Research on Influence Law of Pressure Wave Based on Copper Ball Manometric Method

• Published in: Journal of physics. Conference series Vol. 2478; no. 7; pp. 72016 - 72025
• Main Authors: Qi, Liu, Yuwei, Wang, Yinghua, Guo, Wenfang, Zhu
• Format: Journal Article
• Language: English
• Published: Bristol IOP Publishing 01.06.2023
• Subjects: Artillery; Ballistics; Continuous improvement; Copper; Dynamic models; Elastic waves; Measurement methods; Overloading; Physics; Pressure gages; Pressure measurement; Projectiles; Repeated loading
• ISSN: 1742-6588; 1742-6596
• DOI: 10.1088/1742-6596/2478/7/072016

Abstract With the continuous improvement of artillery performance, internal ballistics and charge performance, abnormal phenomena of internal ballistic environment will appear during the firing process of artillery, mainly manifested as strong fluctuations in chamber pressure. If the pressure fluctuation exceeds a certain level, the pressure (overload) acting on the projectile will not be continuous and uniform, which will inevitably bring about the repeated loading process under dynamic conditions, resulting in the compatibility of the internal ballistic environment of the artillery launching guided munitions. According to the copper ball pressure measurement method commonly used in large-caliber artillery, this paper establishes the effect of the copper ball pressure gauge under different pressure curves in the bore, and verifies the established transient dynamic model. The force process of caliber-artillery projectiles under different transient pressure conditions in the bore (with and without pressure waves) is compared and analyzed, which provides a theoretical reference for the strength design of guided artillery projectiles and the coupling design of artillery projectiles, guns and powders.