Multivariate analysis on initial disturbances effect of ship-launched rocket excited by ship swaying motion

It is observed that the overload on a ship-borne rocket excited by ship swaying motion affects the initial disturbances during launching process, and the overload coefficient is affected by multiple factors. Virtual orthogonal experiment was designed in order to simulate the initial disturbances of ship-borne rocket in different states. Influenced degree of initial disturbances, which was caused by sea condition, trim angle, launching angle of elevation and location of the launcher on the ship deck, was obtained by multivariate range analysis. The simulation results show that the influence of initial disturbances caused by each of the four factors can not be ignored at all, and the influenced degree of initial disturbances is, in descending order, launching angle of elevation, sea condition, trim angle and location of the launcher on the ship deck.