CN110553911A - Small-size complex-surface radome static test device - Google Patents
Small-size complex-surface radome static test device Download PDFInfo
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- CN110553911A CN110553911A CN201910692781.8A CN201910692781A CN110553911A CN 110553911 A CN110553911 A CN 110553911A CN 201910692781 A CN201910692781 A CN 201910692781A CN 110553911 A CN110553911 A CN 110553911A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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Abstract
The invention belongs to the technical field of aviation structure tests, and particularly relates to a small-size complex-surface radome static test device. The device comprises a base, a supporting component, a conversion component and an inflation component; the supporting component is fixed on the base and used for providing rigid support for the test piece; a vent hole is formed in a connecting area between the support assembly and the antenna housing root, and the vent hole is used for testing the pulling load test working condition of the test piece; the conversion assembly is used for testing the pressure load test working condition of the test piece, the top of the conversion assembly is provided with a vent hole, and the conversion assembly is fixed on the base during testing. The method can solve the problem that the small-size special-shaped curved surface radome cannot adopt a conventional static test method for product safety assessment, and can be used in the existing and future multi-type radomes.
Description
Technical Field
The invention belongs to the technical field of aviation structure tests, and particularly relates to a small-size complex-surface radome static test device.
Background
the static test is one of prerequisites for carrying out a flight test and design shaping after a developed antenna housing machine, and aims to verify whether the static strength of the structure meets the design requirement, verify the rationality of the strength and rigidity calculation method, inspect the manufacturing process, determine the potential of the structure, and reduce and prevent the possible maintenance problem of the structure. In a conventional static test, a charm-shaped canvas belt or a tension and compression pad is adhered to the outer surface of a test piece, and a specified load is applied by connecting an actuating cylinder, so that the safety of the antenna housing is checked.
along with the continuous development of fuselage structure and antenna house integration, the appearance face of antenna house is more and more complicated, and the size is more and more unconventionality, and loading device such as canvas area or draw and press pad can not satisfy static test demand in the past. The antenna housing of a certain type is positioned at the top end of the vertical tail, the overall dimension is about 250mm multiplied by 100mm, the dimension is smaller than that of a conventional canvas belt, the exterior curved surface is complex, the canvas belt or a tension and compression cushion is difficult to adhere, the pneumatic load is large, the working conditions are more, and the safety of the structure cannot be checked by adopting a traditional static test method.
Disclosure of Invention
The purpose of the invention is as follows: aiming at the problems, the invention designs the multi-working-condition large-load static test device which can realize the multi-working-condition large-load static test on the small-size complex-profile radome so as to realize the normal loading on the exterior curved surface, truly simulates the pneumatic load distribution in the flight process, can realize the conversion of various load working conditions on the same test tool through the conversion device, can comprehensively and effectively check the safety of the radome, and provides effective data support for the flight test and design and shaping of the radome.
the technical scheme is as follows: the invention relates to a multi-working-condition large-load static test device capable of realizing a small-size and complex-profile radome.
A small-size complex-surface radome static test device comprises a base, a supporting component, a conversion component and an inflation component; the supporting component is fixed on the base and used for providing rigid support for the test piece; a vent hole is formed in a connecting area between the support assembly and the antenna housing root, and the vent hole is used for testing the pulling load test working condition of the test piece; the conversion assembly is used for testing the pressure load test working condition of the test piece, the top of the conversion assembly is provided with a vent hole, and the conversion assembly is fixed on the base during testing.
On the basis of the testing device, the conversion assembly is a square cover, the top of the square cover is provided with a vent hole, and the bottom of the square cover is fixed on the base; and supporting plates are arranged on the outer sides of the four vertical surfaces and used for supporting the conversion assembly so as to achieve the optimal stable state.
The supporting seat is arranged at the bottom of the base, so that the whole device can be moved conveniently.
And a sealing strip is arranged between the conversion component and the base so as to enhance the sealing performance.
The support assembly is further provided with a sealing bolt for sealing under the pressure load test working condition.
The inflation assembly consists of an air bag, an air nozzle, an inflation tank, a rubber tube, an air pressure meter and a switch, the inflation of the air bag is completed, and the air pressure meter is used for controlling the magnitude of inflation pressure. The air bag is in a shape of an inner profile of the antenna housing.
