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Huiming Ma, Ya Zhang. Sealing of Ejection Hole at the Bottom of Projectile for Wired Transmission System of Penetration Data[J]. JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2017, 26(3): 318-323. doi: 10.15918/j.jbit1004-0579.201726.0306
Citation: Huiming Ma, Ya Zhang. Sealing of Ejection Hole at the Bottom of Projectile for Wired Transmission System of Penetration Data[J].JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2017, 26(3): 318-323.doi:10.15918/j.jbit1004-0579.201726.0306
shu

Sealing of Ejection Hole at the Bottom of Projectile for Wired Transmission System of Penetration Data

doi:10.15918/j.jbit1004-0579.201726.0306
  • 1.

    School of Mechatronic Engineering, North University of China, Taiyuan 030051, China;School of Information and Communication Engineering, North University of China, Taiyuan 030051, China

  • 2.

    School of Mechatronic Engineering, North University of China, Taiyuan 030051, China

  • Received Date:2016-08-05
    Abstract
  • It is difficult to find the projectile when people want to get the penetration data in a hard recovery method, so a recovery system of penetration data is designed based on an ejection mode from the projectile base and a method of wired transmission, at the same time, the system was sealed with a designed sealing device, the working principle of which was introduced. Using Fluent as the simulation platform, the transient pressure of seal cavity was simulated based on the change of chamber pressure, and steady-state pressure of seal clearance and seal cavity were simulated based on the maximum chamber pressure. The sealing performance was tested by a pressure test system. The results of simulation and experiment show that the maximum pressure of seal cavity is 139.4.kPa when the maximum chamber pressure is 242.9.MPa and the maximum temperature of gunpowder explosive gas is 2.166.5.K, so the sealing performance can be assured. The sealing device can be taken as a reference in sealing research on gunpowder gas at the bottom of projection.
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    • References (15)
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