Research on virtual test for load spectrum of components in a self-propelled gun movement system

The load spectrum is a necessary condition for predicting the fatigue life of a component. According to the difficulty of obtaining the load spectrums of the components in a self-propelled gun movement system though environmental tests, the virtual test method based on the virtual prototype technology was proposed. In this paper, the configurations and the motion relations of the self-propelled gun were analyzed, the preliminary virtual prototype was established, the motion constraints were applied and the mechanics models were defined. After that, the virtual prototype of a self-propelled gun was established. Through simulating driving process, the virtual test for load spectrum was realized. The result proves that virtual test for load spectrum based on virtual prototype technology is a feasible method.