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Aircraft flight characteristics inconditions of windshear and icing

Published online by Cambridge University Press:  03 February 2016

Yihua Cao  and
Kungang Yuan
Yihua Cao
Affiliation:
Institute of Aircraft Design, Beijing University of Aeronautics and Astronautics, Beijing, China
Kungang Yuan
Affiliation:
Institute of Aircraft Design, Beijing University of Aeronautics and Astronautics, Beijing, China
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Abstract

Complex weather conditions, especially windshear andicing encounter, have severe effects on aircraftflight safety. The effect of low-altitude windshearand ice accretion on aircraft performance andcontrol has been studied in this paper. With theemployment of a windshear model and nonlinearinverse dynamics (NID) method, a low-altitudewindshear penetration flight control law isdesigned. The effect of ice accretion was modeled onthe stability and control of an aircraft. Severalicing parameters are imported to the smalldisturbance flight dynamics model to calculate thechange of performance, stability and controlderivatives between clean and iced aircraft. Thesederivatives were used to calculate the elevator, theaileron and the rudder step responses to investigatethe icing effect.

The simulation results indicate that the NID controllogic works effectively in the trajectory control ofthe aircraft during the penetration of windshear.The method used to study the effect of ice accretionon aircraft is valid and it can provide data forreal-time calculation for icing encounter.

Information

Type
Research Article
Information
The Aeronautical Journal , Volume 111 , Issue 1115 , January 2007 , pp. 41 - 49
Copyright
Copyright © Royal Aeronautical Society 2007 

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