An abstract simulator design problem is formulated as follows: a dynamic system Sa called the actual system and another dynamic system Ss called a simulator for Sa are given. Furthermore, an input signal which drives the actual system Sa is given. The problem is to find an operator, properly constrained, which generates the input to the simulator Ss on the basis of the input to Sa so that the discrepancy between the output of Sa and Ss is as small as possible. This abstract simulator design problem is brought to the form of an optimal control problem and then solved for the linear-quadratic-Gaussian special case. Next the solution of the abstract simulator problem is applied to the design of motion generators for flight simulators. A fairly elaborate mathematical model of the vestibular organs is used. The optimization criterion that is selected is the mean-square difference between the physiological outputs of the vestibular organs for the pilot in the airplane and for the pilot in the simulator. The dynamical equations are linearized, and the input signal is modeled as a random process with a rational power spectral density. Subject to the above assumptions, the optimal structure of the motion generator for the simulator, also called a 'washout filter', is derived.
An optimal control approach to the design of moving flight simulators
Ein optimales Regelungsverfahren fuer den Entwurf sich bewegender Flugsimulation
IEEE Transactions on Systems, Man and Cybernetics ; SMC-12 , 6 ; 818-827
1982
10 Seiten, 17 Quellen
Article (Journal)
English
Design of optimal motion for flight simulators
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