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A METHOD TO ASSESS TRANSVERSE VIBRATION ENERGY OF SHIP PROPELLER SHAFT FOR DIAGNOSTIC PURPOSES

Abstract

The article discusses a key problem of ship propulsion system vibration diagnostics, which concerns assessing this part of mechanical energy transmitted from the main engine to the ship propeller which is dissipated due to propeller shaft vibration. A simplified calculation model is proposed which allows the total energy of the generated torsional vibration to be assessed from the shaft deflection amplitude measured at the mind-span point between the supports. To verify the developed model, pilot tests were performed on the laboratory rotational mechanical system test rig. In those tests, cyclic bending moment was applied to a unified (cylindrical) material sample, which modelled, at an appropriate scale, structural and functional properties of a real propeller shaft.

Keywords:

rotational mechanical system, propeller shaft transverse vibration energy, calculation model

Details

Issue
Vol. 24 No. 4(96) (2017)
Section
Latest Articles
Published
13-01-2018
DOI:
https://doi.org/10.1515/pomr-2017-0141
Licencja:
Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Open Access License

This journal provides immediate open access to its content under the Creative Commons BY 4.0 license. Authors who publish with this journal retain all copyrights and agree to the terms of the CC BY 4.0 license.

 

Authors

Zbigniew Korczewski

Gdańsk University of Technology, Faculty of Ocean Engineering and Ship Technology

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