Papers by Keyword: Aircraft Modeling

Abstract: In aircraft flight control law design, the first key is to establish actual aircraft mathematical model, then according to the model of dynamic output information, analysis control law design is appropriate. But in the movement the aircraft is a complex dynamics system, modeling is very complex. This paper firstly carry out comprehensive feasibility analysis, on a plane modeling consideration simplified, secondly, in actual applications verified using the perturbation method of nonlinear equation linearization, establish the plane mathematics model.

Abstract: A full order model of an aeroelastic aircraft has too many parameters to yield satisfactory estimates. In this paper, using simulated data, rigid body and aeroelastic derivatives are estimated in longitudinal axis for single elastic mode. The proposed approach uses an integrated model structure. It emphasizes the use of estimation techniques that have the capability to accurately determine modal characteristics in those flight test situations where the measured data is dominated by elastic effects. Output error method in time domain is applied to the simulated flight data to identify the aircraft derivatives.