TRANSACTIONS OF THE KRYLOV STATE RESEARCH CENTRE

Science journal

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


Articles of The Transactions of KSRC








Estimation the ratio between resonant and non-resonant sound radiation of shell



Full text article ( in russian)

Year

 
2017

Issue

 
382

Volume

 
4

Pages

 
155-158

Caption

 
Estimation the ratio between resonant and non-resonant sound radiation of shell

Authors

 
Kirpichnikov V., Savenko V.

Keywords

 
circular cylindrical shell, area between transverse barriers, point force, resonant and non-resonant noise radiation.

DOI

 
10.24937/2542-2324-2017-4-382-155-158

Summary

 
Object and purpose of research.Assessment of ratio between resonant and non-resonant sound radiation from an area on circular cylindrical shell between transverse barriers, excited by radial point force.
Subject matter and methodsRatio between resonant and non-resonant sound radiation levels at the lower resonant frequency of natural vibration for the shell with varying radius and length. The levels of the sound radiation components obtained using the formulas yielding correct results for adopted physical models.
Main results.The study yielded the relationships for the ratio between resonant and non-resonant sound emission of the variable-radius shell with respect to its length.
Conclusion.It was found that radius and length of shell can be selected so as to mitigate point force-induced noise radiation.

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

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