LATERAL FORCES ON RAILS

A piezoelectric device was mounted between the axlebox and bearing brass of 4-6-2 and 4-4-2 type locomotives to measure the lateral forces between the wheel and rail. Trials were made on the Hericy section of the Paris-Laroche line, which has curves of radii down to 1,640 lb., speeds of 75, 81, and 87 mph. The lateral forces for both locomotives on straight track and curves are reported in tabular form. Tests were made, with apparatus consisting of an indicating potentiometer for measuring changes in length of a telescopic tube placed between the wheels, to measure deformation, of the crank axle by loads on a locomotive without balance weights. Using the 4-4-2 locomotive, the distance between wheels increased from 3/8 to 11/16 in. as the speed rose from 50 to 75 mph.

• Corporate Authors:

  Temple Press Limited

  161-166 Fleet Street
  Longon EC4,   England 
• Publication Date: 1939-12-1

Media Info

• Features: Figures; Tables;
• Pagination: p. 702-03
• Serial:
  • RAILWAY GAZETTE
  • Volume: 71

Subject/Index Terms

• TRT Terms: Centrifugal force; Curved track; Deformation; Dynamics; Equipment tests; Journal boxes; Locomotives; Railroad rails; Railroad tracks; Stresses; Tangent track; Technology; Train track dynamics; Wheels
• Uncontrolled Terms: Lateral dynamics; Lateral loads
• Geographic Terms: France
• Old TRIS Terms: Rail stress; Test equipment; Wheel balance
• Subject Areas: Railroads; Vehicles and Equipment;

Filing Info

• Accession Number: 00037884
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 8 1994 12:00AM