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| Dynamic Analysis on the Launching Process of a Compressed Air Driving Weapon |
| HE Lei1, SHANG Xing-chao1, ZHOU Ke-dong1, JIANG Yuan-qing2, ZHANG Zuo-you2, SUN Quan-ling2 |
| 1. School of Mechanical Engineering NUST, Nanjing 210094, China; 2. No.208 Research Institute of China Ordnance Industries, Beijing 102202, China |
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Abstract The pneumatic weapon has broad application prospects with the advantages of simple structure of ammunition and controllable energy. The working principle of a kind of compressed air driving weapon was proposed in this paper. Based on the theories of gas dynamics and Hertz contact, the model of the variable mass thermodynamics process and friction force was established, and the dynamic model of the launching process was established thereby. By MATLAB/Simulink, the numerical simulation solutions of the state parameters of inner gun-barrel gas and the motion parameters of the projectile were obtained under the condition of a constant pressure of the air supply. Based on the above work，the effects on the launching process caused by the changes of compressed air pressure and the structure parameters were analyzed. The results have great theoretical significances to guide the research and design work of the compressed air driving weapon.
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Received: 08 August 2013
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2014, Vol. 33 
