CN109115445B - Dynamic impact test device under high temperature environment - Google Patents
Dynamic impact test device under high temperature environment Download PDFInfo
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- CN109115445B CN109115445B CN201811044265.6A CN201811044265A CN109115445B CN 109115445 B CN109115445 B CN 109115445B CN 201811044265 A CN201811044265 A CN 201811044265A CN 109115445 B CN109115445 B CN 109115445B
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- heating
- impact test
- dynamic impact
- heating box
- temperature
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- 238000009863 impact test Methods 0.000 title claims abstract description 45
- 238000010438 heat treatment Methods 0.000 claims abstract description 132
- 238000012360 testing method Methods 0.000 claims abstract description 27
- 239000010453 quartz Substances 0.000 claims description 50
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 50
- 230000005855 radiation Effects 0.000 claims description 15
- 229910045601 alloy Inorganic materials 0.000 claims description 14
- 239000000956 alloy Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 11
- 239000011152 fibreglass Substances 0.000 claims description 8
- 229920000742 Cotton Polymers 0.000 claims description 5
- 239000003365 glass fiber Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 7
- 238000004088 simulation Methods 0.000 abstract description 3
- 230000004044 response Effects 0.000 abstract description 2
- 230000000630 rising effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000601 superalloy Inorganic materials 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/08—Shock-testing
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention belongs to the field of structural thermal strength and thermal environment ground simulation tests, and particularly relates to a dynamic impact test device under a high-temperature environment. The dynamic impact response of the structure under the high-temperature working state is simulated, the structure acts on the inside of the heating box body through the whole and local heating sources, the test piece, the tool and the box body are integrally installed and fixed on the dynamic impact table, and the non-contact measuring equipment is adopted to record the test process. The invention adopts full-closed heating, non-contact high-power intelligent heating source, can simulate the internal high-temperature environment of the ship gas turbine and the aircraft engine during working, and can control the direction of the aerodynamic heat environment and the temperature rising rate. And recording a dynamic impact test process in a high-temperature environment by using a non-contact infrared thermal imager, a three-dimensional DIC camera and a high-speed camera.
Description
Technical Field
The invention belongs to the field of structural thermal strength and thermal environment ground simulation tests, and particularly relates to a dynamic impact test device under a high-temperature environment.
Background
The internal structures of the engine and the gas turbine are faced with severe aerodynamic heat environments in the working state, even if various cooling measures are adopted, the temperature of the structural parts still reaches thousands of ℃, the severe high-temperature environment can cause the performance degradation of structural materials, and meanwhile, the thermal deformation and the thermal stress in the structures are caused, so that the strength limit of the whole machine materials and the bearing capacity of the structures are weakened, and further serious consequences such as structural deformation, surface pitting and the like are induced.
Besides normal working load, under the simultaneous action of working load and extreme impact load in a high-temperature environment, a very serious challenge is presented to the bearing capacity of key components, so that the impact resistance research of key structures in the high-temperature environment is deeply developed, and the method has important application value.
In this regard, the present invention is intended to design a dynamic impact test apparatus in a high temperature environment. The comprehensive test bed with parallel key component impact environment and high temperature environment is provided, and test guarantee conditions are provided for improving the impact resistance of components and the whole machine in a high temperature working state.
Disclosure of Invention
The invention provides a dynamic impact test device in a high-temperature environment, which can provide a parallel impact environment and a high-temperature environment of key components and provide test guarantee conditions for improving the impact resistance of the components and the whole machine in a high-temperature working state.
The aim of the invention is realized by the following technical scheme:
The dynamic impact test device comprises a dynamic impact test table, a heating box body, a heating system, a high-temperature-resistant alloy tool and a non-contact measuring device, wherein the four side surfaces and the top surface of the heating box body are respectively provided with an observation window, a high-temperature-resistant material is added between the heating box body and the dynamic impact test table, and the heating box body is fixed on the dynamic impact test table; the non-contact measuring device is respectively arranged outside the two side surfaces and the top surface of the heating box body; the high-temperature-resistant alloy tool is arranged in the heating box body and fixed on the bottom surface of the heating box body, and a test piece adopted in the test is fixedly arranged on the high-temperature-resistant alloy tool; the heating system comprises a fixed quartz lamp heating source and a movable local quartz lamp radiation heating source, wherein the fixed quartz lamp heating source is respectively arranged on the two side surfaces and the wall surface of the top surface in the heating box body, and the movable local quartz lamp radiation heating source is arranged in the heating box body.
