Discussion: “Effect of Design Variation on Service Stresses in Railroad Wheels” (Bruner, J. P., Jones, R. D., Levy, Samuel, and Wandrisco, J. M., 1968, ASME J. Eng. Ind., 90, pp. 187–196)

1968 ◽  
Vol 90 (4) ◽  
pp. 747-748
Author(s):  
F. E. King
Keyword(s):  
Design Variation ◽  
Railroad Wheels

A Computer Program for Determining the Effect of Design Variation on Service Stresses in Railroad Wheels

1966 ◽  
Vol 88 (4) ◽  
pp. 352-357 ◽  
Author(s):  
Malcolm S. Riegel ◽  
Samuel Levy ◽  
John A. Sliter
Keyword(s):  
Experimental Stress ◽  
Test Results ◽  
Brake Shoe ◽  
Iron And Steel ◽  
Railroad Industry ◽  
Specific Effects ◽  
Computer Analyses ◽  
Design Variation ◽  
Tractional Forces ◽  
Railroad Wheels

Two computer analyses have been prepared relating service stresses in railroad wheels to wheel shape and dimensions. One program computes the temperature distribution and stresses due to heat input by brake shoe friction at the wheel tread. The other computes stresses due to lateral, vertical, and tractional forces between the wheel and rail. Both programs have been validated for certain known conditions using theoretical solutions and are in agreement with available design and experimental stress data to the degree that differences in wheel geometry and loading conditions permit a comparison with experimental stress data. The next step contemplated is better experimental confirmation by computations for specific wheels and loadings for which test results are available and use of the programs to study trends resulting from, changes in wheel geometry and dimensions. This work is directed toward optimization of wheel design, and elucidation of the nature and specific effects of excessive service loads. This research program is being sponsored at General Electric by the manufacturers of wrought steel wheels, through the American Iron and Steel Institute, as a service to the American railroad industry.

Effect of Design Variation on Service Stresses in Railroad Wheels

1968 ◽  
Vol 90 (1) ◽  
pp. 187-196 ◽  
Author(s):  
J. P. Bruner ◽  
R. D. Jones ◽  
Samuel Levy ◽  
J. M. Wandrisco
Keyword(s):  
Operating Conditions ◽  
Railroad Wheel ◽  
Iron And Steel ◽  
Design For All ◽  
Optimizing Design ◽  
Design Variation ◽  
Service Conditions ◽  
Winter Annual ◽  
Railroad Wheels ◽  
Abnormal Operating Conditions

The satisfactory performance of a railroad wheel depends on its ability to withstand not only the repeated stresses imposed on it by normal loads and braking conditions, but also the occasional high stresses that develop under abnormal operating conditions. The continuing trend of present railroad operating practices toward higher wheel loads and speeds has created the need for better design criteria to insure that wheel configurations are the best attainable. Under sponsorship of the American Iron and Steel Institute, the General Electric Company developed computer programs to simulate service braking and loading conditions. These were reported at the 1965 ASME Winter Annual Meeting. Now the programs have been applied to different wheel designs and the braking and loading stresses computed. The results indicate that cyclic stresses of significant magnitude may occur under different operating conditions, so fatigue concepts are important in wheel design considerations. There was no one optimum wheel design for all possible service conditions, although several configurations showed promise. A method was proposed for optimizing design for specific service conditions to safeguard against fatigue damage. To fully utilize this technique for design optimization, accurate data relating to service conditions are needed.

Studies on metal matrix composite railroad wheels

1993 ◽  
Vol 47 (2) ◽  
pp. 259-263
Author(s):  
T.C. Ramesh ◽  
N. Ganesan
Keyword(s):  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Metal Matrix ◽  
Railroad Wheels

Innovative solution for ultrasonic fabrication test of railroad wheels

2014 ◽  
Author(s):  
Wolfgang Kappes ◽  
Werner Bahr ◽  
Wolfgang Schafer ◽  
Thomas Schwender ◽  
Andreas Knam ◽  
...  
Keyword(s):  
Innovative Solution ◽  
Railroad Wheels
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