Abstract
A methodology for the measurement of the valve kinematics in a high performance IC engine in firing condition is described in this paper. The method is based on the use of an In-plane Laser Doppler Vibrometer pointing on the valve stem through a transparent window on the engine inlet duct. The main advantages and drawbacks of the technique are discussed through the paper as well as guidelines for proper test settings. Results obtained are illustrated, they highlighting the potentials of the proposed technique to monitor valvetrain motion in operating conditions.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Kerres R, Schwarz D, Bach M, Fuoss K et al (2012) Overview of measurement technology for valve lift and rotation on motored and fired engines. SAE Int J Engines 5(2):197–206. doi:10.4271/2012-01-0159
Norton RL (2002) Cam design and manufacturing handbook. Industrial Press, New York
Paone N, Santolini C, Tomasini EP (1994) Application of a laser Doppler vibrometer to evaluate engine poppet valve kinematics, XII IMAC, Hawaii, Proceedings of the IMAC XII conference, Honolulu, USA
Carlini A, Rivola A, Dalpiaz G, Maggiore A (2002) Valve motion measurements on motorbike cylinder heads using high-speed laser vibrometer. In: Proceedings of SPIE. Fifth international conference on vibration measurements by laser techniques: advances and applications. Ancona, Italy, vol 4827, pp 564–574
Polytec Gmbh, Application Note VIB-C-03. Waldbronn, Germany
Kerres R. Measuring with lasers: optimizing valvetrain dynamics at Porsche Engineering, InFocus 2/2011, Polytec Gmbh. Waldbronn, Germany
Hosek P. Algorithm for signal drop-out recognition in IC engine valve kinematics signal measured by laser Doppler vibrometer, J Optics Laser Technol. doi:10.1016/j.optlastec.2011.09.034
Paone N, Santolini C, Tomasini EP (1994) Simultaneous measurement of inlet flow and valve motion in internal combustion engines by laser Doppler techniques. In: 7th international symposium an applications of laser techniques to fluid mechanics, Lisbon
Gasparetti M, Paone N, Tomasini EP (1996) Laser Doppler techniques for the combined measurement of inlet flow and valve motion in IC engines. Meas Sci Technol 7:576–591
Polytec Gmbh, OFV-3300/LSV-060 user’s guide. Waldbronn, Germany
Revel GM, Castellini P, Chiariotti P, Tomasini EP, Cenedese F, Perazzolo A (2011) Laser vibrometry vibration measurements on vehicle cabins in running conditions: helicopter mock-up application. Optical Eng 50:101502
Acknowledgments
The authors want to acknowledge Dr. Andrea Sassaroli from Ducati Motor Holding for the interesting technical discussions about Testastretta engine and Desmodromic distribution.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2013 The Society for Experimental Mechanics, Inc.
About this paper
Cite this paper
Castellini, P., Chiariotti, P., Martarelli, M., Tomasini, E.P. (2013). Valvetrain Motion Measurements in Firing Conditions by Laser Doppler Vibrometer. In: Allemang, R., De Clerck, J., Niezrecki, C., Wicks, A. (eds) Special Topics in Structural Dynamics, Volume 6. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-6546-1_43
Download citation
DOI: https://doi.org/10.1007/978-1-4614-6546-1_43
Published:
Publisher Name: Springer, New York, NY
Print ISBN: 978-1-4614-6545-4
Online ISBN: 978-1-4614-6546-1
eBook Packages: EngineeringEngineering (R0)