00495152

Component

http://onlinepubs.trb.org...trr/1989/1241/1241-005.pdf

https://scholar.google.co...midt&publication_year=1989

It has been a well-established fact that excessive wheel/rail loads cause accelerated wheel/rail wear, truck component deterioration, track damage, and increased potential for derailment. The economic and safety impact of the increased wheel rail loads can only be ascertained by a total characterization of the wheel/rail loads. In this paper, a comprehensive set of experimental results obtained from on-track testing of conventional North American freight cars using both wayside and on-board measurement systems are presented. The particular emphasis is given to the wheel/rail loads resulting from suspension dynamics. The dynamic wheel/rail environment addressed in this paper is limited to dynamic performance regimes such as rock-and-roll and pitch-and-bounce, hunting, and curving. The strong dependence of the dynamic response of a railway vehicle on a truck suspension system has been illustrated by comparison of controlled test results for vehicles of different types.

This paper appears in Transportation Research Record No. 1241, Railroad Transportation Issues. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

01492693

p. 34-52

1989

Transportation Research Record

0309049652

Figures (31) ; Photos (1) ; References (19)

Car trucks (Railroads); Car wheels (Railroads); Derailments; Dynamics; Freight cars; Loss and damage; Railroad rails; Suspension systems; Testing; Train track dynamics; Wear; Wheels

Design; Highways; Railroads; Vehicles and Equipment

TRIS, TRB

Jun 30 1990 12:00AM

• BEARING CAPACITY APPROACH TO RAILWAY DESIGN USING SUBGRADE MATRIC SUCTION
• DETAILED INSPECTION OF U.S. ARMY RAILROAD TRACKAGE AND APPLICATION TO CIVILIAN SHORT-LINE RAILROADS
• EXPERT SUPPORT SYSTEM FOR MODIFICATION OF RAILROAD CAR SERVICE RULES
• MULTIDIMENSIONAL MODEL SYSTEM FOR INTERCITY TRAVEL CHOICE BEHAVIOR