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
  • Jian Sun
  • David Davis
Tags:
  • high-carbon weld metals made by FCAW
  • lmiiting width of weld bead
  • low-carbon weld metal made by SMAW
  • temperature control
Date Posted:
By
  • Richard Reiff
  • Steven Clark
  • Mike Armstrong
Tags:
  • modified set of angle bars held in place by C-clamps
  • reduce repair costs & reduce train delays
Date Posted:
By
  • David Davis
  • Richard Reiff
  • Michael Joerms
  • Joy Cooke
Tags:
  • FBF
  • no damage to wheels
Date Posted:
By
  • Kevin Sawley
  • Jian Sun
Tags:
  • CANMET
  • EMS practices
  • no effect on ultimate tensile strength
  • reduction in ductility of longitudinal weld samples
  • uniform & beneficial overall grain structure
Date Posted:
By
  • Thomas Guins
  • William Robert
  • Carl Martland
Tags:
  • additional track maintenance
  • require fewer trains
  • route-specific
Date Posted:
By
  • David Davis
  • William Drish Jr.
Tags:
  • analysis tools
  • eliminate speed restrictions
  • impact loadings
  • reduce train delays
Date Posted:
By
  • Gerald Anderson
  • Richard Smith
Tags:
  • accelerometer vibrations
  • acoustic emissions
  • hot bearing detector (HBD)
Date Posted:
By
  • Peter Rogers
  • Diana Oliva-Maal
  • Duane Otter
Tags:
  • helper stringers & reduction of average chord deflections
Date Posted:
By
  • Peter Rogers
  • Duane Otter
  • Terry Wipf
  • Mike Ritter
  • Doug Wood
Tags:
  • glued laminated stringers
  • solid-sawn stringer replacement
  • steel-plate ballasted deck
Date Posted:
By
  • Dingqing Li
  • Joy Cooke
  • William Shust
Tags:
  • ballast tamping operations
  • crosstie types
  • dynamic track stabilizers
  • track lateral strength
  • traffic induced strength recovery
  • wood-tie track
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