The invention may further include:
The movable local quartz lamp radiation heating source comprises an adjustable horizontal quartz lamp heating source, an adjustable vertical quartz lamp heating source, a smooth guide rail and a side heating source; the square frame is formed by connecting two horizontal fixing blocks with two vertical fixing columns end to end; two smooth guide rails are arranged between two horizontal fixing blocks of each square frame; a local horizontal fixed block is arranged between the two smooth guide rails of one group of square frames, a local horizontal fixed block and two local vertical fixed blocks are arranged between the two smooth guide rails of the other group of square frames, an adjustable horizontal quartz lamp heating source is arranged between the two local horizontal fixed blocks of the two groups of square frames, and an adjustable vertical quartz lamp heating source is arranged between the two local vertical fixed blocks of the square frames; the side heating source consists of two local vertical fixing blocks and an adjustable vertical quartz lamp heating source arranged between the two local vertical fixing blocks; two ends of each group of side heating sources are respectively arranged on two guide rails of the two groups of square frames, and the two groups of side heating sources are parallel to each other.
The observation windows arranged on the four side surfaces and the top surface of the heating box body are high-temperature-resistant glass fiber reinforced plastic observation windows; the high-temperature-resistant material added between the heating box body and the dynamic impact test bed is high-temperature-resistant high-density glass fiber cotton.
The non-contact measuring device comprises an infrared thermal imager, a high-speed camera and a three-dimensional DIC camera, wherein the infrared thermal imager and the high-speed camera are arranged outside observation windows on two sides of the heating box, and the three-dimensional DIC camera is arranged outside the observation windows on the top surface of the heating box.
The invention has the beneficial effects that:
1. the full-closed heating environment is adopted, the fixed type quartz lamp and the adjustable type quartz lamp are adopted for radiating and heating the heat source, the high-efficiency heating of the whole internal environment of the box body and the local heating of the test sample piece are realized, the heating time is shortened, and the test efficiency is improved.
2. The heat insulation material is added between the heating box body and the dynamic impact table, and the internal temperature of the box body is placed to cause thermal influence on the impact test table surface, so that the safety of the test is ensured.
3. The three non-contact devices adopted by the invention have the advantages of high reliability, high precision and the like, and ensure accurate recording of the test process and the result.
4. The intelligent temperature control system adopted by the invention can independently control the heat sources of the quartz lamps one by one, and can simulate the temperature ranges and the heating rates under different working conditions.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a dynamic impact test apparatus in a high temperature environment.
FIG. 2 is a schematic diagram of a heating cabinet of a dynamic impact test apparatus in a high temperature environment.
FIG. 3 is a schematic diagram of a movable localized quartz lamp radiant heating heat source within a heating cabinet of a dynamic impact test apparatus in a high temperature environment.
Fig. 4 is a schematic diagram of a high-temperature alloy tool of a dynamic impact test device in a high-temperature environment.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Please refer to fig. 1. Wherein fig. 1 is a schematic diagram of the overall structure of the present invention, comprising: the device comprises a dynamic impact test bed 13, high-temperature-resistant high-density glass fiber cotton 1, a heating box 4, a high-temperature-resistant alloy tool 2, a high-speed camera 19, an adjustable horizontal quartz lamp heating source 12, an infrared thermal imager 18, a test piece 3, a three-dimensional DIC camera 20 and an adjustable vertical quartz lamp heating source 17. Wherein, high temperature resistant high density glass fiber cotton 1 is added between the heating box 4 and the impact test stand 13 to isolate heat transfer. The dynamic impact test stand provides impact load to the entire experimental set-up mounted thereon.
Please refer to fig. 2 and 3. Wherein fig. 2 is a schematic diagram of a heating box of the present invention, and fig. 3 is a movable local quartz lamp radiation heating source, comprising: the fixed quartz lamp radiation heating source 5, the horizontal fixed block 8, the vertical fixed column 9, the smooth guide rail 10, the local horizontal fixed block 11 and the local vertical fixed block 16. Wherein, the upper surface and the four side surfaces of the heating box body are provided with high temperature resistant glass fiber reinforced plastic observation windows 6; wherein the fixed quartz lamp radiation heating source is fixedly arranged with the heating box 4; wherein the horizontal fixing block, the vertical fixing column and the heating box body are fixedly arranged; wherein the smooth guide rail is arranged in the horizontal fixed block; wherein the adjustable horizontal quartz lamp heating source and the adjustable vertical quartz lamp heating source are arranged on the local horizontal fixed block and the local vertical fixed block; the local horizontal fixed block and the local vertical fixed block are arranged on the smooth guide rail and can be adjusted according to the requirements;
please refer to fig. 4. FIG. 4 is a schematic view of a fixture of the present invention, including a superalloy fixture and a test piece, wherein the superalloy fixture is fixed to an impact test stand, and the fixture angle can be adjusted according to different working conditions for impact test. In the test, a movable local quartz lamp radiation heating source is covered on a test piece.
