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Explosion impulse testing device, system and method

A technology of impulse test and explosion shock wave, which is applied in the field of explosion damage test and evaluation, can solve problems such as limitations, and achieve the effects of protecting damage, reducing friction, and reducing impact

Inactive Publication Date: 2020-02-21
NANJING COLLEGE OF INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method needs to use a high-speed camera to interpret the velocity value, and its practical application is greatly limited

Method used

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  • Explosion impulse testing device, system and method
  • Explosion impulse testing device, system and method
  • Explosion impulse testing device, system and method

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Embodiment Construction

[0040] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and preferred embodiments.

[0041] see figure 1 and figure 2 , the present embodiment provides the explosion impulse test device of the first embodiment, including a housing 20, a bracket 10, a slider 31, a slide bar 32 and an acceleration sensor 33, and the bracket 10 is used to fix the test device, including a The front side 101, the housing 20 is fixed on the bracket 10, the front side 201 of the housing is flush with the front side 101 of the bracket and included in the front side 101, the rear end of the housing extends vertically away from the front side of the bracket, the housing 20 is columnar, the axial center of the housing is provided with a sliding chamber 22, the front end of the sliding chamber 22 extends to the front...

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Abstract

The invention discloses an explosion impulse testing device, system and method. Explosion impulse parameters are converted into slider speed increments which are easy to measure and can reflect an explosion impulse process, the magnitude of the specific impulse of an explosion wave transmission process after explosion can be effectively measured, the test error is small, the accuracy is high, andreliable data can be provided for shock wave damage effect evaluation.

Description

technical field [0001] The invention relates to the technical field of explosion damage testing and evaluation, in particular to an explosion impulse testing device, system and method. Background technique [0002] In the evaluation of the damage effect of explosion shock wave, impulse is one of the important parameters, and the explosion impulse is the area enclosed by the explosion pressure-time curve. Due to the short duration of the explosion process and the complexity of the action process, it is very difficult to directly test the transient impulse. At present, the impulse test mainly includes pressure sensor, impact pendulum and contour line and other methods. The pressure sensor method is to obtain the impulse by time integration after measuring the transient overpressure. So far, this method has been widely used in the field of explosion shock wave testing, but due to uncertain factors in high-frequency measurement and human interpretation errors during integration...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L5/14
CPCG01L5/14
Inventor 仲倩翟琳张志友
Owner NANJING COLLEGE OF INFORMATION TECH
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