Braking Availability Tester for Realistic Assessment of Aircraft Landing Distance on Winter Runways
Publication: Journal of Aerospace Engineering
Volume 28, Issue 4
Abstract
This paper is concerned with the development of a new measurement device for the realistic assessment of braking capability of landing airplanes for winter runways. The conventional and current practice of runway condition monitoring has been focused on identifying the maximum tire-pavement frictional drag ( value) and often neglected the characteristics of actual aircraft braking systems as well as the comprehensive effects coming from various factors such as deformable contaminants on the winter runway. The braking availability tester (BAT) proposed in this paper is designed to take a different approach for the realistic assessment of braking availability of landing airplanes. The main idea of the BAT is to mimic the braking operation of actual aircrafts as closely as possible by incorporating the same brake mechanism and antiskid braking system (ABS) used in existing aircrafts. In doing so, the BAT also incorporates a suite of sensors for monitoring the status of braking operation in real time. This paper details the design concepts and operation principles of the BAT. Preliminary test results are also presented to verify the main functionality of the BAT.
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Acknowledgments
The authors would like to acknowledge Team Eagle Ltd. and the Ontario Centers of Excellence (OCE) for the financial support for this project. Team Eagle Ltd. also conducted the initial design and manufacture of the BAT. The authors would like to thank Joe Breen and other members at the FAA for valuable discussions and sharing their approach of using the aircraft ABS for contaminated runways and the nose tire for instrumentation. The aircraft braking algorithm has been provided by Arnold Beck at the Meggit Aircraft Braking Systems Corp. National Instruments (NI) provided some support on realitime hardware.
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Information
Published In
Journal of Aerospace Engineering
Volume 28 • Issue 4 • July 2015
Copyright
© 2014 American Society of Civil Engineers.
History
Received: Feb 1, 2013
Accepted: Nov 7, 2013
Published online: Nov 9, 2013
Discussion open until: Dec 22, 2014
Published in print: Jul 1, 2015
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