Vibration Influence of Artillery Autoloader Analysis and Testing

Abstract:

The inconsistency of the projectile's seizing-bore stroke of the large caliber gun during feeding process will lead to differences of the volume of propellant chamber and starting pressure of projectiles.It will also affect guns' muzzle velocity and firing accuracy.In order to improve the positioning accuracy of projectiles in an arm-type autoloader,first of all,high speed photography was used and only to find that there will be vibrations of projectiles in the direction of gravity.The vibrations will consume kinetic energy of the projectile and contribute to inconsistency of the retaining force.By means of analyzing the working mechanism of the rammer,the motion relationship among the parts during ramming process came to clear eventually.Then the position of the exciting source which causes vibrations of the projectile can be determined by analyzing the force situation of the rammer in the stationary state and the state of motion,and next,testing the amplitude and frequency of the position using laser displacement sensor.Finally,the improved scheme was raised to eliminate the impact of the vibration on stability of ramming.

• Periodical: Advanced Materials Research (Volume 711)
• Pages: 540-544
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.711.540
• Online since: June 2013
• Authors: Jie Xing, Yin Xian Duo
• Keywords: Autoloader, Dynamic, Retaining Force, Vibration Test

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