Technical Reports

Amtrak/Knorr Disc Brake Study : Volume 1 - Final Report

  • 01
  • Sep
  • 1980
AUTHOR: R. Scofield, R. Avant
OFFICE: RPD
REPORT NUMBER: FRA/ORD-80/ 62.1
SUBJECT: Amtrak, Braking Systems
KEYWORDS: RMS g-level analysis, RMS spectral analyis, Brake forces
ABSTRACT: This report describes the Amtrak/Knorr Disc Brake Study which was developed: (1) To evaluate candidate replacement disc brakes for the Knorr discbrakes presently in use on Amfleet and Turboliner cars. (2) To explain the cause of the loosening of the attaching pins and the excessive wear experienced by the disc-brake friction ring on the Knorr disc brakes. (3) To find out why the disc brake failure rate was much higher when the outside temperature was below 32 degrees Fahrenheit. This report covers the first six months of a three-year controlled revenue service test, an over-the-road test, and laboratory tests to correlate over-the-road test results to pin wear.

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