Research on the influence of M79-type propellant charge structure on bore pressure
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https://doi.org/10.54939/1859-1043.j.mst.FMC.2026.11-18Keywords:
Internal ballistics; M79 propellant charge; Bore pressure; Propellant charge structure; Grenade launcher; Ballistic optimization.Abstract
This paper presents the research results on the influence of M79-type propellant charge structures on the bore pressure variation law. The primary objective is to design an optimal propellant charge solution that ensures compatibility with existing chamber dimensions and barrel strength limits. By employing internal ballistic mathematical models, the study investigates key parameters, including grain geometry, loading density, and charge mass. Experimental results confirm that optimizing the charge structure effectively controls bore pressure within safe operational limits while maintaining the required design muzzle velocity. These findings provide a crucial scientific foundation for the improved design and manufacture of propellant charges for current grenade launcher systems.
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