Technical Reports

Safety of Passenger Vehicle Dynamics: Simulation and Test Correlations for a Passenger Car with Non-Equalized Trucks

  • 01
  • Jan
  • 1999
AUTHOR: G. Samavedam, J. Gomes, D. Wormley
SUBJECT: Passenger Rail
KEYWORDS: Computer Simulation, OMNISIM, Rail Safety
ABSTRACT: This report presents a summary of the field test results and correlations with computer simulation for a rail passenger car which has non-equalized trucks. The tests and OMNISIM simulation correlations included vehicle response to variations in vertical alignment, steady curving with spirals, dynamic curving, yaw and sway, twist and roll, pitch and bounce, and hunting with initial alignment defects. For each dynamic test, a description, correlation and conclusions are provided. The purpose of the work is to validate the methodology previously developed for vehicle dynamic safety evaluations, which requires the application of simulation tools as well as testing of vehicles under different track scenarios. This report specifically addresses the evaluation of the tasks in the methodology related to measurement of vehicle and track parameters, test conduct, and correlation of the test results with computer simulation results.