Technical Reports

Analyses of Rail Vehicle Dynamics in Support of Development of the Wheel Rail Dynamics Research Facility

  • 01
  • Jun
  • 1973
AUTHOR: Herbert Weinstock
REPORT NUMBER: MA-06-0025-73
SUBJECT: Evaluation
KEYWORDS: Rail Vehicle Dynamics
ABSTRACT: The development of experimental facilities for rail vehicle testing at the DOT High Speed Ground Test Center is being complemented by analytical studies conducted by Transportation System Center under the UM204 Rail Supporting Technology Program to the Urban Mass Transportation Administrations Office of Research, Development, and Demonstrations. The purpose of this effort has been to gain insight into the dynamics of rail vehicles to guide the equipment development and to establish an analytic framework for the design and interpretation of tests to be conducted at the facility. The mechanics of rail vehicle lateral guidance are reviewed on the basis of linearized models. Computer programs are developed for predicting stability and general lateral response characteristics. Computer programs for predicting vertical and pitch vehicle response to track irregularities are included. Implications of non-linear effects are discussed. The report describes the status of work currently in progress and subject to revision. Publication is intended primarily to stimulate the exchange of information.