The beneficial technical effects are as follows: the small-size complex-surface radome static test device provided by the invention can solve the problem that the small-size special-shaped curved surface radome cannot adopt a conventional static test method to perform product safety assessment, and can be used in the existing and later multi-type radomes.
Drawings
FIG. 1 is a schematic drawing of a tensile load static test working condition,
FIG. 2 is a schematic diagram of the static test condition of the compressive load,
Description of numbering: 1-base, 2-supporting component, 3-converting component, 4-inflating component, 5-air bag, 6-air pressure gauge, 7-inflating switch, 8-rubber tube and 9-inflating tank.
Detailed Description
A small-size complex-surface radome static test device comprises a base, a supporting component, a conversion component and an inflation component; the supporting component is fixed on the base and used for providing rigid support for the test piece; a vent hole is formed in a connecting area between the support assembly and the antenna housing root, and the vent hole is used for testing the pulling load test working condition of the test piece; the conversion assembly is used for testing the pressure load test working condition of the test piece, the top of the conversion assembly is provided with a vent hole, and the conversion assembly is fixed on the base during testing.
On the basis of the testing device, the conversion assembly is a square cover, the top of the square cover is provided with a vent hole, and the bottom of the square cover is fixed on the base; and supporting plates are arranged on the outer sides of the four vertical surfaces and used for supporting the conversion assembly so as to achieve the optimal stable state.
And a sealing strip is arranged between the conversion component and the base so as to enhance the sealing performance. The bottom of the base is provided with a supporting seat.
The support assembly is further provided with a sealing bolt for sealing the vent hole of the support assembly to ensure sealing under the pressure load test working condition.
The inflating assembly of the device provided by the invention consists of an air bag, an air nozzle, an inflating tank, a rubber tube, an air pressure meter and a switch, the air bag is inflated, and the air pressure meter is used for controlling the magnitude of the inflating pressure. The air bag is in a shape of an inner profile of the antenna housing.
Referring to fig. 1, the radome is subjected to a tensile load static test by the small-size complex-profile radome static test device provided by the invention, and the test process is as follows:
The antenna housing is arranged on a static test device, an air bag in a shape conforming to the inner shape of the antenna housing is arranged inside the antenna housing, the air bag is inflated through an air nozzle of an inflation assembly, and the air nozzle penetrates through an air vent on a support assembly of the test device to inflate the air bag; different levels of ballast are applied to the inner surface by controlling the air inflation amount, and the examination of the outer surface pulling load working condition is realized.
Referring to fig. 2, the small-size complex-profile radome static test device provided by the invention is used for carrying out a static test on the radome under a compressive load, and the test process is as follows: the antenna housing is installed on a static test device, an air bag in a shape conforming to the outer surface of the antenna housing is filled between the antenna housing and a conversion assembly, ballast of different levels is applied to the outer surface by controlling the inflating volume, and the working condition of the ballast of the outer surface is checked. Before this is experimental, still need use sealing bolt to seal the air vent on the supporting component, set up the sealing strip simultaneously between conversion subassembly and test device base to guarantee the sealed between antenna cover and the conversion subassembly among the test process.
The multi-working-condition large-load static test method for the small-size complex-surface radome, which is designed by the invention, can be used for performing multi-working-condition large-load static tests on the small-size complex-surface radome, realizing normal loading on an external curved surface, truly simulating pneumatic load distribution in a flight process, realizing conversion of various load working conditions on the same set of test tool through the conversion device, comprehensively and effectively checking the safety of the radome, and providing effective data support for the flight test and design of the radome.
Claims (8)
1. The utility model provides a quiet power test device of small-size complicated profile antenna house which characterized in that: the device comprises a base, a supporting component, a conversion component and an inflation component; the supporting component is fixed on the base and used for providing rigid support for the test piece; a vent hole is formed in a connecting area between the support assembly and the antenna housing root, and the vent hole is used for testing the pulling load test working condition of the test piece; the conversion assembly is used for testing the pressure load test working condition of the test piece, the top of the conversion assembly is provided with a vent hole, and the conversion assembly is fixed on the base during testing.
2. The small-size complex-profile radome static test device according to claim 1, wherein: the conversion assembly is a square cover, the top of the square cover is provided with a vent hole, and the bottom of the square cover is fixed on the base.
