Paper Title:
High Frequency Vibration Analysis of Automotive Body Panels with Damping Materials
  Abstract

We have developed a technique for estimating vibrations of an automotive body structures with viscoelastic damping materials using large-scale finite element (FE) model, which will enable us to grasp and to reduce high-frequency road noise(200~500Hz). In the new technique, first order solutions for modal loss factors are derived applying asymptotic method. This method saves calculation time to estimate modal damping as a practical tool in the design stages of the body structures. Frequency responses were calculated using this technique and the results almost agreed with the test results. This technique can show the effect of the viscoelastic damping materials on the automotive body panels, and it enables the more efficient layout of the viscoelastic damping materials. Further, we clarified damping properties of the automotive body structures under coupled vibration between frames and panels with the viscoelastic damping materials.

  Info
Periodical
Edited by
Yusaku Fuji and Koichi Maru
Pages
293-296
DOI
10.4028/www.scientific.net/AMM.36.293
Citation
Y. Kurosawa, T. Yamaguchi, "High Frequency Vibration Analysis of Automotive Body Panels with Damping Materials", Applied Mechanics and Materials, Vol. 36, pp. 293-296, 2010
Online since
October 2010
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$32.00
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