Valve motion measurements on motorbike cylinder heads using high-speed laser vibrometer

Andrea Carlini; Allessandro Rivola; Giorgio Dalpiaz; Alberto Maggiore

doi:10.1117/12.468175

22 May 2002 Valve motion measurements on motorbike cylinder heads using high-speed laser vibrometer

Andrea Carlini, Allessandro Rivola, Giorgio Dalpiaz, Alberto Maggiore

Proceedings Volume 4827, Fifth International Conference on Vibration Measurements by Laser Techniques: Advances and Applications; (2002) https://doi.org/10.1117/12.468175
Event: Fifth International Conference on Vibration Measurements by Laser Techniques, 2002, Ancona, Italy

Abstract

This work deals with valve motion measurements on cylinder heads of Ducati racing motorbikes, by means of high speed laser Doppler vibrometer. The experimental apparatus is described and some measurement results are presented. The results confirm that the effects of the dynamic phenomena are very important, especially at high speeds, and that the dynamic response gets worse with the increment of backlashes in the cam kinematic pairs. In addition, the measurements make it possible to analyse the valve bumping phenomena. The information retrieved from measurements provides insight into the cam system dynamics and helps the development of elastodynamic predictive models.

Citation Download Citation

Andrea Carlini, Allessandro Rivola, Giorgio Dalpiaz, and Alberto Maggiore "Valve motion measurements on motorbike cylinder heads using high-speed laser vibrometer", Proc. SPIE 4827, Fifth International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, (22 May 2002); https://doi.org/10.1117/12.468175

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