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Shock and Vibration
Volume 11 (2004), Issue 3-4, Pages 433-443

Experimental Analysis of Out-of-Plane Structural Vibrations of Two-Wheeled Vehicles

V. Cossalter, A. Doria, R. Basso, and D. Fabris

Department of Mechanical Engineering, University of Padova, Via Venezia 1, 35131 Padova, Italy

Received 24 August 2004; Revised 24 August 2004

Copyright © 2004 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


An analysis of the handling and stability of two-wheeled vehicles depends on structural flexibility. This paper deals with laboratory experimentation carried out to identify the vehicle's structural modes of vibration. The tests were carried out in stationary conditions considering several combinations of constraints.

Although the testing conditions did not correspond completely to actual road conditions, information about the influence of structural modes on weave and wobble modes was obtained. An analysis of the Frequency Response Functions obtained from several kinds of tests made it possible to establish the best testing conditions to obtain the desired information.

Experimental results regarding a super-sport motorcycle and a maxi-scooter are presented and discussed in this paper.