MODIFIED THREE-PIECE TRUCK REDUCES HUNTING AND IMPROVES CURVING

Analysis of dynamic truck oscillations shows that hunting can be controlled by elastic links which connect the diagonally opposed journal boxes of the two wheelsets of a truck. Yaw constraint of the wheelsets in relation to the truck frame can then be minimized and full advantage taken of the ability of conical wheelsets to align themselves radially on curved track. This stability ensures that tread profile conicity does not change as wheels wear and stability can be maintained for long periods. South African Railways has incorporated such a diagonal suspension truck with encouraging test results. Although sharp curves are prevalent on the track where tests were conducted, flange wear has been negligible.

Media Info

  • Features: Figures; References;
  • Pagination: p. 41-46

Subject/Index Terms

Filing Info

  • Accession Number: 00097308
  • Record Type: Publication
  • Source Agency: Federal Railroad Administration
  • Files: TRIS, USDOT
  • Created Date: Aug 13 1976 12:00AM