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Design of Fuzzy Logic Controller for Lateral Dynamics Control of Aircraft by Considering the Cross-Coupling Effect of Yaw and Roll on Each Other

International Journal of Computer Applications
© 2012 by IJCA Journal
Volume 47 - Number 13
Year of Publication: 2012
Vishnu G Nair
Dileep M V
Prahalad K R

Vishnu G Nair, Dileep M V and Prahalad K R. Article: Design of Fuzzy Logic Controller for Lateral Dynamics Control of Aircraft by Considering the Cross-Coupling Effect of Yaw and Roll on Each Other. International Journal of Computer Applications 47(13):44-48, June 2012. Full text available. BibTeX

	author = {Vishnu G Nair and Dileep M V and Prahalad K R},
	title = {Article: Design of Fuzzy Logic Controller for Lateral Dynamics Control of Aircraft by Considering the Cross-Coupling Effect of Yaw and Roll on Each Other},
	journal = {International Journal of Computer Applications},
	year = {2012},
	volume = {47},
	number = {13},
	pages = {44-48},
	month = {June},
	note = {Full text available}


In this paper, we explore fuzzy logic approach for lateral control of aircrafts. Here the effect of roll on yaw and that of yaw on roll is taken into account. The dynamic modeling of lateral control system that controls the lateral dynamics of an aircraft. is presented. The aircraft being considered in this work is a standard NAVION Transport aircraft [1]. A suitable mathematical model to describe the dynamics of an aircraft is derived. A single fuzzy controller is designed which will control both yaw and roll of the aircraft simultaneously. In this paper the transfer functions for yaw and roll is derived and their effects on each other is taken into account so that the system will have greater accuracy and efficiency than the application of two separate controllers. This design is very cost effective and will significantly reduce instability and increases maneuverability. Simulation results for the response of lateral controller are presented in time domain. Finally, the performance of lateral control system is analyzed based on common criteria of step's response.


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