TRANSACTIONS OF THE KRYLOV STATE RESEARCH CENTRE

Science journal

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


Articles of The Transactions of KSRC








Crash-stop calculation method for a ship with several different propulsors.



Full text article ( in russian)

Year

 
2015

Issue

 
374

Volume

 
4

Pages

 
27-38

Caption

 
Crash-stop calculation method for a ship with several different propulsors.

Authors

 
A. Yakovlev, Yu. Vasilyev.

Keywords

 
crash-stop, calculation, propeller, pod propulsor, CPP

Summary

 
The paper develops a crash-stop calculation method for the ship having several different propulsors and analyses the specifics of their operation in case of this maneuver. Crash-stop calculation is based on a system of differential equations including the movement equation for the ship and operation equation for each of her propulsors. The calculation assumes that lateral offset of ship during crash-stop is negligible. The propulsors could be FPPs, CPPs and pod propulsors: each of these propulsor types has its own specifics of operation in non-design conditions. The newly developed calculation method has undergone the validation (including the comparison versus full-scale data) and proved itself valid. This method was applied to perform crash-stop calculations for a multi-shaft vessel, and these calculation have shown that joint operation of several different propulsors results in significant redistribution of loads acting on them.

Rubrics

 
Naval architecture

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