Abstract
Abstract — The aim of this work is to model and simulate a Flying Wing Aircraft and compare acquired flight data from two different simulations. The framework proposed constitutes of the development of a graphical model as well as the use of a mathematical model of the aircraft. In order to implement the Software-in-the-Loop (SIL), we used a commercial flight simulation environment, X-plane 10, which simulates the dynamics of the aircraft through the Blade Element Theory, and the software MATLAB/Simulink, which simulates and implement the control laws. We collected the flight data from the simulator, as well as the responses of the mathematical model based on equations of motion and the aerodynamic derivatives, which were computed via the Digital DATCOM software. Both analytical simulation and the SIL simulation were performed with the same flight conditions, validating the longitudinal dynamic of the computational model and allowing further studies of this type of aircraft in future projects.
Highlights
IN the recent years, computational simulation has been an important tool for data acquisition, and in providing essential information about the behavior of mechanical systems [1]
Since there is a lack of mathematical modeling that describes the behavior of flying wings because of their design complexity and aerodynamic instability, this paper presents the longitudinal dynamic modeling of a flying wing Unmanned Aerial Vehicles (UAV) through the derivatives of stability and control as well as the equations of motion, and through the Blade Element Theory
This specific model did not exist in the X-Plane database; we modeled it from scratch (Fig. 2)
Summary
IN the recent years, computational simulation has been an important tool for data acquisition, and in providing essential information about the behavior of mechanical systems [1]. Simulations are used throughout the development of all aircraft, and they evaluate the control algorithm allowing for easy manipulation of the early model. This allows for data creation for the aircraft model, for faster development of the product, as well as minimizing the number of experimental flights. Several commercial simulators are available and used as a tool, known as Software-In-the-Loop (SIL), for the implementation of flight dynamics, navigation control, and for validating models in a precise fashion before field tests [2]. SIL couples partially integrated software with an environment simulation and allows a direct information-technical communication between the two, for simple data creation, collection, and processing
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