Explosion Field Impulse and Wind Dynamic Pressure Test Device

Abstract

The invention discloses an explosion field impulse and pneumatic pressure testing device, which comprises a force receiving module 1, a force measuring module 2 and a fixing module, and is characterized in that the force receiving module 1 is fixedly connected with the force measuring module 2 and is then installed on the fixing module 3, the intrinsic frequency of the device is determined according to frequency characteristics of blast waves of a tested explosion field, the force measuring module 2 outputs a voltage curve after the explosion field impulse and a pneumatic pressure load act on the force receiving module 1, and thus the impulse and the pneumatic pressure are obtained according to the sensitivity of the force measuring module 2. The explosion field impulse and pneumatic pressure testing device not only can test pneumatic pressure parameters of the explosion field, but also has an impulse testing ability, so that measurement for the impulse and the pneumatic pressure is completed simultaneously by one device, and the obtained data can provide data support for ammunition power evaluation and target vulnerability study.

Description

[0001] The invention belongs to the technical field of explosion damage testing and evaluation, and in particular relates to a testing device, in particular to a testing device for impulse and wind dynamic pressure in an explosion field. Background technique [0002] The high-temperature and high-pressure detonation products produced by the explosion of the explosive charge in the air expand rapidly, and the surrounding air is quickly squeezed out from the original position to form an air shock wave. At the same time, the high-pressure air wave gushing out from the center of the explosion follows closely After the shock wave front, shock wind or drag wind is formed, both shock wave and shock wind will cause different degrees of damage to the target, which is the main form of damage caused by the charge to the target. [0003] The impact of shock waves on obstacles mainly includes overpressure loads and impulse loads. When the duration of the positive pressure of shock waves is ...

AI Technical Summary

Problems solved by technology

However, the wind dynamic pressure of a nuclear explosion lasts for a long time and has a high peak value, while the shock wave of an ordinary chemical explosion lasts only a few milliseconds.

[0006] Compared with high-frequency shock waves, wind dynamic pressure load is a low-frequency signal. The current hedging volume and wind dynamic pressure load tests are independent of each other, and there is no relatively mature and reliable test method for wind dynamic pressure load testing, let alone simultaneous Test setup for impulse and aerodynamic loads

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