CSX Transportation has purchased, installed and integrated eight Optical Geometry Detector sites. These detectors measure the wheelset’s angle of attack and lateral position with respect to the tangent track upon which they pass. The objective of this project was to determine the source of extreme geometry measurements. CSX performed 19 teardowns of cars that were identified by the optical geometry system. Many other cars with geometry exceptions have also had close inspections at the repair tracks. This report will summarize how the defects found relate to the geometry exception. CSX has primarily looked at trucks with progressive and repeatable tracking problems, which cover 87% of the geometry exceptions. Key truck measurements recorded include: circumferential wheel tape size, digital wheel profiles, side bearing set up height, center bowl dimensions, side frame length and the distance between the thrust lugs. Many of the geometry exceptions seem to have been caused by mismatched (or asymmetrical worn) wheels. Differences in the circumference force the axle to shift laterally and allow the wheel to continually flange on the gauge side of the rail.
Skip Nav Destination
ASME 2009 Rail Transportation Division Fall Technical Conference
October 20–21, 2009
Fort Worth, Texas, USA
Conference Sponsors:
- Rail Transportation Division
ISBN:
978-0-7918-4894-4
PROCEEDINGS PAPER
Geometry Detector Teardown Results at CSX Available to Purchase
Kim Bowling
Kim Bowling
CSX Transportation, Jacksonville, FL
Search for other works by this author on:
Kim Bowling
CSX Transportation, Jacksonville, FL
Paper No:
RTDF2009-18026, pp. 105-110; 6 pages
Published Online:
February 16, 2010
Citation
Bowling, K. "Geometry Detector Teardown Results at CSX." Proceedings of the ASME 2009 Rail Transportation Division Fall Technical Conference. ASME 2009 Rail Transportation Division Fall Technical Conference. Fort Worth, Texas, USA. October 20–21, 2009. pp. 105-110. ASME. https://doi.org/10.1115/RTDF2009-18026
Download citation file:
10
Views
Related Proceedings Papers
Related Articles
Wheel∕Rail Two-Point Contact Geometry With Back-of-Flange Contact
J. Comput. Nonlinear Dynam (January,2009)
Energy Savings Due to Wheel/Rail Lubrication—Seaboard System Test and Other Investigations
J. Eng. Ind (May,1985)
Influence of Axle Load, Track Gage, and Wheel Profile on Rail-Vehicle Hunting
J. Eng. Ind (February,1977)
Related Chapters
Inspection and Maintenance of Ageing Concrete Oil and Gas Structures on the Norwegian Continental Shelf
Ageing and Life Extension of Offshore Facilities
Introduction
Computer Vision for Structural Dynamics and Health Monitoring
Hydrodynamic Lubrication
Design of Mechanical Bearings in Cardiac Assist Devices