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Modeling and Simulation of Interior Ballistics of High-Speed Launch based on Lateral Injection for Energy Compensation Technology

YONGJIE CAO, WENLONG YUE, JING HU, WEIWEI ZHANG, MINHUA ZHANG, XIJIN LIU, YUAN YAO

Abstract


To improve the muzzle velocity by a large margin without increasing the gun chamber pressure, a lateral-injection for energy compensation technology was proposed. The principle is installing a regenerative auxiliary chamber with liquid propellant at a proper location in the barrel to compensate the energy in the space behind the projectile. Aiming at the interior ballistic characteristics of the technology, the corresponding model was established and the numerical simulation was carried out for a certain gun. Results show that the location of the auxiliary chamber, the injection area, the differential ratio and the mass of the injection piston have significant effects on the interior ballistic performance. By optimizing these parameters, the muzzle velocity can be increased substantially. The method can provide a new thought for designing the high-speed launcher.

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