Multi-body Modeling and Vibration Analysis for Gun
The vibration of gun system affects its firing accuracy. Based on the Gauss minimum constraint principle the multi-body dynamic model of gun system was developed. The analytic expressions of the dynamic equations in closed form were deduced, and the means to simplify various external forces including the impact loading were provided. According to this dynamic equations and combining the correlative experimental parameters, the natural vibration frequencies of gun system were estimated, then the firing process was numerically simulated. Through the simulation analysis the relationships between structure parameters and muzzle vibration were presented. Further, the factors dominating the firing accuracy were determined. The results of simulation have instructional significance for improving the vibration performance, and increasing the firing accuracy. The multi-body modeling method adopted in this paper is also available for other weapons vibration analysis.
gun vibration multi-body modeling numerical simulation
Y.D.Shi D.S.Wang
Department of Weaponry Engineering Naval University of Engineering Wuhan,China
国际会议
上海
英文
1539-1543
2009-11-20（万方平台首次上网日期，不代表论文的发表时间）