This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Determination of Dynamic Properties and Modeling of Extensional Damping Materials
Technical Paper
2003-01-1433
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Extensional damping materials are commonly used in the automotive industry to control structure-borne noise. Using the dynamic properties of the material or composite panel, these materials can be represented in vehicle finite element or statistical energy analysis (SEA) models. However, in order to make the detailed design changes to the damping material treatment, proper characterization of the material properties is required. This paper discusses the method of measuring and validating the complex modulus of an extensional damping material using the Oberst beam technique [1]. Also, it is shown that the Ross, Kerwin, Ungar (RKU) analytical model can be utilized to predict damping of composite panels for SEA models [2]. SEA modeling of various composite panel constructions will be examined with supporting measurements.
Recommended Content
Authors
Citation
Tudor, J., "Determination of Dynamic Properties and Modeling of Extensional Damping Materials," SAE Technical Paper 2003-01-1433, 2003, https://doi.org/10.4271/2003-01-1433.Also In
References
- Oberst H. Frankenfeld K. “Uber die Dampfund der Biegeschwingungen dunner Bleche durch festhaftende Delage” Acoustica 2 1952
- Ross D. Kerwin E. M. Jr. Ungar E.E. “Damping of Flexural Vibrations by Means of Viscoelastic Laminae” Structural Damping ASME 49 87 1959
- ASTM “Standard Test Method for Measuring Vibration-Damping Properties of Materials” American Society for Testing and Materials 1993
- Akanda A. Goetchius G. M. “Representation of Constrained / Unconstrained Layer Damping Treatments in FEA/SEA Vehicle System Models: A Simplified Approach” SAE Noise and Vibration Conference Proceedings 223 234 1999
- Beranek, L.L. Ungar, E.E. “Noise and Vibration Control Engineering Wiley Interscience 473 1992
- Hiemenz, P.C. “Polymer Chemistry” Marcel Dekkar 256 261 1984