Abstract
Excessive recoil severely restricts the loading of high-power traditional guns on modern vehicles. To reduce the recoil without breaking the continuous firing mode and reducing the projectile velocity, a recoil reduction method that controls the lateral ejecting of propellant gas by a piston was proposed. The recoil reduction device is symmetric about the barrel axis. First, a one-dimensional two-phase flow model of interior ballistic during the gun firing cycle was established. Next, the MacCormack scheme was used to simulate, and the piston motion was gained. Then the propagation of the rarefaction wave in the barrel was presented. Finally, the propulsion difference between the piston-controlled gun and the traditional gun was discussed. The results showed that the recoil momentum was reduced by 31.80%, and the muzzle velocity was decreased by just 1.30% under the reasonable matching of structural parameters.
Highlights
In modern war, power increase and maneuverability improvement are the development trend for traditional guns
Kathe [6,7] proposed a concept of rarefaction wave gun to reduce the recoil by venting propellant gas through the breech
After propellant gas flows into the piston cavity through the barrel vent, the piston moves under the action of the propellant gas pressure, the spring resistance, and the friction resistance
Summary
Power increase and maneuverability improvement are the development trend for traditional guns. Kathe [6,7] proposed a concept of rarefaction wave gun to reduce the recoil by venting propellant gas through the breech. This method breaks the continuous firing mode of a traditional gun, which restricts its development in engineering application. Liao [8], Chen [9], and Cheng [10] studied the reversely jet low recoil gun, which vents propellant gas through the orifice in the side wall of the barrel. Zhang [15] proposed a front orifice rarefaction wave gun He ignored the control device movement, so the exact recoil reduction efficiency could not be obtained. The changes in the muzzle velocity and the recoil are discussed
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