3. The small-size complex-profile radome static test device according to claim 2, wherein: and supporting plates are arranged on the outer sides of the four vertical surfaces of the square cover and used for supporting the conversion assembly.
4. The small-size complex-profile radome static test device according to claim 1, wherein: the bottom of the base is provided with a supporting seat.
5. The small-size complex-profile radome static test device according to claim 1 or 2, wherein: and a sealing strip is arranged between the conversion component and the base.
6. The small-size complex-profile radome static test device according to claim 1, wherein: the support assembly is further provided with a sealing bolt for sealing the vent hole in the support assembly.
7. The small-size complex-profile radome static test device according to claim 1, wherein: the inflation assembly comprises an air bag, an air nozzle, an inflation tank, a rubber tube, an air pressure meter and a switch, the assembly completes inflation of the air bag, and the air pressure meter is used for controlling the magnitude of inflation pressure.
8. The small-size complex-profile radome static test device according to claim 7, wherein: the air bag is in a shape of an inner profile of the antenna housing.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910692781.8A CN110553911A (en) | 2019-07-26 | 2019-07-26 | Small-size complex-surface radome static test device |
| CN201911162105.6A CN110763565A (en) | 2019-07-26 | 2019-11-21 | Small-size complex-surface radome static test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910692781.8A CN110553911A (en) | 2019-07-26 | 2019-07-26 | Small-size complex-surface radome static test device |
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| Publication Number | Publication Date |
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| CN110553911A true CN110553911A (en) | 2019-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910692781.8A Pending CN110553911A (en) | 2019-07-26 | 2019-07-26 | Small-size complex-surface radome static test device |
| CN201911162105.6A Pending CN110763565A (en) | 2019-07-26 | 2019-11-21 | Small-size complex-surface radome static test device |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911162105.6A Pending CN110763565A (en) | 2019-07-26 | 2019-11-21 | Small-size complex-surface radome static test device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112498739A (en) * | 2020-12-16 | 2021-03-16 | 清华大学 | Wing class component testing arrangement |
| CN113640125A (en) * | 2021-08-24 | 2021-11-12 | 辽东学院 | Aircraft radome negative pressure pneumatic load static strength test device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9586699B1 (en) * | 1999-08-16 | 2017-03-07 | Smart Drilling And Completion, Inc. | Methods and apparatus for monitoring and fixing holes in composite aircraft |
| CN202362214U (en) * | 2011-11-17 | 2012-08-01 | 上海无线电设备研究所 | Pressurization screening device for strengths of quartz ceramic missile radomes |
| CN106507920B (en) * | 2011-12-27 | 2015-01-21 | 中国航空工业集团公司济南特种结构研究所 | A kind of slow test method of small size big load antenna house and its device |
| CN103439067B (en) * | 2013-09-18 | 2016-02-10 | 哈尔滨广瀚新能动力有限公司 | Metro bogie static test bed air spring tightness test device |
| CN107054692A (en) * | 2017-03-30 | 2017-08-18 | 中国航空工业集团公司西安飞机设计研究所 | A kind of hyperbolic surface parts ballast |
| CN207050968U (en) * | 2017-07-14 | 2018-02-27 | 中国航空工业集团公司济南特种结构研究所 | A kind of antenna house slow test biaxial loadings device |
| CN109211549B (en) * | 2018-09-10 | 2022-10-21 | 重庆大学 | Structural component plane outer airbag loading test device |
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2019
- 2019-07-26 CN CN201910692781.8A patent/CN110553911A/en active Pending
- 2019-11-21 CN CN201911162105.6A patent/CN110763565A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112498739A (en) * | 2020-12-16 | 2021-03-16 | 清华大学 | Wing class component testing arrangement |
| CN112498739B (en) * | 2020-12-16 | 2022-11-25 | 清华大学 | Wing class component testing arrangement |
| CN113640125A (en) * | 2021-08-24 | 2021-11-12 | 辽东学院 | Aircraft radome negative pressure pneumatic load static strength test device |
| CN113640125B (en) * | 2021-08-24 | 2024-01-30 | 辽东学院 | Negative pressure pneumatic load static strength test device for aircraft radome |
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| CN110763565A (en) | 2020-02-07 |
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