The analysis of shipboard equivalent dynamics model

Shipboard has a great influence on equipment while equipment suffer a shock.Through modal analysis and reasonable hypothesis,the single degree of freedom systems and double degree of freedom systems were attained.The shock analysis of FEM model and dynamics model was carried out,and the results of displacement response and velocity response and accelerate response and shock response spectrum were contrasted.The results show that the SDF and the double degree of freedom system were feasible.The double degree of freedom system dynamics equivalent model is more feat at natural frequency of shipboard.