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Model Reduction of the Flexible Rotating Crankshaft of a Motorcycle Engine Cranktrain
Joint Authors
Troncossi, Marco
Rivola, Alessandro
Ricci, Stefano
Source
International Journal of Rotating Machinery
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-05-24
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
This paper addresses the development of an elastodynamic model of a motorcycle engine cranktrain aimed at accurately evaluating the interactions between the crankshaft and the engine block, thus allowing an improved structural design.
A rigid multibody model is first implemented and simulated; only kinematic joints are involved at this stage, leading to a statically determinate assembly of the mechanism.
Such a modelling approach prevents the loads at certain interface locations to be evaluated; furthermore, high-frequency dynamic effects cannot be predicted.
These drawbacks can be removed by introducing bushing-like elements and/or modelling component flexibility.
In this paper, this latter aspect is the objective of the investigation; in particular, a finite element model of the crankshaft is implemented as a replacement for the corresponding rigid member.
The well-established Craig-Bampton model reduction technique is used to represent the elastodynamic behaviour of the component with a limited number of coordinates.
The mode selection procedure is emphasized here: a measure of modal dynamic importance, namely the effective interface mass fraction, is used to rank fixed-interface normal modes based upon their contribution to loads at the substructure interface; choosing the modal base according to such ranking leads to a minimal yet accurate representation.
American Psychological Association (APA)
Ricci, Stefano& Troncossi, Marco& Rivola, Alessandro. 2011. Model Reduction of the Flexible Rotating Crankshaft of a Motorcycle Engine Cranktrain. International Journal of Rotating Machinery،Vol. 2011, no. 2011, pp.1-9.
https://search.emarefa.net/detail/BIM-449212
Modern Language Association (MLA)
Ricci, Stefano…[et al.]. Model Reduction of the Flexible Rotating Crankshaft of a Motorcycle Engine Cranktrain. International Journal of Rotating Machinery No. 2011 (2011), pp.1-9.
https://search.emarefa.net/detail/BIM-449212
American Medical Association (AMA)
Ricci, Stefano& Troncossi, Marco& Rivola, Alessandro. Model Reduction of the Flexible Rotating Crankshaft of a Motorcycle Engine Cranktrain. International Journal of Rotating Machinery. 2011. Vol. 2011, no. 2011, pp.1-9.
https://search.emarefa.net/detail/BIM-449212
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-449212