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The Journal of Wheel/Rail Interaction
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Taking the Long View: 20 Years of Wheel/Rail Interaction (Part 2 of 2)

April 22, 2014 | Filed under: Friction Management, Heavy Haul, Measurement Systems, Rail Maintenance, Track Geometry, Vehicle/Track, Wheel/Rail Interaction

Part 2. Friction Management, Vehicle Suspension and Measurement Systems By Bob Tuzik, April 2014 Part 1 of this article explored advances in metallurgy, wheel/rail profile design and maintenance practices. Part 2 continues the theme, examining the technologies and techniques that have shaped our understanding of wheel/rail interaction. While the practice of …

What Kind of Rail Materials Will Survive in Heavy-Haul Service? (Part 1 of 2)

January 29, 2014 | Filed under: Heavy Haul

By James R. Hornaday, Jr. In many ways, rail is the most important component in a railroad system. The economic value of installed rail is usually the most costly asset listed in any railroad’s financial accounts. The financial stability of a railroad is often determined by how well that installed …

Truck Warp: The Causes and Cures (Part 1 of 2)

January 29, 2014 | Filed under: Vehicle/Track

By Gary P. Wolf Whether you are primarily interested in the track or the vehicle side of the wheel/rail interface, the effects of “truck warp” should be of interest to you. This two-part article examines the impact of warp in the overall operating environment. Part 1 examines what truck warp …

Applying Quality Concepts to the Wheel/Rail Interface (Part 3 of 3)

January 29, 2014 | Filed under: Rail Grinding, Rail Maintenance

By Stephen S. Woody Part 1 of this article examined the results of a six-sigma project that Norfolk Southern initiated to improve the efficiency of its grinding program. Part 2 illustrated some the data analysis-related problems that NS experienced and learned from during other six-sigma projects. Part 3 describes two ideas …

Taking the Long View: 20 Years of Wheel/Rail Interaction (Part 1 of 2)

January 8, 2014 | Filed under: Rail Grinding, Track Geometry, Wheel/Rail Interaction, Wheel/Rail Profile

Part 1. Metallurgy, Wheel/Rail Profile Design and Maintenance. by Bob Tuzik, January 2014 Ask a group of railroaders, researchers or suppliers what the essential aspects of understanding wheel/rail interaction have been over the past 20 years, and you’ll get a host of answers. But among them, major categories consistently emerge: …

Using Performance-Based Assessment of Reserve Gauge Strength to Enhance Tie-Replacement Planning

January 4, 2014 | Filed under: Track Geometry

By Robert Madderom Technology has changed the ways in which railroads plan most of their maintenance programs over the past 30 years. But one aspect of maintenance planning has remained static. Railways still select ties for replacement and plan a significant portion of their maintenance budgets based on visual inspections by …

What Kind of Rail Materials Will Survive in Heavy-Haul Service? (Part 2 of 2)

January 4, 2014 | Filed under: Heavy Haul

By James R. Hornaday, Jr. See Part 1 of this article. Contrary to many railroaders’ and rail mills’ opinions, there are no innocuous inclusions in rail. Any simple oxide particle, any complex oxide particle, any sulfide particle, or any complex oxide-sulfide particle in a rail will initiate a crack in …

Understanding the Effects of Track Gauge, Wheel/Rail Geometry and Friction on Stresses at the Wheel/Rail Interface

January 4, 2014 | Filed under: Friction Management, Track Geometry, Wheel/Rail Interaction, Wheel/Rail Profile

By Jude Igwemezie, Ph.D., P.Eng. Over the years, rail grinding has become more the norm than the exception as the rail industry has recognized that damaged materials on the rail and wheel contact surfaces must be addressed before they become a bigger problem. The art of rail grinding has also progressed …

Meeting the Industry’s Technology Goals

January 4, 2014 | Filed under: Friction Management, Measurement Systems, Wheel/Rail Interaction

by Bob Tuzik, January, 2008 The wheel/rail interface must be managed in order to increase the life of rail and rolling stock components and to reduce in-service failures. This was one of the primary messages delivered at the Association of American Railroads/Transportation Technology Center, Inc.’s 14th Annual Research Review. The research …

Rail Cant Measurement of Concrete Crossties (Part 2 of 2)

January 4, 2014 | Filed under: Measurement Systems, Rail Cant, Track Geometry

By Arthur Clouse Part 1 of this article examined the mechanisms that cause rail seat abrasion on concrete ties. Part 2 looks at existing standards for concrete ties and the systems that can be used to measure their performance. The Federal Track Safety Standards prescribe minimum track geometry and track structure requirements for specific track …

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