Researches on the anti-shock capability of a ship-borne cabinet based on DDAM

After analyzing the dynamic equation, the modal participation factor and the method of modal synthesis are given. Then, according to the specific national standard, the ship-borne cabinet is computed and analyzed with ANSYS software based on the dynamic design analysis method(DDAM).The results show that the maximum equivalent stress of the cabinet is below the yield stress of the material, the impact force on the isolator is under its allowable value. The results also provide a valuable reference for the future optimization design.