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A simulation model of an uninhabited aircraft

The purpose of this paper is to present the general conceptual frame of a simulation package for the flight of an uninhabited aircraft that is currently under development as part of a virtual design environment at the National Aerospace Research Institute of Bucharest, Romania. The major components are defined according to the tasks that need to be performed. Their structural architecture, content, interconnecting relationships and informational flow are identified and described. General dynamic equations of motion of a rigid body airvehicle with rotating parts and variable center of mass position are derived using Kane’s method. A partial, preliminary implementation has been performed and numerical results are presented to illustrate it.