A THREE-DIMENSIONAL AIRSPRING MODEL WITH FRICTION AND ORIFICE DAMPING

This paper proposes a non-linear airspring model for general three-dimensional motions. The non-linearity stems from friction behaviour of rubber parts and from the air flow in the pipe between airbag and surge reservoir, in particular if the surge pipe is equipped with orifice damping. The model is based on superposition of elastic, friction and viscous forces. For a given preload, the model has 6 and 7 parameters for horizontal and vertical motions, respectively. Comparisons between model and measurement results show good agreement for a wide range of cases. The model represents a reasonable compromise between accuracy and computational effort and should be a suitable tool in rail vehicle dynamics analysis. For the covering abstract see ITRD E117109.

• Corporate Authors:

  SWETS & ZEITLINGER B.V.

  LISSE,   Netherlands 
• Authors:
  • Berg, M
• Conference:
  • THE DYNAMICS OF VEHICLES ON ROADS AND ON TRACKS - SUPPLEMENT TO VEHICLE SYSTEM DYNAMICS, VOLUME 33. PROCEEDINGS OF THE 16TH IAVSD SYMPOSIUM HELD IN PRETORIA, SOUTH AFRICA, AUGUST 30 - SEPTEMBER 3, 1999
• Publication Date: 2000

Language

• English

Media Info

• Features: References;
• Pagination: p. 528-39

Subject/Index Terms

• TRT Terms: Conferences; Damping (Physics); Friction; Mathematical models; Nonlinear systems; Railroad trains; Simulation; Suspension systems
• ITRD Terms: 8525: Conference; 5559: Damping; 5452: Friction; 6473: Mathematical model; 6482: Non linear system; 9103: Simulation; 1329: Suspension (veh); 1268: Train
• Subject Areas: Railroads; Vehicles and Equipment;

Filing Info

• Accession Number: 00943109
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Jun 11 2003 12:00AM