Electromagnetic and structural analyses of an integrated launch package

In this paper, detailed three-dimensional (3D) transient electromagnetic (E M) analyses uith temperature-dependent material properties were performed u sing a state-of-the-art analysis tool to calculate current densities, body force densities, and temperature distribution in launch package and rail co nductors. The body force densities, temperature distribution, and package a ccelerations generated by the EM model were then provided to a 3D multiple- step nonlinear static structural model for detailed mechanical analyses. Th e combined 3D EM and structural analyses can be used to accurately predict the EM launching performance and launch package structural integrity Furthe rmore, armature optimization and package survivability enhancement can also be achieved with the help of these analyses.