Technical Reports

A Review of Measurement Techniques, Requirements, and Available Data on the Dynamic Compliance of Railroad Track

The need for increasing train speeds and operating safety while reducing track maintenance is responsible for much of the current research on track structures, vehicle dynamics, and vehicle/track interaction. This report covers Phase I of a 3-phase program to design and fabricate equipment for...

12th Annual Railroad Conference Proceedings, "Effect of Heavy Axle Loads on Track"

Proceedings of the 1975 Railroad Engineering Conference held at Pueblo, Colorado, October 23 and 24, 1975. Sessions included track developments, suspension developments and track/train interaction. Eighteen papers were presented by authors from the United States, Canada, Mexico and Europe.

Review of Proposed Specifications Relating to the Shipment of Ethylene in Tank Cars at Cryogenic Temperatures

This report reviews proposed specifications and shipper regulations for 113 series tank cars for transporting liquid ethylene at cryogenic temperatures. The study was limited in scope and was to be directed primarily at the holding time requirements necessary for safe shipment of the commodity....

Railroad Research Bulletin Autumn 1973: Volume I, Number 2

This publication contains 1,647 abstracts of journal articles and research reports selected by RRIS from current railroad literature and 160 summaries of ongoing research activities in the railroad field. The material covers the entire range of railroading from technology to operations,...

Railroad Research Bulletin Spring 1974: Volume I, Number I

Download PDF Document [281.2 MB]

Introduction to the Application of the DYNALIST Computer Program to the Analysis of Rail Systems Dynamics

DYNALIST, a computer program that extracts complex eigenvalues and eigenvectors for dynamic systems described in terms of matrix equations of motion, has been acquired and made operational at TSC. In this report, simple dynamic systems are used to define the DYNALIST terminology. Input...

Instrumentation for Measurement of Forces on Wheels of Rail Vehicles

The information in this report covers the procurement, development and testing of instrumentation designed to measure the dynamic forces and temperatures which are created in the wheels of a loaded rail vehicle truck. The information contained herein is intended for use by scientific, research...

Guidelines for Enhancement of Visual Conspicuity of the Trailing End of Trains

This report summarizes a comprehensive study of potential means of reducing the probability of train-train collisions through enhancement of the visual conspicuity of the trailing end of trains. The basic function requirements and constraints for such devices are set forth, followed by a review...

Development of Analytic Fire Models

This report describes the progress from June 17, 1974 to September 16, 1974, in a project to develop analytic models of pool fires and torch fires.

Characterization of Drawgear Systems During Coupler Angling

This reference manual on lateral force characteristics of various types of draft gears and couplers under draft and buff loads during angling was developed as part of the Track-Train Dynamics Program. Data from these tests can be used in several TTD mathematical models, particularly the Lateral...

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Technical Reports