim 1, it is characterised in that
In described step 1), thermal source is electrical bar.
A kind of thermal protection test method for aircraft test piece level sample the most according to claim 1, it is characterised in that
In described step 1), high heat capacity block is high heat capacity medium iron block.
A kind of thermal protection test method for aircraft test piece level sample the most according to claim 1, it is characterised in that
In described step 1), fixation clip is provided with sealing strip.
A kind of thermal protection test method for aircraft test piece level sample the most according to claim 1, it is characterised in that
In described step 1), fixation clip is provided with two pressing plate valves.
A kind of thermal protection test method for aircraft test piece level sample the most according to claim 1, it is characterised in that
In described step 3), lower pressure pressing plate valve is fixed tested sample and is started the data of collecting temperature sensor after 30 seconds.
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| CN201610352576.3A CN106066342A (en) | 2016-05-25 | 2016-05-25 | A kind of thermal protection test method for aircraft test piece level sample |
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| CN201610352576.3A CN106066342A (en) | 2016-05-25 | 2016-05-25 | A kind of thermal protection test method for aircraft test piece level sample |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109142085A (en) * | 2018-10-10 | 2019-01-04 | 哈尔滨工业大学 | A kind of thermal protection on-line analysis system and method based on dynamic data driving |
| CN109856177A (en) * | 2017-11-30 | 2019-06-07 | 中国飞机强度研究所 | A kind of aircraft protective cover thermal release experimental rig |
| CN113460330A (en) * | 2021-07-07 | 2021-10-01 | 深圳市云熙消防工程有限公司 | Visual aerospace craft thermal protection part testing device |
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| CN202002747U (en) * | 2011-03-16 | 2011-10-05 | 北京航空航天大学 | High-temperature measuring device for surface of nonmetal heat-proof material plane test piece of high-supersonic aircrafts |
| CN102879423A (en) * | 2012-10-09 | 2013-01-16 | 北京航空航天大学 | Single-side high-temperature testing device of hypersonic aircraft material in 1800-degree aerobic environment |
| EP2685249A1 (en) * | 2012-07-12 | 2014-01-15 | ABB Research Ltd. | Method and device for detecting abnormal heat emission in an industrial process |
| CN203811565U (en) * | 2014-05-06 | 2014-09-03 | 江西洪都航空工业集团有限责任公司 | Heat-insulating property testing device |
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Patent Citations (6)
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| US4095453A (en) * | 1977-02-25 | 1978-06-20 | E. I. Du Pont De Nemours And Company | Differential thermal analysis cell |
| CN101526424A (en) * | 2008-03-06 | 2009-09-09 | 通用电气公司 | A system and a method for detecting gas turbine blade or aircraft engine blade problems in real time |
| CN202002747U (en) * | 2011-03-16 | 2011-10-05 | 北京航空航天大学 | High-temperature measuring device for surface of nonmetal heat-proof material plane test piece of high-supersonic aircrafts |
| EP2685249A1 (en) * | 2012-07-12 | 2014-01-15 | ABB Research Ltd. | Method and device for detecting abnormal heat emission in an industrial process |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109856177A (en) * | 2017-11-30 | 2019-06-07 | 中国飞机强度研究所 | A kind of aircraft protective cover thermal release experimental rig |
| CN109856177B (en) * | 2017-11-30 | 2021-04-20 | 中国飞机强度研究所 | Aircraft safety cover thermal separation test device |
| CN109142085A (en) * | 2018-10-10 | 2019-01-04 | 哈尔滨工业大学 | A kind of thermal protection on-line analysis system and method based on dynamic data driving |
| CN109142085B (en) * | 2018-10-10 | 2019-07-26 | 哈尔滨工业大学 | A kind of thermal protection on-line analysis system and method based on dynamic data driving |
| CN113460330A (en) * | 2021-07-07 | 2021-10-01 | 深圳市云熙消防工程有限公司 | Visual aerospace craft thermal protection part testing device |
| CN113460330B (en) * | 2021-07-07 | 2023-05-12 | 辽宁欣海弘业航空科技有限公司 | Visual aerospace is thermal protection part testing arrangement for aircraft |
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Application publication date: 20161102 |