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International Journal of Automotive Technology 2005;6(6): 607-613. |
| APPLICATION OF VISCOELASTIC DAMPING FOR PASSIVE VIBRATION CONTROL IN AUTOMOTIVE ROOF USING EQUIVALENT PROPERTIES |
| K. H. LEE1, C. M. KIM2 |
1Hyundai Motors
2Kookmin University |
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| ABSTRACT |
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In this study, a simplified approach to modeling the dynamic characteristics of passive constrained layer damping treatments in finite element models is presented. The basic concept is to represent multi-layered composite structures using an equivalent single layer. The equivalent properties are obtained by using the RKU (Ross, Kerwin and Ungar) equations. Comparisons are given between results obtained by the dynamic analysis of the simple models implemented in MSC/NASTRAN and by test measurements. Surface damping treatments are applied to automotive panels as well as simple structures. Using the proposed equivalent modeling technique, higher computational efficiency{{br}}for the damped composite structures has been obtained. |
| Key Words:
Damping, Viscoelastic material, Equivalent properties, Finite element analysis |
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