INFLUENCE OF DYNAMICS OF A TRACTION DRIVE MECHANISM OF A LOCOMOTIVE ON UNDULATING WEAR OF RAILS

VLIYANIYE DINAMIKI TYAGOVOGO PRIVODA LOKOMOTIVA NA VOLNOOBRAZNYI IZNOS REL'SOV

The authors studied the effect of drive dynamics on the undulatory wear of rails as one of the important factors contributing to a great extent to this type of rail damage. Three conclusions were arrived at on the basis of the study results: (1) intensity of undulatory rail wear depends principally on the size of the non-spring-mounted mass of the wheel pair and on the amplitude of the dynamic torque produced by vibration of the wheel pair; (2) the use of an elastic gear wheel in the traction transmission of a support-axle drive allows an almost threefold reduction in the wave formations; and (3) the most effective means of reducing wave formation is the use of a support frame traction drive of modern design which assures the least non-spring-mounted weight of a wheel pair and uniform transmission of moment from the armature of the electric motor. Mathematical expressions are given. An oscillogram of the vertical accelerations associated with the axle box and dynamic torque in the armature shaft shank during motion of a diesel locomotive along a section of track affected by wear is shown.

• Corporate Authors:

  Moscow Institute of Railroad Transport Engineers

  Moscow,   USSR 
• Authors:
  • IVANOV, V N
• Publication Date: 1973

Language

• Russian

Media Info

• Features: Figures; References;
• Pagination: p. 3-11
• Serial:
  • Trudy MIIZT
  • Issue Number: 1
  • Publisher: Moscow Institute of Railroad Transport Engineers

Subject/Index Terms

• TRT Terms: Axles; Corrugations (Defects); Dynamics; Mathematical models; Measurement; Railroad rails; Torque; Train track dynamics; Unsprung weight; Wear; Wheels
• Uncontrolled Terms: Rail corrugation; Vertical dynamics
• Old TRIS Terms: Axle drives; Mathematical studies; Unsprung mass
• Subject Areas: Railroads; Vehicles and Equipment;

Filing Info

• Accession Number: 00172926
• Record Type: Publication
• Files: TRIS
• Created Date: May 18 1978 12:00AM