Finite element simulation for the mechanical property of optics cabin

By using finite element simulation software of Patran and MD. Nastran we simulate the mechanical property of optics cabin of missile. The element analysis includes static mechanical and thermal analysis of cabin wall which can simulate the condition as missile flying, modal analysis and overloading analysis for optics system support which reflect the dynamics capability, we obtain distribution of stress and temperature of cabin and top ten natural frequencies. The result of simulation is important reference for structure estimate and optimal design.