Testing device and method for testing fragment speed attenuation rule in complex environment

Abstract

The invention belongs to the technical field of fragment speed testing, and relates to a testing device for testing a fragment speed attenuation rule in a complex environment. The device comprises a cavity, a guide rail, a speed measurement frame, a test cavity, a partition plate, a buffer cavity, a ring nut, an inlet diaphragm, a front sealing end cover, an interface, a temperature controller, a humidity controller, a rear sealing end cover, a fragment retardation box, a fixing screw, a lock catch, an observation window, bullet-proof glass, a fixed base and a workbench. According to the invention, by adjusting humidity, pressure and temperature, a test environment required by a test is formed, fragment speeds under different working conditions are obtained, and a fragment speed attenuation rule under a complex environment is obtained, so as to support scientific research related to damage effect evaluation. According to the method, the percussion device is separated from the testing device, so that the influence of vibration, high-temperature and high-pressure gas and interface sealing performance on disturbance of set environmental factors in the percussion process can be avoided, the influence of fragment auxiliary devices such as a sabot on speed testing is reduced, and the testing precision is greatly improved.

Description

technical field [0001] The invention relates to the technical field of fragment velocity testing, in particular to a test device and method capable of forming different environmental conditions such as air temperature, humidity and pressure, and testing fragment velocity attenuation in different environments. Background technique [0002] Fragments are fragments with a certain mass and muzzle velocity produced after the action of the ammunition warhead. Fragments with a certain initial velocity will cause velocity attenuation due to air resistance during flight. As one of the typical damage elements for killing targets, their attenuated storage velocity is an important evaluation criterion for calculating the power of the warhead and the damage effect of the projectile. The atmospheric environment where fragments fly has various physical characteristics such as temperature, humidity, and air pressure, and the influence of air resistance on fragment velocity attenuation in di...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the technical problem that the test results of the fragment velocity attenuation test in the prior art cannot be fully applicable to complex environments such as high altitude, plateau, dry cold, and humid heat, and propose a method for testing the fragment velocity attenuation test in complex environments. Test device and method

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