Damping Measurement of Sound Insulating Layers on Thin Metal Sheets

Paper #:
  • 931268

Published:
  • 1993-05-01
Citation:
Hoffmann, M., Kutter-Schrader, H., and Lent-Phillips, H., "Damping Measurement of Sound Insulating Layers on Thin Metal Sheets," SAE Technical Paper 931268, 1993, https://doi.org/10.4271/931268.
Pages:
9
Abstract:
A new practical test method for quantification of frequency dependent vibration damping of car bodies by sound insulating layers was developed and tested.Flat sheet metal covered with a sound insulating layer is exposed to bending vibrations in a broad frequency range.When exited at constant velocity, the quotient of the global vibrational energy on the sheet and that of it's exitation point gives a figure for the influence of the insulation layer on the damping of the steel sheet.
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