Study on modeling and simulation of a flight simulator engine system

The accurate aero-engine simulation of the flight simulator is very difficult. To establish the perfect models of aero-engine, the study on modeling method and simulation of turbofan engine system are carried out in this paper. Based on the engine operating principle, control law, logical relation of individual components and vast test data, the engine performance models and function models are developed using Integrated Modeling method. Then the application of 3D/2D interpolation algorithm, alterable coefficient method and modularization modeling method in engine modeling is investigated and the simulation of engine performance in various working conditions is realized. The simulation results show that the established models can satisfy the tolerance of acceleration and deceleration of flight simulator engine system. They also show that the Integrated Modeling method has the advantages in resolving the contradiction between Real-time characteristic and precision of simulation.