Stochastic Exterior Ballistic Modeling of 6-DOF with Monte Carlo Solution

• Main Authors: Chun-wei Hung, 洪浚瑋
• Other Authors: Shiu-ping Wang
• Format: Others
• Language: zh-TW
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/93763312501242589137

碩士 === 修平技術學院 === 精密機械與製造科技研究所 === 99 === The six degrees of freedom（6-DOF）trajectory model was used to calculate the trajectory and altitude of the projectile. Under the same initial conditions, the solution of 6-DOF trajectory model is a unique solution. But from the really firing test, the projectile trajectory is hard to be same even though the firing conditions were kept. Muzzle velocity variance, muzzle jump, muzzle blast and aerodynamic jump are the random factors, which can affect the exterior ballistic of the projectile. Especially Muzzle velocity variance and muzzle jump are the main factors to cause the dispersion of the projectile. A stochastic exterior ballistic model of Muzzle velocity variance and muzzle jump are constructed to analysis the dispersion of the projectile. Monte Carlo method was used to generate the random variance and quantize the direction of the muzzle jump. A sample of M107 155 mm projectile trajectories was calculated by applying this model. The computational result gives satisfactory agreement with experimental data.