TRANSACTIONS OF THE KRYLOV STATE RESEARCH CENTRE

Science journal

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


Articles of The Transactions of KSRC








Crash-stop of complex-geometry propellers: stressed-state specifics



Full text article ( in russian)

Year

 
2019

Issue

 
389

Volume

 
3

Pages

 
57-62

Caption

 
Crash-stop of complex-geometry propellers: stressed-state specifics

Authors

 
Vishnevsky L., Luk D.

Keywords

 
complex-geometry propeller, strength, crash-stop.

DOI

 
10.24937/2542-2324-2019-3-389-57-62

Summary

 
Object and purpose of research. This work analyses stressed state of propeller with complex geometry depending on its operational conditions, including crash-stop scenario.
Subject matter and methods.The study is based on laboratory and full-scale test data.
Main results. It has been shown that blade strains of complex-geometry propellers under hydrodynamic loads must be sufficient to alter their hydrodynamic performance. It is pointed out that stresses in these propellers could be especially hazardous in terms of reliability in crash-stop conditions
Conclusion. This paper shows that low-speed propellers cannot be taken as design prototypes for high-speed propellers with complex geometry, otherwise there might be reliability implications

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

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