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Aircraft flight characteristics in conditions 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 and icing encounter, have severe effects on aircraft flight safety. The effect of low-altitude windshear and ice accretion on aircraft performance and control has been studied in this paper. With the employment of a windshear model and nonlinear inverse dynamics (NID) method, a low-altitude windshear penetration flight control law is designed. The effect of ice accretion was modeled on the stability and control of an aircraft. Several icing parameters are imported to the small disturbance flight dynamics model to calculate the change of performance, stability and control derivatives between clean and iced aircraft. These derivatives were used to calculate the elevator, the aileron and the rudder step responses to investigate the icing effect.

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

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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