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Multiphysics analysis for the determination of valvetrain characteristics

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journal contribution
posted on 2009-06-11, 14:08 authored by M. Teodorescu, Vasilis Votsios, Homer Rahnejat
The ideal function of a valvetrain system is to synchronize the opening and closing of the inlet and exhaust valves with the required thermodynamics of the combustion process. As such, ideally a kinematic-type mechanism is desired. However, the timing requirements in the action of each valve and between any inlet-exhaust pair necessitate the use of contacting pairs of suitable profiles. The very existence of contact renders the problem one of complex non-linear dynamics, which is further exacerbated by the translational imbalance of the reciprocating compliant elements such as the valve itself. The interplay between these various forms of dynamics, inertial, structural, and impact/contact, make the problem quite complex to analyse. As a result, some of the most important problems with valvetrains are only surmised at, rather than fundamentally understood. The multiphysics modelling approach proposed in this paper renders a better understanding, as well as conforming to experimental observations.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Citation

TEODORESCU, M., VOTSIOS, V. and RAHNEJAT, H., 2005. Multiphysics analysis for the determination of valvetrain characteristics. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 219 (9), pp. 1109-1117

Publisher

Professional Engineering Publishing / © IMECHE

Version

  • VoR (Version of Record)

Publication date

2005

Notes

This article was published in the Journal, Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering [© IMECHE]. The definitive version is available at: http://www.pepublishing.com/

ISSN

0954-4070

Language

  • en

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