Medium-low temperature high-speed impact test device and test method thereof

A technology of impact test and low temperature, which is applied in the direction of weapon testing, weapon accessories, offensive equipment, etc., can solve many problems, and achieve the effect of simple operation, low manufacturing cost and high structural strength

Active Publication Date: 2020-04-21
HARBIN INST OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are not many high-speed impact tests in the simulated low-temperature environment in China, especially the installation of low-temperature refrigeration devices on gunpowder guns or light gas guns, which can provide an ideal low-temperature environment for test targets. Mature and feasible test methods are rare. There are reports

Method used

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  • Medium-low temperature high-speed impact test device and test method thereof

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Embodiment Construction

[0056] The specific technical solutions of the present invention are described in conjunction with the examples.

[0057] Such as figure 1 As shown, a medium-low temperature high-speed impact test device includes a gunpowder cannon, an electromagnetic velocimeter 9, a target frame 27, an environmental chamber 22, a temperature control system and a protective tank 19;

[0058] The protective tank body 19 is used as a safety protection device for the projectile impact test; the protective tank body 19 is provided with through holes for threading and pipelines, and one end of the tank body 19 is provided with a tank door 20;

[0059] The inside of the protective tank 19 is provided with a test table 18, lighting fixtures 41 and a flange window 44 on the side of the protective tank 19;

[0060] The gunpowder gun and the environmental chamber 22 are installed on the test bench 18; the environmental chamber 22 is provided with a target frame 27 and a liquid nitrogen evaporation pla...

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Abstract

The invention provides a medium-low temperature high-speed impact test device and a test method thereof. A protection tank body is used as a safety protection device for a projectile impact test; theprotection tank body is provided with a through hole for threading and a pipeline, and one end of the protection tank body is provided with a tank door; a test table board and an illuminating lamp arearranged in the protection tank body; a gunpowder gun and an environment box are arranged in the test table board; a target frame and a liquid nitrogen evaporation plate are arranged in the environment box; the measurement and control cable of the temperature control device is connected with the environment box, and the refrigeration pipeline of the temperature control device is connected with aself-pressurization liquid nitrogen tank; the self-pressurization liquid nitrogen tank is connected with the liquid nitrogen evaporation plate; an electromagnetic velometer is connected with the detachable gun barrel of the gunpowder gun and connected with an oscilloscope through a cable. The device has the advantages of being low in manufacturing cost, small in size, simple in structure, convenient to operate and high in launching safety and reliability and reducing professional requirements of operation.

Description

technical field [0001] The invention relates to the technical field of material impact testing, in particular to a medium-low temperature high-speed impact testing device and a testing method thereof. Background technique [0002] For structural materials used in aviation, aerospace, military and high-speed transportation, such as titanium alloys, aluminum alloys and zirconium alloys, the effects of dynamic load and temperature are service environment factors that must be considered. For example, when in-orbit spacecraft are subjected to high-speed impacts from space debris, protective armor is subjected to ballistic impacts, and polar equipment is subjected to blizzard / flying rock attacks, structural materials must withstand the combined effects of low-temperature or variable-temperature environments and high-speed impacts. On the other hand, the development of aviation, aerospace, weapons and high-speed train technology has promoted the continuous deepening of the research...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F41A31/00
CPCF41A31/00
Inventor 吕钢刘勇刘海叶铸玉董尚利耿洪滨
Owner HARBIN INST OF TECH
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