CN202393750U - Dynamic oxidizing ablation test device simulating engine combustion chamber environment - Google Patents
Dynamic oxidizing ablation test device simulating engine combustion chamber environment Download PDFInfo
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- CN202393750U CN202393750U CN2011203999673U CN201120399967U CN202393750U CN 202393750 U CN202393750 U CN 202393750U CN 2011203999673 U CN2011203999673 U CN 2011203999673U CN 201120399967 U CN201120399967 U CN 201120399967U CN 202393750 U CN202393750 U CN 202393750U
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- combustion chamber
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- engine combustion
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- oxidizing
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Abstract
A dynamic oxidizing ablation test device simulating engine combustion chamber environment belongs to the technical field of engineering materials, structure deformation and mechanical experiment. The test device comprises a simulation combustion chamber, an oxyacetylene heating device, an intelligent water feeding control system, a humidity measuring system, a temperature measuring system, an image collection processing system and a sample clamping device. The dynamic oxidizing ablation test device designs a closed cavity simulating the engine combustion chamber environment, utilizes the intelligent water feeding control system to feed water to simulate humidity condition of the engine combustion chamber, utilizes an oxygen pressure dividing control system to simulate oxidizing condition of the engine combustion chamber, simultaneously combines a heating device and a high speed video camera, and is capable of simulating dynamic oxidizing ablation under the engine combustion chamber environment. The dynamic oxidizing ablation test device is capable of achieving real-time observation of the oxidizing ablation process of materials and quantitative analysis of material performance.
Description
Technical field
The utility model relates to a kind of dynamic oxidation ablation proving installation of simulated engine combustion chamber environment, belongs to construction material, structural deformation and Experiments of Machanics technical field.
Background technology
Engine is the core component of aircraft, is one of deciding factor of aircraft maneuverability, voyage, reliability, economy and environmental impact.The aeromotor Service Environment is abominable, factors complex, and there is coupling effect in material to the response of environment, rather than the stack of single environment exercising result.For this reason; Various countries in corresponding great investigation of materials in the works; All the environmental performance of material is simulated as main contents; Aircraft as the U.S. formulated in 1988 is united environmental performance sign and the database that the advanced hot machine ceramic technology plan of formulation and the advanced material plan (AMG) of the following turbodynamo that Japan formulated in 1993 etc. all coincidentally require to set up material with compound substance plan, nineteen ninety NASA, DOE and DoD; And at first developed the environmental simulation method, comprising experimental simulation and numerical simulation two aspects.
Aspect experimental simulation, have two kinds of schemes at present: first kind is to adopt loopful border factorial experiments, directly obtains the test findings of material.Although loopful border analogy method and equipment more and more approach true environment, shortcoming is also obvious, and that is exactly that the investment of analog machine and the cost of environment certification test rise at double.Second kind is from environment and interactional physics of material and chemical nature, development novel analog theory and experimental technique.The characteristics of these schemes are to be foundation with the environmental control factor of material damage and destruction and material property controlling factor, factor simulation in loopful border are reduced to the experimental simulation of controlling factor.Develop the alternative high-temperature tunnel of stand combustion gas simulator like the NASALewiS research centre and come the oxidation corrosion weight change of research material in the combustion gas environment, saved a large amount of experimental expensess.Germany Hambury-Harburg technology university utilizes camera head that the high-temperature stability of CMC is studied, and the real-time monitored crack propagation is gathered and deal with data.California Institute of Technology utilizes the high-speed CCD camera with the speed acquisition images of ten thousand width of cloth/seconds, the dynamic expansion process of research material crackle etc.Because environmental control factor and material property controlling factor understanding to material damage and destruction are unclear, the present various simple and easy analogue experiment method of setting up all has certain limitation.Therefore, the experimental simulation method in loopful border still occupies than critical positions.It is the thermo-lag key factor of decision engine that the dynamic oxidation of chamber structure material under the engine combustion environment ablated; How to obtain dynamic evolutionary process and the evolution mechanism of material under high temperature complicated coupling environment to further improvement material structure, improving the material military service performance also is to play crucial effects.
The utility model content
The purpose of the utility model provides a kind of dynamic oxidation ablation proving installation of simulated engine combustion chamber environment, and this device can be realized oxidation and the ablation experiments of material under the simulated engine environment, observes to obtain the dynamic process that sample surfaces is ablated and developed.
