High-energy impact loading test and testing device and method for large-mass test piece
A technology of loading test and testing device, which is applied in the field of high impact loading and can solve problems such as the lack of corresponding high-energy impact loading facilities for large-mass specimens.
Active Publication Date: 2022-04-26
BEIJING INSTITUTE OF TECHNOLOGYGY +1
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Problems solved by technology
[0004] In some military use environments, missile-borne electronic test devices and accelerometer sensors need to be used in extreme environments such as high temperature or low temperature, and the test error introduced by temperature cannot be ignored, but due to the limitations of test conditions or structural design , there is no corresponding dedicated high-energy impact loading facility for large-mass specimens, so it is necessary to design a device that can perform high-energy impact testing of large-mass specimens under extreme temperature conditions
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Embodiment 1
[0051] Such as figure 1 As shown, a large-mass specimen high-energy impact loading test and testing device disclosed in this embodiment includes: a pressure drive device, a magazine device, an experimental projectile, a barrel body, a device bracket, a projectile target collision chamber, a high and low temperature Experimental cabin, multi-stage buffer energy-absorbing device, high-speed and high-impact laser interference test system, photoelectric trigger detector, intelligent information processing system, etc.
[0052] The pressure driving device mainly includes a pressure vessel 2, a quick opening valve 1, and an air intake valve at the end of the high-energy impact loading test and testing device for a large mass specimen. The volume of the pressure vessel 2 is not less than 240 liters. Open the valve to control the rapid release of compressed gas to drive the figure 2 The experimental projectile 18 in is moving rapidly. The driving air pressure of the pressure vessel...
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Abstract
The invention discloses a high-energy impact loading test and test device and method for a large-mass test piece, and belongs to the technical field of impact test. By designing a two-body type mounting structure of the high-temperature and low-temperature experiment module, high-energy impact in-situ testing and testing of a large-mass test piece under an extreme temperature environment condition are realized; only one set of missile target collision device is used for realizing the functions of high impact resistance research of missile-borne electronic equipment, simultaneous calibration of a plurality of sensors and the like; by restraining the posture of the anvil body and fast focusing of the five-degree-of-freedom fine tuning platform, it is ensured that the laser interferometer obtains high-quality echo signals, and the test precision is improved; by designing a gear box advancing and retreating moving device, the convenience of disassembling and assembling the anvil body and the tested piece is remarkably improved; by designing a multi-stage buffer energy-absorbing device, the tested piece is protected from being influenced by secondary impact.
Description
technical field [0001] The invention belongs to the technical field of high impact loading, and in particular relates to a test and test device and method for high-energy impact of a large-mass test piece. Background technique: [0002] Large-mass bomb-borne electronic testing devices are widely used in civilian crash tests and national defense scientific research, production and testing, and play an important role in monitoring. The high-energy impact loading test technology for large-mass specimens is the structural and functional An important technology for reliability and test calibration, especially used in the field of national defense. In order to reduce the risk and cost of live ammunition tests, high-energy impact loading tests are used in advance to conduct high-energy impact loading assessments on missile-borne electronic equipment, which can be exposed and resolved as soon as possible. Problems, improving the reliability of missile-borne devices, and laying an im...
Claims
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Login to View More IPC IPC(8): F42B35/00
CPCF42B35/00
Inventor 张振海滕飞宋钱骞张振山
Owner BEIJING INSTITUTE OF TECHNOLOGYGY