Neural network based redesign of morphing UAV for simultaneous improvement of roll stability and maximum lift/drag ratio
Aircraft Engineering and Aerospace Technology
ISSN: 0002-2667
Article publication date: 2 October 2018
Issue publication date: 20 November 2018
Abstract
Purpose
The aim of this paper is to redesign of morphing unmanned aerial vehicle (UAV) using neural network for simultaneous improvement of roll stability coefficient and maximum lift/drag ratio.
Design/methodology/approach
Redesign of a morphing our UAV manufactured in Faculty of Aeronautics and Astronautics, Erciyes University is performed with using artificial intelligence techniques. For this purpose, an objective function based on artificial neural network (ANN) is obtained to get optimum values of roll stability coefficient (Clβ) and maximum lift/drag ratio (Emax). The aim here is to save time and obtain satisfactory errors in the optimization process in which the ANN trained with the selected data is used as the objective function. First, dihedral angle (φ) and taper ratio (λ) are selected as input parameters, C*lβ and Emax are selected as output parameters for ANN. Then, ANN is trained with selected input and output data sets. Training of the ANN is possible by adjusting ANN weights. Here, ANN weights are adjusted with artificial bee colony (ABC) algorithm. After adjusting process, the objective function based on ANN is optimized with ABC algorithm to get better Clβ and Emax, i.e. the ABC algorithm is used for two different purposes.
Findings
By using artificial intelligence methods for redesigning of morphing UAV, the objective function consisting of C*lβ and Emax is maximized.
Research limitations/implications
It takes quite a long time for Emax data to be obtained realistically by using the computational fluid dynamics approach.
Practical implications
Neural network incorporation with the optimization method idea is beneficial for improving Clβ and Emax. By using this approach, low cost, time saving and practicality in applications are achieved.
Social implications
This method based on artificial intelligence methods can be useful for better aircraft design and production.
Originality/value
It is creating a novel method in order to redesign of morphing UAV and improving UAV performance.
Keywords
Acknowledgements
This work was supported by Research Fund of The Scientific and Technological Research Council of Turkey (TÜBİTAK) under Project Number: 214M282.
This work was supported by Research Fund of Erciyes University Scientific Research Projects (BAP) Coordination Unit under Project Number: FBA-2015-6286.
Citation
Oktay, T., Arik, S., Turkmen, I., Uzun, M. and Celik, H. (2018), "Neural network based redesign of morphing UAV for simultaneous improvement of roll stability and maximum lift/drag ratio", Aircraft Engineering and Aerospace Technology, Vol. 90 No. 8, pp. 1203-1212. https://doi.org/10.1108/AEAT-06-2017-0157
Publisher
:Emerald Publishing Limited
Copyright © 2018, Emerald Publishing Limited