PROPAGATION OF DEFORMATION WAVES IN A COMPLIANT COATING

V. M. Kulik

UDC 532.526.4

A unit for measurement of the amplitude and length of 
a deformation wave propagating along a layer of a viscoelastic material 
glued to a rigid base has been developed and manufactured. It has 
been shown that at the first-resonance frequency of the coating, the 
wavelength is equal to a quadruple coating thickness. The variance 
of the phase velocity of propagation of vibrations has been found. 
The damping of the vibrations has turned out to be much higher than 
that in free space. The conditions under which the response of the 
coating to turbulent pressure pulsations is maximum have been given.

S. S. Kutateladze Institute of Thermal Physics, Siberian 
Branch of the Russian Academy of Sciences, 1 Akad. Lavrent'ev Ave., 
Novosibirsk, 630090, Russia; email: Kulik@itp.nsc.ru. Translated from 
Inzhenerno-Fizicheskii Zhurnal, Vol. 77, No. 4, pp. 71-75, July-August, 
2004. Original article submitted September 29, 2003.