DYNAMIC MODELLING AND SIMULATION OF A HEAVY VEHICLE TRAILING ARM AIR SUSPENSION

This paper concentrates on the trailing arm air suspensions available on the rear tandem drive axles of some heavy prime movers. On these vehicles, the application of air suspension is believed to have a series of advantages, including road friendly characteristics, better load sharing and self ride height adjustment. However, air suspensions have proven to be unstable under dynamic situations possessing inadequate support, harsh ride and chaotic response. In this paper, some individual components of the air suspension are modeled as well as the suspension vibration model and the pneumatic transmission line model. These models are then simulated using both SIMULINK and analytical techniques to find the causes for the adverse characteristics. From the simulation it is identified, the harsh ride is caused by insufficient flow in the transmission line whereas the chaotic response, at least to some extent, is found to be due to the haphazard design of the analogue feedback control system, especially the ride height control valve (HCV).

• Record URL:
  http://arrbknowledge.com
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/087659229X
• Supplemental Notes:
  • Full conference proceedings available on CD-ROM.
• Corporate Authors:

  ARRB

  Melbourne, Victoria  Australia 
• Authors:
  • Li, Bo
  • MCLEAN, A G
• Conference:
  • Proceedings of the 21st ARRB and 11th REAAA Conference. Transport. Our Highway to a Sustainable Future
  • Location: Cairns, Australia
  • Date: 2003-5-18 to 2003-5-23
• Publication Date: 2003

Language

• English

Media Info

• Features: Figures; References;
• Pagination: 16 p.
• Serial:
  • Publication of: ARRB Transport Research, Limited
  • Publisher: ARRB
  • ISSN: 0158-0728

Subject/Index Terms

• TRT Terms: Air suspension systems; Compliance; Dynamic tests; Heavy vehicles; Information systems; Mass; Operations; Simulation; Speeding; Vehicles; Weigh in motion scales
• Geographic Terms: Australia
• Subject Areas: Administration and Management; Highways; Vehicles and Equipment; I91: Vehicle Design and Safety;

Filing Info

• Accession Number: 00964306
• Record Type: Publication
• ISBN: 087659229X
• Files: TRIS, ATRI
• Created Date: Oct 3 2003 12:00AM