INVESTIGATION OF MOTORCYCLES WITH A PASSIVE STEERED REAR WHEEL

The critical weave mode oscillations of motorbikes, which occur in the high velocity domain, can be damped by a steerable rear wheel when this is turned around a suitable steering axis. Via the case of the one-wheel-drag model, it is shown how this rear wheel steering axle has to be designed, in order to generate a steer angle by tire side force. This steer angle in turn increases the side force and therefore the weave mode damping ratio. Within the limits of usual dimensions of a motorbike, the construction of such a steering axle is only possible by using an adequate quadrilateral joint. The rear wheel steering mechanism was investigated with the help of a simulation model, based on the multi-body-formalism. A simulation of the driving behaviour showed the influence of the rear wheel steering angle upon the driving behaviour of a test motorbike. Final driving tests with a test motorbike equipped with the rear wheel steering system confirmed the usefulness of the chosen approach although there is a shortcoming in the design. The tests were carried out on a roller-test-stand and on a testing field. (A) For the covering abstract see IRRD 880121.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/7800033112
• Corporate Authors:

  INTERNATIONAL ACADEMIC PUBLISHERS

  137 CHAOKEI DAJIE
  BEIJING,   China 
• Authors:
  • TEUBERT, C
  • WILLUMEIT, H-P
• Conference:
  • SAFETY. TECHNICAL PAPERS FROM THE 25TH FISITA CONGRESS, BEIJING, 1994, VOL 4. TECHNICAL PAPER NO. 945153
• Publication Date: 1994

Language

• English

Media Info

• Features: References;
• Pagination: p. 23-9

Subject/Index Terms

• TRT Terms: Conferences; Mechanical stability; Motorcycles; Speed; Steering; Vehicle rear end; Wheels
• Uncontrolled Terms: Rear
• ITRD Terms: 8525: Conference; 1221: Motorcycle; 9067: Rear; 5408: Speed; 5930: Stability; 1834: Steering (process); 1372: Wheel
• Subject Areas: Data and Information Technology; Vehicles and Equipment;

Filing Info

• Accession Number: 00724148
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 7-80003-311-2
• Files: ITRD
• Created Date: Aug 19 1996 12:00AM