EFFECT OF NON-LINEAR CHARACTERISTIC ON HUNTING OF CAR--EFFECT OF SIDE PLAY BETWEEN AXLE AND BEARING METAL

The equation of motion for a two-axle car was introduced when there was side play between the axle and the bearing metal, and an observation on the value of side play was made. Non-linearity of the elasticity and the side play was treated by the describing function method, linearizing of the equation of motion, and then the characteristic equation of the two-axle car was derived and the sinusoidal hunting velocity was calculated. A one-fifth sized model of a two-axle car was used in order to verify the theoretical treatment of hunting of a two-axle car experimentally. The experimental results and the theoretical calculation coincided closely and qualitatively and moreover when the damping of the supporting device for the car body was selected properly, the above results also coincided quantitatively. It was proved that the side play not only prevented the body hunting effectively but also lessened the side thrust experimentally.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/3127232
• Corporate Authors:

  JAPANESE NATIONAL RAILWAYS

  TOKYO,   Japan 
• Authors:
  • Yokose, K
• Publication Date: 1972-6

Media Info

• Features: Figures;
• Pagination: p. 107-111
• Serial:
  • Railway Technical Research Institute, Quarterly Reports
  • Volume: 13
  • Issue Number: 2
  • Publisher: Railway Technical Research Institute/Tetsudo Gijutsu Kenkyujo
  • ISSN: 0033-9008
  • Serial URL: http://www.rtri.or.jp/eng/

Subject/Index Terms

• TRT Terms: Hunting (Dynamics); Lateral acceleration; Railroad rails; Rolling contact; Train track dynamics; Trucks; Wheels
• Subject Areas: Motor Carriers; Railroads; Vehicles and Equipment;

Filing Info

• Accession Number: 00041123
• Record Type: Publication
• Source Agency: Railway Technical Research Institute
• Files: TRIS
• Created Date: Mar 23 1976 12:00AM