INVESTIGATION OF SERVICE STRESSES IMPOSED ON WHEELS UNDER DIESEL LOCOMOTIVES
Laboratory tests were made to evaluate service stresses imposed on wheels under diesel locomotives. Wheels of AAR standard A-40 and F-36 design and a F-36 wheel machined as nearly as possible to a definite contour were subjected to static and vertical load tests. Vertical loads of 60,000 lb. were applied at two positions on the wheel tread, and a lateral load of 20,000 lb. was applied at the flange. Heat was applied to the wheel tread to simulate that produced by brake shoe action. Additional tests were made on the A-40 wheel wherein this wheel was subjected to actual brake shoe heating in the laboratory. The conclusions are as follows: type A-40 and F-36 diesel wheels are stressed to extremely high levels as a result of heating; stresses due to vertical and lateral loading are relatively low; and, a lateral load tends to produce higher stresses in a thinner plate section.
Assoc of American Railroads Research Center3140 South Federal Street
Chicago, IL United States
- Publication Date: 1955-1
- Features: Appendices; Figures; Photos; Tables;
- Pagination: 115 p.
- TRT Terms: Braking; Diesel locomotives; Loads; Locomotives; Stresses; Technology; Thermal stresses; Wheel rims
- Uncontrolled Terms: Contact stress; Lateral loads; Vertical loads
- Geographic Terms: United States
- Subject Areas: Railroads; Vehicles and Equipment;
- Accession Number: 00040193
- Record Type: Publication
- Report/Paper Numbers: MR-235 Prog Rpt
- Files: TRIS
- Created Date: Jul 8 1994 12:00AM