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Performance of an aircraft tire under cyclic braking and of a currently operational antiskid braking systemAn experimental investigation was conducted to study the performance of an aircraft tire under cyclic braking conditions and to study the performance of a currently operational aircraft antiskid braking system. Dry, damp, and flooded runway surface conditions were used in the investigation. The results indicated that under cyclic braking conditions the braking and cornering-force friction coefficients may be influenced by fluctuations in the vertical load, flexibility in the wheel support, and the spring coupling between the wheel and the tire-pavement interface. The cornering capability was shown to be negligible at wheel slip ratios well below a locked-wheel skid under all test surface conditions. The maximum available brake-force friction coefficient was shown to be dependent upon the runway surface condition, upon velocity, and, for wet runways, upon tire differences. Moderate reductions in vertical load and brake system pressure did not significantly affect the overall wet-runway performance of the tire.
Document ID
19720016364
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Technical Note (TN)
Authors
Tanner, J. A. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 2, 2013
Publication Date
May 1, 1972
Subject Category
Aircraft
Report/Patent Number
L-7640
NASA-TN-D-6755
Accession Number
72N24014
Funding Number(s)
PROJECT: RTOP 133-61-12-01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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