The invention belongs to the field of structural thermal strength and thermal environment ground simulation tests, and particularly relates to a dynamic impact test device for a structure under a high-temperature environment. The dynamic impact response of the structure under the high-temperature working state is simulated, the structure acts on the inside of the heating box body through the whole and local heating sources, the test piece, the tool and the box body are integrally installed and fixed on the dynamic impact table, and the non-contact measuring equipment is adopted to record the test process. The structure of the invention is as follows: the dynamic impact test bed, the heating box body, the high-temperature-resistant glass fiber reinforced plastic observation window and the quartz lamp radiation heating source comprise the quartz lamp radiation heating source fixed on the inner wall of the heating box body, an adjustable quartz lamp radiation heating source in the heating box body, a high-temperature-resistant alloy tool and a high-temperature-resistant heat insulation layer. The lower part of the heating box is provided with a through hole, and the other five planes are provided with ultra-high temperature resistant glass fiber reinforced plastic observation windows. The invention adopts full-closed heating, non-contact high-power intelligent heating source, can simulate the internal high-temperature environment of the ship gas turbine and the aircraft engine during working, and can control the direction of the aerodynamic heat environment and the temperature rising rate. And recording a dynamic impact test process in a high-temperature environment by using a non-contact infrared thermal imager, a three-dimensional DIC camera and a high-speed camera.
The invention provides a closed heating box body which is fixed on a panel of a dynamic impact test bed, wherein a controllable intelligent quartz lamp is adopted to radiate a heating source in the box body, the heating source can set the temperature range, the heating rate and the like of the heating source according to different working conditions, and the dynamic impact test of a structure is realized in the state of the high temperature environment. It is another object of the present invention to provide a non-contact high temperature measurement device, and an intelligent temperature control system to record the test process.
The structure of the invention is as follows: a dynamic impact table; the heating box comprises five high-temperature-resistant glass fiber reinforced plastic observation windows, and the high-temperature-resistant glass fiber reinforced plastic observation windows are respectively provided with different non-contact measuring equipment for test process recording; the heating box body comprises a fixed quartz lamp radiation heating heat source and an adjustable quartz lamp radiation heating heat source for simulating the thermal environment of the test sample; a high-temperature-resistant alloy fixing tool is fixedly arranged on the surface of the impact test bed; high temperature resistant materials are added between the heating box body and the impact test table to isolate heat transfer to the impact table.
Furthermore, the quartz lamp radiant heating source is divided into a fixed type and an adjustable type, the fixed type quartz lamp radiant heating source is directly fixed on the inner wall of the box body, and a large-power quartz lamp tube with long length and large diameter is adopted to ensure the increase of the overall temperature in the heating box body. The adjustable local quartz lamp heating source is connected with the horizontal fixing seat and the vertical fixing column inside the heating box, and the local heating of the sample is carried out according to the size structure of the test sample, so that the surface and the internal temperature of the sample are rapidly improved.
Further, the non-contact type measuring equipment is located on the top surface observation window and the two side surface observation windows, and the non-contact type measuring equipment is respectively an infrared thermal imager, a high-speed video camera and a three-dimensional DIC camera.
Further, the high-temperature-resistant alloy tool fixedly installed with the impact table can be used for testing under different working conditions and under the condition of heating by adjusting the angle of the tool.
The dynamic impact test device in high temperature environment has a heating box with flange plate in the bottom and fixed to the impact test bed, and high temperature glass fiber reinforced plastic observing windows in the other five surfaces, with non-contact measuring equipment in the top and two side observing windows; the intelligent heating system comprises a fixed quartz lamp heating source, an adjustable vertical quartz lamp heating source and an adjustable horizontal quartz lamp heating source; a high-temperature resistant material is added between the heating box body and the dynamic impact test bed; the high-temperature resistant alloy tool, the heating box body and the dynamic impact test bed are directly connected and fixed in a threaded manner.
The high-temperature resistant alloy tool is in direct contact threaded connection with the dynamic impact test bed, high-temperature resistant materials are added on the surface of the dynamic impact test bed, and the heating box body is placed on the high-temperature resistant materials and is fixedly in threaded connection with the dynamic impact test bed.
The adjustable horizontal quartz lamp heating source and the adjustable vertical quartz lamp heating source are arranged on the smooth guide rail through the local horizontal fixing block and the local vertical fixing block, the smooth guide rail is arranged on the horizontal fixing block, and the horizontal fixing block and the vertical fixing column are fixed in the heating box body.
The non-contact measuring device is an infrared thermal imager, a high-speed camera and a three-dimensional DIC camera.
The high-temperature-resistant material is added between the heating box body and the dynamic impact test bed to be high-temperature-resistant high-density glass fiber cotton.
