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
  • Duane Otter
  • Joseph LoPresti
  • Douglas Foutch
  • Daniel Tobias
Tags:
  • applied tractive effort
  • high-adhesion AC locomotive
  • longitudinal forces
  • rail anchoring conditions
Date Posted:
By
  • Steven Chrismer
Tags:
  • assessment methods
  • lower track life cycle costs
  • tools and methods to identify substructure problems
Date Posted:
By
  • Kenneth Rownd
  • Curtis Urban
  • Darrell Iler
Tags:
  • acceleration performance
  • advanced suspension designs
  • conventional multi-level railcars
Date Posted:
By
  • Kenneth Rownd
  • Curtis Urban
  • Darrell Iler
Tags:
  • advanced suspensions
  • conventional suspensions
  • multi-level railcars
  • premium suspensions
Date Posted:
By
  • David Davis
  • Peter Rogers
  • Vincent Terrill
  • Daniel Mesnick
Tags:
  • crack frog
  • crossing angle
  • failed substructure
  • high-angle diamonds
  • loss of vertical alignment and stability
  • maintenance
  • speed
  • tonnage
Date Posted:
By
  • William Sneed
  • Gerald Anderson
  • Richard Smith
Tags:
  • graphic comparison of vibration spectra
Date Posted:
By
  • Vinaya Sharma
  • Weiping Xu
  • Duane Otter
Tags:
  • axial
  • bending
  • floor beams
  • HAL car weights
  • hangers
  • shear strains
  • stringers
  • vertical wheel loads
Date Posted:
By
  • Vinaya Sharma
  • Weiping Xu
  • Duane Otter
Tags:
  • 84-feet span
  • fatigue analysis
  • fatigue model
  • interior floor beams
  • stringers
  • traffic volume
Date Posted:
By
  • Steven Chrismer
  • Steven Clark
Tags:
  • continuous action (CAT) and design lift tamping
  • durable smoothing
Date Posted:
By
  • Joseph LoPresti
  • Duane Otter
  • David Davis
Tags:
  • broken wing rail
  • explosion hardened castings
  • impact forces
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