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24
Jul
2014
Technical Reports
Multifunction LIDAR Sensors for Noncontact, Speed, and Complex Rail Dynamics
Subject
Track,
Tracks & Structures,
Track/Train Interactions
Keywords: LIDAR, noncontact velocity measurement, curvature, alignment, ATGMS, track geometry, Railway Technologies Laboratory, Virginia Tech
Abstract: The results of an extensive series of tests are presented to evaluate the viability and applicability of LIDAR systems for measuring track speed, distance, and curvature in...
Report Number
DOT/FRA/ORD-14/26
Office
RDI-21
24
Jul
2014
Technical Reports
Rail Base Corrosion and Cracking Prevention
Subject
Track,
Tracks & Structures,
Track/Train Interactions
Keywords: Rail base corrosion, corrosion, corrosion treatments, fatigue, rail life
Abstract: Rail base corrosion combined with fatigue or damage can significantly reduce rail life. Studies were done to examine the relative contribution of damage, corrosion, and fatigue on...
Report Number
DOT/FRA/ORD-14/27
Office
RDI-21
18
Jul
2014
Technical Reports
Load Environment of Rail Joint Bars—Phase II Joint Bar Service Environment and Fatigue Analysis
Subject
Track,
Tracks & Structures,
Track/Train Interactions
Keywords: Strain levels, joint bar fatigue analysis, residual stress, joint bar strength
Abstract: Detailed analysis of measured bending strains shows that the foundation deflections have the most significant effect on the magnitude of strains. All other factors, such as track...
Report Number
DOT/FRA/ORD-14/22
Office
RDI-21
8
Jul
2014
Technical Reports
A Study of the Use of Bio-Based Technologies (Lubricant and Grease) in Railroad Applications
Subject
Environmental Protection,
Freight Operations,
Rail and Infrastructure Integrity,
Rolling Stock,
Track
Keywords: bio-based, biodegradable, rail curve grease, grease, rolling stock, lubrication, friction reduction, mineral oil-based grease, hydraulic oil
Abstract: The objective of the project was to study the efficacy of using bio-based lubricant and grease technologies in railroad applications (locomotives and maintenance of way equipment...
Report Number
DOT/FRA/ORD-14/11
Office
RRD
4
Apr
2014
Technical Reports
Quantification of the Effectiveness of Handheld Equipment for Ground Verification of Detected Rail Internal Defects
Subject
Rail and Infrastructure Integrity,
Track,
Tracks & Structures
Keywords: Ultrasonic phased arrays, conventional ultrasonic, rail flaw sizing, nondestructive testing
Abstract: The objective of this project was to quantify the effectiveness of the rail inspection ground verification process. More specifically, the project focused on comparing the...
Report Number
DOT/FRA/ORD-14/07
Office
RRD