Design Of Flight Simulation System Base On IHawk Platform And Flight Dynamics

Flight simulation system is one of the most challenging hotspots in the field of high technology intensive and interdisciplinary fusion, which provides a very rich research direction and research topic for the development of aviation related subjects. Building a platform based on the theory of flight system is the most important condition for professional training. From the engineering point of view, the use of flight simulation technology for flight testing, it can reduce the test time, reduce risk and cost savings. In this paper, iHawk real-time simulator is used as the simulation platform. In the Matlab/Simulink environment, a flight dynamics model is established, and the flight vehicle model on the iHawk simulator, the SIMulation Workbench software is used as the control platform which controls the process of the simulation. The simulation is realized on iHawk simulator finally.This paper introduces the two flight simulation system, which is man-in-the-loop(MIL) simulation and hardware in the loop(HIL) simulation. MIL simulation is realized in this paper, and HIL simulation is not achieved because of the limit of the time. The physical interface of flight control computer is tested. Visual system is used in MIL and HIL simulation, especially, visual system provides the only feedback for MIL simulation. The modular approach is used in modeling the flight vehicle, and each part of the flight vehicle module is described in detail. The communication interface of X-plane flight simulation software is parsed in detail. The test is achieved the controlling of the position and attitude of the aircraft in the X-plane.Finally the user interface code is programmed in Workbench SIMulation software: reading joystick control signals in MIL simulation and outputting the flight parameters to visual system. The Simulink model can be converted into real-time code running on the simulator by using Workbench SIMulation. A simple human-machine-interface is established, the simulation code is tested finally. All the solution process is completed within one millisecond. The results show that the rapid prototyping and simulation based on iHawk simulator can significantly reduce the workload of simulation development, shorten the development cycle, reduce the difficulty of writing code, and the realization of real-time simulation is an effective and feasible technology.