Technology Digests

MxV Rail’s Technology Digest e-Library spans over 30 years of research and testing for the Association of American Railroads (AAR). This work was made possible by the support of the AAR and its member railroads, as well as additional partners including the Federal Railroad Administration, suppliers and vendors, and allied universities.

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1,148 Technology Digests

Date Posted:
By
  • John Leary
Tags:
  • 125-ton double stack intermodal cars
  • inner rail
  • inner rail in curves
Date Posted:
By
  • Britto Rajkumar
  • Daniel Stone
Tags:
  • 100-ton coal cars
  • braking and adhesion conditions
  • wheel sliding
  • wheel spalling
Date Posted:
By
  • Firdausi Irani
Tags:
  • AAR freight car certification procedures
  • adverse car dynamic behavior
  • measured responses
  • roll angle
  • wheel unloading
Date Posted:
By
  • Semih Kalay
  • Ali Tajaddini
Tags:
  • long wavelength divots
  • measured impact loads
  • out-of-round wheels
Date Posted:
By
  • Semih Kalay
  • W.P. O’Donnell
Tags:
  • track failure modes
  • track gage widening
Date Posted:
By
  • Firdausi Irani
Tags:
  • Bunched spiral
  • Chapter XI criteria
  • limiting spiral
  • measured wheel and axle forces
  • spiral design
Date Posted:
By
  • Semih Kalay
  • Ali Tajaddini
Tags:
  • axle and car body accelerations
  • instrumented track sections
  • roller bearing loads
  • tangent and curved track
  • wheel impact load tests
Date Posted:
By
  • Semih Kalay
  • Satya Singh
Tags:
  • 33-ton axle loads
  • 39-ton axle loads
  • lateral load level
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