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Effects of Seal Viscoelastic Properties on Engine Exterior Cover Noise and Vibration
Technical Paper
2007-01-2285
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Engine exterior cover seals are typically made of elastomeric materials and used to seal the interfaces. The design of engine/transmission seals has been traditionally considered from the sealibility aspects. Recently, there have been additional demands that these seals be designed to reduce the vibration transmitted from engine/transmission and to attenuate the radiated noise. To accomplish this goal, the frequency-dependent viscoelastic properties of the seals will have to be considered. This article examines the frequency-dependent viscoelastic properties of some common elastomeric seals. The impacts of these materials on an engine valve cover noise and vibration are particularly investigated. Some design strategies are also discussed to optimize the viscoelastic effects of the elastomeric seals.
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Citation
Lu, Y., "Effects of Seal Viscoelastic Properties on Engine Exterior Cover Noise and Vibration," SAE Technical Paper 2007-01-2285, 2007, https://doi.org/10.4271/2007-01-2285.Also In
References
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- Snowdon, J.C. Vibration Isolation: Use and Characterization Journal of Acoustical Society of America 66 1245 1274 1979