Citation

Chang H, Wu YC, Tsung TT. Rev. Sci. Instrum. 2011; 82(8): 084902.

Affiliation

Department of Mechanical Engineering, National Taipei University of Technology, Taipei 10608, Taiwan; Department of Mechanical Engineering, Chinese Culture University, Taipei 11114, Taiwan.

Copyright

(Copyright © 2011, American Institute of Physics)

DOI

10.1063/1.3622044

PMID

21895266

Abstract

This paper discusses about the characteristics of supersonic projectile shock wave in muzzle region during firing of high explosive anti-tank (HEAT) and high explosive (HE) projectiles. HEAT projectiles are fired horizontally at a muzzle velocity of Mach 3.5 from a medium caliber tank gun equipped with a newly designed multi-perforated muzzle brake, whereas HE projectiles are fired at elevation angles at a muzzle velocity of Mach 2 from a large caliber howitzer equipped with a newly designed double-baffle muzzle brake. In the near field, pressure signatures of the N-wave generated from projectiles are measured by 32-microphone ring array wrapped by cotton sheath. Records measured by the microphone array are used to demonstrate several key characteristics of the shock wave of supersonic projectile. All measurements made in this study can be a significant reference for developing guns, tanks, or the chassis of fighting vehicles.

Language: en