The depth charge launcher is installed on the deck section and the operation environment is very tough. In the past, the traditional test method was used to assess the environmental suitability. In recent years, with the wide application of three-dimensional design ,, simulation technology has also started to play a role. In this paper, the impulse response of the junction box ofthe launcher is taken as an example to introduce the application of simulation technology in the environment suitability analysis of thelauncher. The case analysis shows that the simulation analysis is very effective in finding the weak links in the design of mechanicalstructures, and it breaks the limitation of environmental test, including the experimental prototype and the specific environmentalconditions. The simulation results can be obtained in a relatively short period of time, and the equipment model is corrected in time.
