22nd Congress of International Council of the Aeronautical Sciences, Harrogate, UK, 28 August - 1st September, 2000
Paper ICAS 2000-6.1.3

COMPLETE AIRCRAFT SYSTEM SIMULATION FOR AIRCRAFT DESIGN - PARADIGMS FOR MODELLING OF COMPLEX SYSTEM

P. Krus (1), J. Nyman (2)
(1) Department of Mechanical Engineering, Linköping University, S-58183 Linköping, Sweden; (2) Department of Mechanical Engineering, Linköping University/Volvo Aero Corporation

Keywords: modelling complex systems, aircraft simulation, flight dynamics and control

Modelling and simulation is of crucial importance for system design and optimisation. In aircraft, simulation has been strong in the area of flight dynamics and control. Modelling and simulation of the hydraulic systems has also a long tradition. The rapid increase in computational power has now come to a point where complete modelling and simulation of the sub systems in an aircraft is possible. In this paper it is demonstrated how the actuation system control surfaces can be simulated using a flight dynamics model of the aircraft coupled to a model of the actuation system. In this way the system can then be optimised for certain flight condition by "test flying” the system. The distributed modelling approach used, makes it possible to simulate this system faster than real time on a 650 MHz PC. This means that even system optimisation can be performed in reasonable time.

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