International Journal of Automotive Technology

The Korean Society of Automotive Engineers (한국자동차공학회)
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APPLICATION OF VISCOELASTIC DAMPING FOR PASSIVE VIBRATION CONTROL IN AUTOMOTIVE ROOF USING EQUIVALENT PROPERTIES

  • LEE K. H. (Hyundai Motor Co.) ;
  • KIM C. M. (Graduate School of Automotive Engineering, Kookmin University)
  • Published : 2005.12.01
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Abstract

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 for the damped composite structures has been obtained.

Keywords

References

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