PROPOSED SOLUTIONS TO THE FREIGHT CAR TRUCK PROBLEMS OF FLANGE WEAR AND TRUCK HUNTING
This paper reports on the progress of a development program whose objective is to devise cost effective solutions to the problems of excessive flange wear and truck hunting. It is expected that later papers will deal with separate aspects of this program in greater detail. Three solutions for freight cars are proposed: (1) a retrofit steering assembly kit for application to the trucks of existing roller bearing cars, (2) modification of the side frame and bolster castings to incorporate a more cost effective steering assembly for new trucks and (3) a completely new truck design incorporating improvements in car suspension as well. All three designs include a steering feature which will reduce wheel and rail wear in curves and elminate truck hunting. The second and third designs also provide better brake shoe/wheel alignment for additional savings in wheel wear. The appendices define the terminology used and identify the design characteristics of conventional trucks which lead to the present high cost of ownership.
- This paper was contributed by the Rail Transportation Division of the ASME for presentation at the Winter Annual Meeting, Houston, Texas, November 30-December 4, 1975.
American Society of Mechanical EngineersTwo Park Avenue
New York, NY United States 10016-5990
- List, H A
- Caldwell, W N
- Marcotte, P
- Publication Date: 1975-7
- Features: Appendices; Figures;
- Pagination: 7 p.
- TRT Terms: Bolsters; Brake shoes; Cost effectiveness; Flanges; Force; Hunting (Dynamics); Suspension systems; Train track dynamics; Trucks; Vehicle design; Wear; Wheels
- Old TRIS Terms: Truck and bolster systems; Wheel flange forces
- Subject Areas: Design; Motor Carriers; Railroads; Vehicles and Equipment;
- Accession Number: 00128632
- Record Type: Publication
- Source Agency: American Society of Mechanical Engineers
- Report/Paper Numbers: 75-WA/RT-8
- Files: TRIS
- Created Date: Jan 14 1976 12:00AM