MEASUREMENT OF THE COMPLEX COMPLIANCE
OF COATINGS OF ELASTIC MATERIALS
V. M. Kulik, S. L. Morozova, and
S. V. Rodyakin

UDC 532.526.4:539.3

A procedure for measuring the compliance of viscoelastic 
coatings that are used to reduce the hydrodynamic friction has been 
developed (the frequency range of measurements is from 400 Hz to 2 kHz). 
The set of force transducers differing by the diameter of the 
surface of contact with a coating has been manufactured. The frequency 
and amplitude characteristics of the transducers have been given. 
It has been shown that the dynamic compliance is independent of the 
static deformation  if  >> 3%. The diameter of the 
coating sample for which the edge effects are of little importance 
has been selected. It has been shown that with a twofold increase 
in the coating thickness the measured resonant frequency of the coating 
decreases twofold as well.

Institute of Thermal Physics, Siberian Branch of the Russian Academy of 
Sciences, Novosibirsk, Russia. 
Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 75, No. 2, pp. 108-111, 
March-April, 2002. Original article submitted August 16, 2001.

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