Research on Anti-Shock Capability of Shipborne Torpedo Launcher Based on Dynamic Design Analysis Method

The anti-shock capability of marine equipment and system is an important factor in determining the vitality of a ship in wartime. Based on the modal test for shipborne torpedo triple launcher and the finite element modeling technology, we establish a finite element analysis model of the launcher to investigate its anti-shock capability. In terms of the dynamic design analysis method(DDAM), with which American navy assess the anti-shock capability of marine equipment, we design launcher shock input spectrum according to the GJB1060 Standard to simulate and assess the anti-shock capability of the triple torpedo launcher. Simulation results demonstrate that on the turntable tile plate the maximum shock response displacement and the maximum Von-Mises stress appear in transverse direction, but the max transverse Von-Mises stress is less than the yield strength of material. The transverse, longitudinal and vertical anti-shock capabilities meet the requirements of the ship anti-shock assessment