Technical Reports

Eastern European Track Structure Technology and Research

Cooperative agreements between the United States and the Eastern European countries of Poland, Hungary and Romania provide for the exchange of technical research and operational railroad information. To obtain on site, as well as published information on topics of specific interest to the...

Dynamic Analysis of a Vehicle/Bridge System for Calculation of Impact Loads

A mathematical model to obtain various generalized physical properties, such as mass, stiffness, damping and loads, has been derived to evaluate the dynamic response of a coupled vehicle(s)/bridge system. The analytical results, in terms of inertial-load and deflection increments, were interpreted...

Dual-Mode Locomotive Systems Engineering Volume II: Detailed Descriptions and Analysis

This report, Volume II, provides a detailed description of the analysis of the dual mode locomotive (DML) systems engineering.study undertaken as Phase I of a proposed five-phase program. The intent of the overall DML program is the development, in-service demonstration, and ultimate deployment of...

Design Studies on Iron-Core Synchronously Operating Linear Motors

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Dead Line Testing of Pantographs on the RTT Catenary System

The tests described in this report were carried out by the Transportation Test Center to verify the newly constructed overhead catenary system on the Railroad Test Track (RTT) and the pantographs to be used on it. The data produced included height and stagger measurements in support of the...

Angle of Attack and Wheel-Rail Wear

Angle of attack is one of the most important parameters influencing wheel and rail wear. Some experiments conducted on the IIT-GMEMD 1/4.5 test facility to study wear of wheels and rails are reported. The angle of attack range covered is from 6=0.25° to 6=1.00°. The drastic reduction in wheel...

An Experimental Evaluation of a Full-Scale Single-Sided Linear Induction Motor with Different Reaction Rails: Volume II - Supplementary Data

This document presents supplementary data to Volume I: Test Results. It contains computer plots of all valid onboard data processed for 125 test runs, including baseline reaction rail tests for the 10- and 5-pole SLIM with dc and ac excitation, and solid iron reaction rail tests for the 10-pole...

An Experimental Evaluation of a Full-Scale Single-Sided Linear Induction Motor with Different Reaction Rails: Volume I - Test Results

This document is the final volume in a series of reports presenting the results of an extensive test program involving the linear induction motor research vehicle (LIMRV). Specifically, this report describes the final LIMRV test activity with a single-sided linear induction motor (SLIM). The...

An Evaluation of the Costs and Benefits of Railroad Electrification

This report, responds to issues raised in Section 901(7) of the Railroad Revitalization and Regulatory Reform Act (4R Act) and discusses how electrification might contribute to or detract from meeting the objectives of this Act. This report is primarily limited to an evaluation of the potential...

A Perspectival Review of Rail Behavior at the Facility for Accelerated Service Testing

The rail metallurgy tests which have been undertaken at the Facility for Accelerated Service Testing (FAST) are described. The best of the premium metallurgies has been found to wear approximately three to four times better than standard rail in the unlubricated regime. In the lubricated regime,...

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Technical Reports