NDLI: Some wear studies on aircraft brake systems

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Some wear studies on aircraft brake systems

Content Provider	NASA Technical Reports Server (NTRS)
Author	Ho, T. L.
Copyright Year	1975
Description	An initial investigation of worn surfaces in friction pads and steel rotors used in current aircraft brakes was carried out using electron microprobe and X-ray diffraction analysis. It consists of the topographical study and the analysis of chemical element distribution. Based upon this initial examination, two approaches, microscopic and macroscopic have been conducted to interpret and formulate the wear mechanism of the aircraft brake materials. Microscopically, the wear particles were examined. The initiation and growth of surface cracks and the oxidation were emphasized in this investigation. Macroscopically, it has been found that, for the current copper based brake material sliding against 17-22 AS steel in a caliper brake, the surface temperature raised due to frictional heat is nonlinearly proportional to the load applied and slide time with speed at 1750 rpm. The wear of brake materials is then proportional to this temperature and is also a function of the melting temperature for copper.
File Size	3457269
Page Count	79
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19760024439
Archival Resource Key	ark:/13960/t7dr7n00j
Language	English
Publisher Date	1975-10-01
Access Restriction	Open
Subject Keyword	Mechanical Engineering Systems Engineering Wear Rotors Fusion Melting Aircraft Brakes Mathematical Models Wheel Brakes Wear Tests X Ray Diffraction Dry Friction Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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