Simulation of Resistant Shock Capability of Missile Launcher Based on DDAM

Simulation is the important method for shock-resistant ability design of shipboard equipment. And shipboard equipment shock-resistant ability is the one of important factor of ship life ability. Four-missile launcher resistant shock ability has been evaluated by American navy dynamic design analysis method (DDAM). The four-missile launcher has maximal value of displacement at Z direction, and has maximal value of mises stress at X direction because Four-missile launcher has less stiffness at Z direction and has bigger stiffness at X direction. In order to decrease the value of mises stress at X direction, could decrease stiffness of X direction suitably.