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Including deformation in a model for engine block dynamics: measurement and prediction of vibration
Scania Tech Ctr, Bus Dev, Scania CV AB, SE-15138 Sodertalje, Sweden..
Scania Tech Ctr, Engine Dev, Scania CV AB, SE-15138 Sodertalje, Sweden..
KTH, School of Engineering Sciences (SCI), Solid Mechanics (Dept.).ORCID iD: 0000-0001-8068-2360
2019 (English)In: International Journal of Vehicle Design. Heavy Vehicle Design, ISSN 1744-232X, E-ISSN 1741-5152, Vol. 26, no 1, p. 55-68Article in journal (Refereed) Published
Abstract [en]

Internal combustion engines (ICE) are sources of vibration in many applications. Engine mounted components need to be designed with respect to fatigue, to withstand these vibrations. In order to compute an estimate of the fatigue life of a component, the vibration load needs to be known. A methodology that is based on a seven degree of freedom model to represent the engine block is proposed. By fitting measured accelerometer data to this model, acceleration levels in arbitrary positions and directions, related to the engine block, may be computed. Results presented for an engine vibration measurement show good agreement between measured and computed vibration levels. A measure to find erroneous accelerometer definitions is also proposed and exemplified through measurement results. The method also enables pointing out local dynamic phenomena at measurement points.

Place, publisher, year, edition, pages
INDERSCIENCE ENTERPRISES LTD , 2019. Vol. 26, no 1, p. 55-68
Keywords [en]
engine, engine block vibrations, engine block twist, rigid body vibrations, vibration measurement, vibration estimation
National Category
Applied Mechanics
Identifiers
URN: urn:nbn:se:kth:diva-241191DOI: 10.1504/IJHVS.2019.097107ISI: 000454252300003Scopus ID: 2-s2.0-85059785741OAI: oai:DiVA.org:kth-241191DiVA, id: diva2:1281075
Note

QC 20190121

Available from: 2019-01-21 Created: 2019-01-21 Last updated: 2019-01-21Bibliographically approved

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Olsson, Mårten

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Output format
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