TRANSACTIONS OF THE KRYLOV STATE RESEARCH CENTRE

Science journal

 
ISSN (print) 2542-2324 /(online) 2618-8244


Articles of The Transactions of KSRC








Acoustic lifetime of anti-vibration coating and its effect upon noise in ship spaces



Full text article ( in russian)

Year

 
2019

Issue

 
20192

Volume

 
2

Pages

 
104–109

Caption

 
Acoustic lifetime of anti-vibration coating and its effect upon noise in ship spaces

Authors

 
Korobitsyna D.M., Kuznetsova A.D.

Keywords

 
mechanical loss factor, anti-vibration putty, tiles, acoustic lifetime

DOI

 
10.24937/2542-2324-2019-2-S-I-104–109

Summary

 
This paper estimates lifetime of stiff anti-vibration coatings widely used aboard ships. This assessment is very important because it makes it possible to predict how the efficiency of indoor acoustic coating will deteriorate with time. Mechanical loss factors of coating tile samples were measured with the interval of five years. Measurement data were used to validate the statistical hypothesis about the equality of mathematical expectations so as to make it possible to confirm or refute statistical coincidence of mechanical loss factors. The model of ship developed as per statistical-energy method was used to estimate indoor noise damping efficiency of stiff coatings.

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ISSN (print) 2542-2324 / ISSN (online) 2618-8244

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