The intelligent heating system is characterized in that the fixed quartz lamp heating source, the adjustable vertical quartz lamp heating source and the adjustable horizontal quartz lamp heating source control the temperature and the heating rate of the temperature through the temperature control system
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (2)
1. The utility model provides a dynamic impact test device under high temperature environment, includes dynamic impact test platform, heating box, heating system, high temperature resistant alloy frock and non-contact measuring device, its characterized in that: the lower part of the heating box is provided with a through hole, four side surfaces and the top surface of the heating box are provided with observation windows, a high-temperature resistant material is added between the heating box and the dynamic impact test bed, and the heating box is fixed on the dynamic impact test bed; the non-contact measuring device is respectively arranged outside the two side surfaces and the top surface of the heating box body; the high-temperature-resistant alloy tool is arranged in the heating box body and fixed on the bottom surface of the heating box body, a test piece adopted in the test is fixedly arranged on the high-temperature-resistant alloy tool, the high-temperature-resistant alloy tool is fixed with the impact test stand, and the impact test can be carried out by adjusting the tool angle according to different working conditions; the heating system comprises a fixed quartz lamp heating source and a movable local quartz lamp radiation heating source, wherein the fixed quartz lamp heating source is respectively arranged on the two side surfaces of the heating box body and the wall surface of the top surface, and the movable local quartz lamp radiation heating source is arranged in the heating box body;
The movable local quartz lamp radiation heating source comprises an adjustable horizontal quartz lamp heating source, an adjustable vertical quartz lamp heating source, a smooth guide rail and a side heating source; the square frame is formed by connecting two horizontal fixing blocks with two vertical fixing columns end to end; two smooth guide rails are arranged between two horizontal fixing blocks of each square frame; a local horizontal fixed block is arranged between the two smooth guide rails of one group of square frames, a local horizontal fixed block and two local vertical fixed blocks are arranged between the two smooth guide rails of the other group of square frames, an adjustable horizontal quartz lamp heating source is arranged between the two local horizontal fixed blocks of the two groups of square frames, and an adjustable vertical quartz lamp heating source is arranged between the two local vertical fixed blocks of the square frames; the side heating source consists of two local vertical fixing blocks and an adjustable vertical quartz lamp heating source arranged between the two local vertical fixing blocks; two ends of each group of side heating sources are respectively arranged on two guide rails of the two groups of square frames, and the two groups of side heating sources are parallel to each other; the non-contact measuring device comprises an infrared thermal imager, a high-speed camera and a three-dimensional DIC camera, wherein the infrared thermal imager and the high-speed camera are arranged outside observation windows on two sides of the heating box, and the three-dimensional DIC camera is arranged outside the observation windows on the top surface of the heating box.
2. The dynamic impact test device under a high-temperature environment according to claim 1, wherein: the observation windows arranged on the four side surfaces and the top surface of the heating box body are high-temperature-resistant glass fiber reinforced plastic observation windows; the high temperature resistant material added between the heating box body and the dynamic impact test bed is high temperature resistant high density glass fiber cotton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811044265.6A CN109115445B (en) | 2018-09-07 | 2018-09-07 | Dynamic impact test device under high temperature environment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811044265.6A CN109115445B (en) | 2018-09-07 | 2018-09-07 | Dynamic impact test device under high temperature environment |
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| CN109115445A CN109115445A (en) | 2019-01-01 |
| CN109115445B true CN109115445B (en) | 2024-07-23 |
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| CN201811044265.6A Active CN109115445B (en) | 2018-09-07 | 2018-09-07 | Dynamic impact test device under high temperature environment |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111289555A (en) * | 2020-03-27 | 2020-06-16 | 中国北方车辆研究所 | Full-field test method for thermal fatigue load of friction plate |
| CN113654923B (en) * | 2021-06-29 | 2024-04-09 | 湖南科技大学 | Impact test control method for changing temperature and angle |
| CN116007881B (en) * | 2023-03-27 | 2023-06-13 | 徐州霍斯科技有限公司 | Anti-falling detection device for computer hardware |
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| KR20090109597A (en) * | 2008-04-16 | 2009-10-21 | 재단법인 포항산업과학연구원 | Apparatus for measuring thermal shock resistance of ceramics for recovery of waste heat |
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|---|---|---|---|---|
| CN102491220A (en) * | 2011-12-26 | 2012-06-13 | 济南华北升降平台制造有限公司 | Wall mounted lift |
| CN103217265A (en) * | 2013-04-09 | 2013-07-24 | 南京航空航天大学 | Vibration testing device by radiation heating of quartz lamp |
| CN205719093U (en) * | 2016-05-10 | 2016-11-23 | 成都康达电缆有限公司 | A kind of cable thermal cycle test equipment |
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