The technical scheme of the utility model is following:
A kind of dynamic oxidation ablation proving installation of simulated engine combustion chamber environment is characterized in that: this proving installation comprises that simulated combustion chamber, oxy-acetylene heating arrangement, intelligence add water control system, humidity measurement system, temperature measurement system, image collection processing system and sample clamping device; Said intelligence adds water control system and comprises sprayer, perforated water spray and intelligent watering controller, and sprayer is connected with intelligent watering controller through signal wire respectively with perforated water spray; Said humidity measurement system comprises humidity sensor and humidity measuring apparatus, and humidity sensor is connected with humidity measuring apparatus through signal wire; Said image capturing system comprises first computing machine and the light source of first high-speed camera that has filter plate, second high-speed camera that has filter plate, two high-speed cameras of control; Two high-speed cameras lay respectively at the both sides of simulated combustion chamber; And through the first high quartz glass window and the second high quartz glass window sample both sides ablation process carrying out record respectively, trigger of two high-speed cameras warps is by the first computer realization synchro control simultaneously; Said temperature measurement system comprises first infrared thermometer, second infrared thermometer and controls second computing machine of two infrared thermometers; Trigger of two infrared thermometer warps is seen through the first high quartz glass window and the second high quartz glass window respectively and is realized the record to sample both side surface ablation temperature by the second computer realization synchro control; Two high-speed cameras and two infrared thermometers all are placed on the oxidation ablation experiment table.
The described sample clamping device of the utility model comprises guide rail, support bar and anchor clamps, and guide rail is fixed on the bottom of simulated combustion chamber; Support bar is connected with guide rail, slides along guide rail.
The another technical characterictic of the utility model is: the dynamic oxidation ablation proving installation of described simulated engine combustion chamber environment also comprises the oxidation ablation experiment table, and the simulated combustion chamber is fixed on the oxidation ablation experiment table; First high-speed camera, second high-speed camera, first infrared thermometer and second infrared thermometer are placed on the oxidation ablation experiment table through tripod respectively.
The utility model compared with prior art; Have the following advantages and the high-lighting effect: the closed chamber that has designed the simulated engine combustion chamber environment; Can realize the control of water vapour simulation and partial pressure of oxygen, simultaneously high-speed photography and temperature survey united synchronously, can real-time monitored write down the oxidation ablation mechanism of material under the specified temp; Through slowing down the ablation process animation that high-speed photography obtains, the process that clear observation and analytic sample oxide on surface generate, flow, develop.The utility model has been realized under the laboratory condition simulation to the engine combustion room environmental, for the oxidation ablation behavior of research material provides a new experimental provision and experiment porch.
Description of drawings
The structural principle synoptic diagram of the dynamic oxidation ablation proving installation of a kind of simulated engine combustion chamber environment that Fig. 1 provides for the utility model.
Among the figure: 1-dynamic oxidation ablation experiments platform; 2-simulated combustion chamber; 3a-first high-speed camera; 3b-second takes the photograph 3b at a high speed; 4a-first filter plate; The 4b-second filter plate 4b; 5a-first infrared thermometer; 5b-second infrared thermometer; The 6-support; The 7-rubber band; 8-oxy-acetylene heating arrangement; The 9-guide rail; The 9a-support bar; The 10-anchor clamps; The 11-sample; The 12-sprayer; The 13-perforated water spray; 14-intelligence watering controller; The 15-humidity sensor; The 16-humidity measuring apparatus; 17-first computing machine; 18-second computing machine; The 19-light source; The 20a-first high quartz glass; The 20b-second high quartz glass; 21-partial pressure of oxygen control system.
Embodiment
Further specify concrete structure, the course of work and the embodiment of the utility model below in conjunction with accompanying drawing.
