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Embankment Support for Kansas Test Track- Analysis of Embankment Instrument Data

Static and dynamic data collected from the embankment instrumentation at the Kansas Test Track are summarized in this report. The static data included permanent horizontal and vertical deformation measurements, moisture contents, and temperatures taken at intervals between the end of embankment...

Design and Testing of a 12,000 KVA Linear Induction Motor and Power Converter

This report presents pertinent technical data on the design, development, fabrication, and testing of the linear induction motor propulsion system (LIMPS). The LIMPS is designed to convert constant-voltage, constant-frequency, 3-phase, 60-Hz, 8250-V, wayside electrical power to a variable-voltage,...

Design and Analysis of a Track Compliance Measurement System

This report covers the design of a vehicle for measuring the static and dynamic compliance of railroad track. The static compliance system uses the rail deflections due to different axle loads to calculate the track compliance. The static compliance measurements are taken continuously as the...

Describing Function Techniques for the Non-Linear Analysis of the Dynamics of a Rail Vehicle Wheelset

The describing function method of analysis is applied to investigate the influence of parametric variations on wheelset critical velocity. In addition, the relationship between the amplitude of sustained lateral oscillations and critical speed is derived. The non-linearities in the model include...

Cost Effectivieness of Research and Development Related to Railroad Electrification in the United States

The object of this report is to determine the impact of research and development on railroad electrification in the United States. It is presumed that electrification is economically viable and that a prior commitment has been made to· electrifying the high density mainlines. Research and...

Correlation of Statistical Representations of Track Geometry with Physical Appearance

Railway track has previously been represented as a random process with certain parameters that relate to the quality of the track. This report helps to make these parameters more meaningful by correlating the random process and its parameters with more familiar descriptions of the track. The...

Comparative Analysis of Dynamics of Freight and Passenger Rail Vehicles

During the course of this contract, analytical studies have been conducted on several different rail vehicles typical of North American railroad operations mathematical models, and computer codes for the mechanization of these models have been generated under this contract to provide a predictive...

Chopper Propulsion System for Electric Locomotives

This preliminary report summarizes the work done during Phase I of contract DOT-FR-9027. This program covers the design and retrofit of a Conrail E44 electric locomotive with a chopper drive system. The chopper system was previously developed by the General Electric Company at its Erie facility and...

Brake System Design Optimization- Volume I: A Survey and Assessment

Existing freight car braking systems, components, and subsystems are characterized both physically and functionally, and life-cycle costs are examined. Potential improvements to existing systems previously proposed or available are identified and described in functional and economic terms....

Anti-Derailment Sensor System Phase I Feasibility Study

In the context of items of hardware which have been developed for military use, principal causes of derailments were studied to determine those amenable to anticipation detection or by onboard sensors. Other elements for relaying sensor outputs and taking appropriate action to prevent or...

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