Missile launching dynamic simulation based on variation model

An alternative approach to establish missile launching dynamic simulation system based on variation model was presented. The variation models were built according to their respective original sources. The variation forces and moments were added to the standard ones. The resultant was employed to solve the state of motion. This simulation system based on variation model could be used to analyze the effect of each interfering element upon launching precision; and it also could be employed in numeric targeting experiment. This method was applied to some ship-based inclined launching missile. Including launcher vibration, propulsion eccentricity, track uneven and ship movement, the effects of these interfering elements upon the initial disturbances were discussed. A 5 000-time numeric targeting experiment was carried out. On specified distribution of the interference, the hitting probability was up to 93.86%.