Rugged computer

Abstract: Rapid advances in the semiconductor industry have prompted the increased use of computer technology to produce better and "smarter" military systems. Rugged computer hardware, able to pass mil-spec testing, is needed and used to solve problems in a wide range of application areas including space exploration, research in severe environments, military communications systems, navigation systems, and weapons guidance systems.

Abstract: The dynamic simulation of aerospace rugged computer case plays an important role in product design cycle. It is helpful not only in seeking optimum solution for product, but also efficient in shortening the research cycle, reducing cost and insuring the product quality. In this paper, the famous FEM software ANSYS has been used. Modal analysis, transient analysis of response of half-sin-shock and PSD analysis of a computer′s case has been studied. Then the simulation result was compared with experimental data. It verified the reasonability of the simplified model and the boundary condition used in analysis.

Abstract: Firstly,the importance of thermal design and thermal simulation for rugged computer is given.Secondly,aiming at the thermal analysis problem of certain rugged computer,the processes of thermal design and simulation with Icepak was introduced in detail.Then the rugged computer composition and thermal design problem to be solved was introduced,and the choosing process of flow fan is described.Finally,a thermal model is proposed and the temperature field distribution is simulated with 3-D FEM of Icepak,which can estimate the heat distribution and airflow distribution inside the rugged computer.The simulation and analysis with Icepak was demonstrated effectiveness by high-low temperature condition test and practical applications.