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Title: Effect of a dual-mass flywheel on the impact-induced noise in vehicular powertrain systems
Authors: Theodossiades, Stephanos
Gnanakumarr, M.
Rahnejat, Homer
Kelly, P.
Keywords: Powertrains
Driveline clonk
Transmission rattle
Dual-mass flywheel
Solid-mass flywheel
Issue Date: 2006
Publisher: Professional Engineering Publishing / © IMECHE
Citation: THEODOSSIADES, S. ... et al., 2006. Effect of a dual-mass flywheel on the impact-induced noise in vehicular powertrain systems. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 220 (6), pp. 747-761
Abstract: The appearance and persistence of impact-induced clonk noise in rear wheel drive light truck drivelines has led to an urgent need for remedial action. The pressure for delivering results within tight schedules and financial constraints has resulted in palliative actions rather than fundamental investigations. It has been speculated that the use of a dual-mass flywheel (DMF) can lead to attenuation of clonk metallic noise, even though its main purpose has been to counter transmission rattle by reducing the input torsional impulse. The present work investigates the effect of DMF on impact-induced clonk noise and its severity through experimentation. Sound measurements in the driveline only reveal a slight reduction in the overall levels of impact-induced noise, but a significant change in its quality - the sharpness associated with the typical metallic content of clonk is absent. The effect is also highlighted by the main frequency content of the response when DMF is employed. The duration of the clonk phenomenon is altered from the case where a traditional single solid-mass flywheel is employed.
Description: 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/
Version: Published
DOI: 10.1243/09544070JAUTO55
URI: https://dspace.lboro.ac.uk/2134/4745
ISSN: 0954-4070
Appears in Collections:Published Articles (Mechanical and Manufacturing Engineering)

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