Analysis on Performance of Clearance Seal Structure Applied to Gunpowder Gas of Projection Base
MA Hui-ming 1, 2，ZHANG Ya 1，LI Shi-zhong 1
1. School of Mechatronic Engineering, North University of China, Taiyuan 030051;
2. School of Information and Communication Engineering, North University of China, Taiyuan 030051
Abstract：The clearance of ejection channel needs to be sealed when the projection base was bored a hole to eject the recovery device of penetration data, so eight kinds of clearance seal structure were designed. The state parameters of gunpowder gas were calculated in the course of maximum chamber pressure and the whole interior ballistics for simulation. The pressure change of gunpowder gas in the clearance of these seal structure was simulated and analyzed by FLUENT software, and the analysis results were applied to compare and determine the optimum seal structure with the best seal performance. Three typical structures were selected based on simulation results, and were applied to test for verifying the seal performance. The results show that in these seal structures of gunpowder gas at projection base, the factors of seal eaves, labyrinth and groove play different role in clearance seal for gunpowder gas, and the seal effect of rectangular groove structure with seal eaves is the best in those of seal structure, and the seal performance is better by setting the seal ring. The results can be referenced by studying on seal of gunpowder gas in conditions of high temperature and high pressure.
马慧明1, 2，张亚1，李世中1. 弹底火药气体的间隙密封结构性能分析[J]. 振动与冲击, 2017, 36(12): 140-145.
MA Hui-ming 1, 2，ZHANG Ya 1，LI Shi-zhong 1. Analysis on Performance of Clearance Seal Structure Applied to Gunpowder Gas of Projection Base. JOURNAL OF VIBRATION AND SHOCK, 2017, 36(12): 140-145.
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