Fig. 1 is a kind of structural principle synoptic diagram of dynamic oxidation ablation proving installation of simulated engine combustion chamber environment, and this proving installation comprises that simulated combustion chamber 2, oxy-acetylene heating arrangement 8, intelligence add water control system, humidity measurement system, temperature measurement system, image collection processing system and sample clamping device; Said intelligence adds water control system and comprises sprayer 12, perforated water spray 13 and intelligent watering controller 14, and sprayer 12 is connected with intelligent watering controller 14 through signal wire respectively with perforated water spray 13; Said humidity measurement system comprises humidity sensor 15 and humidity measuring apparatus 16, and humidity sensor 15 is connected with humidity measuring apparatus 16 through signal wire; Said image capturing system comprises first computing machine 17 and the light source 19 of the first high-speed camera 3a that has filter plate, the second high-speed camera 3b that has filter plate, two high-speed cameras of control; Two high-speed cameras lay respectively at the both sides of simulated combustion chamber; And through the first high quartz glass window 20a and the second high quartz glass window 20b ablation process of sample 11 both sides carrying out record respectively, first computing machine is realized synchro control via a trigger to two high-speed cameras simultaneously; Said temperature measurement system comprises the first infrared thermometer 5a, the second infrared thermometer 5b and controls second computing machine 18 of two infrared thermometers; Trigger of two infrared thermometer warps is seen through the first high quartz glass window 20a and the second high quartz glass window 20b respectively and is realized the record to sample 11 both side surface ablation temperatures by the second computer realization synchro control.Two high-speed cameras and two infrared thermometers all are placed on the oxidation ablation experiment table 1.The sample clamping device comprises guide rail 9, support bar 9a and anchor clamps 10, and guide rail is fixed on the bottom of simulated combustion chamber 2; Support bar is connected with guide rail, slides along guide rail, realizes the control of the distance of ablation flame and sample surfaces.The dynamic oxidation ablation proving installation of described simulated engine combustion chamber environment also comprises oxidation ablation experiment table 1, and the simulated combustion chamber is fixed on the oxidation ablation experiment table; First high-speed camera, second high-speed camera, first infrared thermometer and second infrared thermometer are placed on the oxidation ablation experiment table through tripod respectively.
The course of work of said apparatus is following:
1) before ablating, utilize two high-speed cameras to take the image that obtains sample two surfaces at normal temperatures, as the initial analysis image;
2) surface through 8 pairs of samples 11 of oxy-acetylene heating arrangement adds thermal ablation, opens intelligent watering controller 14 simultaneously, and selection is dripped or spray pattern adds water;
3) after the humidity of treating simulated combustion chamber 2 reaches requirement of experiment; Two high-speed cameras begin to take in real time synchronously, and two temperature measuring sets also carry out the real time temperature measurement synchronously simultaneously, and the initial shooting of record and the thermometric moment; Carry out after a period of time shooting, stop to take; Wherein, the course of reaction at the first high-speed camera real time record ablation face back side, the course of reaction that the second high-speed camera real time record ablation face is positive;
4) experiment finishes, and closes oxyacetylene torch, stops the first high-speed camera 3a, second high-speed camera 3b shooting, the first infrared thermometer 5a and the second infrared thermometer 5b and measures, and stop to add water and moisture measurement;
5) utilize the ablation pattern at the sample back side that Digital Image Correlation Method collects first high-speed camera to compare analyzing and processing, calculate the ess-strain after sample is ablated with the image that initially obtains; The image of second high-speed camera being taken the positive changed ablation process of sample that obtains carries out observation analysis, obtains the dynamic process that sample surfaces is ablated and developed.
Claims (3)
1. the dynamic oxidation ablation proving installation of a simulated engine combustion chamber environment, it is characterized in that: this proving installation comprises that simulated combustion chamber (2), oxy-acetylene heating arrangement (8), intelligence add water control system, humidity measurement system, temperature measurement system, image collection processing system and sample clamping device; Said intelligence adds water control system and comprises sprayer (12), perforated water spray (13) and intelligent watering controller (14), and sprayer (12) is connected with intelligent watering controller (14) through signal wire respectively with perforated water spray (13); Said humidity measurement system comprises humidity sensor (15) and humidity measuring apparatus (16), and humidity sensor (15) is connected with humidity measuring apparatus (16) through signal wire; Said image capturing system comprises first computing machine (17) and the light source (19) of first high-speed camera (3a) that has filter plate, second high-speed camera (3b) that has filter plate, two high-speed cameras of control; Two high-speed cameras lay respectively at the both sides of simulated combustion chamber; And through the first high quartz glass window (20a) and the second high quartz glass window (20b) sample (11) both sides ablation process carrying out record respectively, trigger of two high-speed cameras warps is by the first computer realization synchro control simultaneously; Said temperature measurement system comprises second computing machine (18) of first infrared thermometer (5a), second infrared thermometer (5b) and two infrared thermometers of control; Trigger of two infrared thermometer warps is seen through the first high quartz glass window (20a) and the second high quartz glass window (20b) respectively and is realized the record to sample (11) both side surface ablation temperature by the second computer realization synchro control; Two high-speed cameras and two infrared thermometers all are placed on the oxidation ablation experiment table (1).
