Dj. Inman et al., An experimental evaluation of smart damping materials for reducing structural noise and vibrations, J VIB ACOUS, 123(4), 2001, pp. 533-535
Citations number
12
Categorie Soggetti
Mechanical Engineering
Journal title
JOURNAL OF VIBRATION AND ACOUSTICS-TRANSACTIONS OF THE ASME
An experimental evaluation of the benefits of smart damping materials in re
ducing structural noise and vibration is presented. The construction of a s
pecial test rig for measuring both vibrations and structure-borne noise is
discussed. Next, the application of smart damping materials, specifically p
iezoceramics with electrical shunts, in reducing the vibrations of a test p
late is discussed. It is shown that the smart damping materials are able to
effectively, reduce the vibration peaks at multiple frequencies, with mini
mal amount of added weight to the structure, as compared to passive viscoel
astic damping materials. Further, the test results show that the structure-
borne noise at the vibration peaks is substantially reduced with the smart
damping materials. The results indicate the viability of smart damping mate
rials for many industrial applications where reducing noise and vibrations
is desired, with minimal amounts of added weight.