Recoil reduction method of gun with lateral nozzle controlled by electromagnetic valve

Si, Peng; Qiu, Ming; Liao, Zhenqiang; Song, Jie; Ma, Longxu

doi:10.1088/1742-6596/1748/5/052022

Cited by 2 publications

(1 citation statement)

References 2 publications

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“…Therefore, the internal ballistic parameters in the chamber of the weapon system after the vibration control device is installed will inevitably change. To obtain more accurate calculation results in the physical sense, the mathematical models in Sections 2.3 and 2.5 are established [2,[7][8].…”

Section: Establish a Mathematical Model Of The Control Devicementioning

confidence: 99%

Research on Vibration Control of Paired Inclined Nozzles Dynamic Coupled Tubes

Qiu

Liao

Song

et al. 2023

J. Phys.: Conf. Ser.

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The barrel vibrates violently, which will lead to a serious drop in shooting accuracy. To solve this issue, a barrel vibration control method of the paired oblique nozzle dynamic couple is proposed. A pair of inclined nozzle devices are designed on the barrel to fully use the gunpowder gas energy in the chamber during the shooting process. A dynamic couple is generated to balance the turning moment of the barrel weapon. Simultaneously, the recoil force is reduced by exporting the gunpowder gas in the chamber. Therefore, the vibration of the barrel is reduced. Firstly, the internal ballistic two-phase flow model including the gas transient flow model in the vibration control device is modelled based on the internal ballistic theory of two-phase flow. Secondly, the numerical simulation of the weapon launching process is carried out. Thirdly, the rigid-flexible coupling firing dynamics modelling and simulation research is conducted on a 30mm chain gun equipped with a paired oblique nozzle dynamic couple vibration control device. At last, the effects of the device on the continuous firing vibration control of barrel weapons are analyzed. The results show that the vibration reduction efficiency of the inclined nozzle is better than that of the vertical nozzle and the horizontal nozzle. When the angle of the inclined nozzle is 30°, the barrel shows the highest vibration reduction efficiency. The vibration reduction efficiency of each vibration characteristic is 39.2%, 17.1%, 44.8%, and 48.9%, respectively.

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Section: Establish a Mathematical Model Of The Control Devicementioning

confidence: 99%

Research on Vibration Control of Paired Inclined Nozzles Dynamic Coupled Tubes

Qiu

Liao

Song

et al. 2023

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

show abstract

Study on the asynchronous effect of projectile starting and blocking sheet opening in recoilless gun

Jiang,

Tao,

et al. 2023

Journal of Vibration and Control

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As the switch for the start-up of the nozzle at the rear of the recoilless gun, the opening pressure of the blocking sheet directly affects the balance of the recoilless gun during the shooting process. The opening time of the blocking sheet is obtained through high-speed camera by capturing the tail flame. Using piezoelectric pressure sensors, the pressure at different positions along the barrel were measured. Furthermore, the pressure at the moment of opening the blocking sheet was determined based on its opening time. A significant force jump (Δ f = 146.9 kN) in the unbalanced recoil experienced by the recoilless gun during the initial firing stage was identified based on the theory of one-dimensional recoilless gun balanced interior ballistics. This jump arises from the opening pressure of the blocking sheet surpassing the projectile's starting pressure ( P0). This research can provide a reference for the design of recoilless weapons related to unbalanced force.

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Recoil reduction method of gun with lateral nozzle controlled by electromagnetic valve

Cited by 2 publications

References 2 publications

Research on Vibration Control of Paired Inclined Nozzles Dynamic Coupled Tubes

Research on Vibration Control of Paired Inclined Nozzles Dynamic Coupled Tubes

Study on the asynchronous effect of projectile starting and blocking sheet opening in recoilless gun

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