2. according to the dynamic oxidation ablation proving installation of the described simulated engine combustion chamber environment of claim 1, it is characterized in that: the sample clamping device comprises guide rail (9), support bar (9a) and anchor clamps (10), and guide rail is fixed on the bottom of simulated combustion chamber (2); Support bar is connected with guide rail, slides along guide rail.
3. according to the dynamic oxidation ablation proving installation of the described simulated engine combustion chamber environment of claim 1; It is characterized in that: the dynamic oxidation ablation proving installation of described simulated engine combustion chamber environment also comprises oxidation ablation experiment table (1), and the simulated combustion chamber is fixed on the oxidation ablation experiment table; First high-speed camera, second high-speed camera, first infrared thermometer and second infrared thermometer are placed on the oxidation ablation experiment table through tripod respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203999673U CN202393750U (en) | 2011-10-19 | 2011-10-19 | Dynamic oxidizing ablation test device simulating engine combustion chamber environment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011203999673U CN202393750U (en) | 2011-10-19 | 2011-10-19 | Dynamic oxidizing ablation test device simulating engine combustion chamber environment |
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| CN202393750U true CN202393750U (en) | 2012-08-22 |
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| CN2011203999673U Withdrawn - After Issue CN202393750U (en) | 2011-10-19 | 2011-10-19 | Dynamic oxidizing ablation test device simulating engine combustion chamber environment |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507849A (en) * | 2011-10-19 | 2012-06-20 | 清华大学 | Testing device and testing method for stimulaitng dynamic oxidation ablation of engine combustor environment |
| CN105699423A (en) * | 2016-03-10 | 2016-06-22 | 北京理工大学 | Device for testing fuel combustion performance of ramjet |
| CN105911214A (en) * | 2016-04-28 | 2016-08-31 | 芜湖美威包装品有限公司 | Flame resistance experimental device for foam |
| CN106872637A (en) * | 2017-01-16 | 2017-06-20 | 清华大学 | The dynamic oxidation ablation test device and method of simulated engine blade Service Environment |
| CN109163906A (en) * | 2018-09-21 | 2019-01-08 | 西北工业大学 | The Multi-functional analog engine of insulation erosion test |
| CN109239129A (en) * | 2018-09-30 | 2019-01-18 | 华南理工大学 | A kind of measuring device and method of precise measurement polymer sag performance |
| CN110596180A (en) * | 2019-08-18 | 2019-12-20 | 南京理工大学 | Ablation simulation fixing device for engine interstage protective material |
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2011
- 2011-10-19 CN CN2011203999673U patent/CN202393750U/en not_active Withdrawn - After Issue
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507849A (en) * | 2011-10-19 | 2012-06-20 | 清华大学 | Testing device and testing method for stimulaitng dynamic oxidation ablation of engine combustor environment |
| CN102507849B (en) * | 2011-10-19 | 2014-06-18 | 清华大学 | Testing device and testing method for stimulaitng dynamic oxidation ablation of engine combustor environment |
| CN105699423A (en) * | 2016-03-10 | 2016-06-22 | 北京理工大学 | Device for testing fuel combustion performance of ramjet |
| CN105699423B (en) * | 2016-03-10 | 2018-06-01 | 北京理工大学 | A kind of punching engine fuel combustion performance testing device |
| CN105911214A (en) * | 2016-04-28 | 2016-08-31 | 芜湖美威包装品有限公司 | Flame resistance experimental device for foam |
| CN106872637A (en) * | 2017-01-16 | 2017-06-20 | 清华大学 | The dynamic oxidation ablation test device and method of simulated engine blade Service Environment |
| CN109163906A (en) * | 2018-09-21 | 2019-01-08 | 西北工业大学 | The Multi-functional analog engine of insulation erosion test |
| CN109239129A (en) * | 2018-09-30 | 2019-01-18 | 华南理工大学 | A kind of measuring device and method of precise measurement polymer sag performance |
| CN110596180A (en) * | 2019-08-18 | 2019-12-20 | 南京理工大学 | Ablation simulation fixing device for engine interstage protective material |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120822 Effective date of abandoning: 20140618 |
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| RGAV | Abandon patent right to avoid regrant |