engleski

Shaftline Design Considerations of Five-Cylinder Low-Speed Propulsion Plants

Torsional vibration behavior of the recent five-cylinder two-stroke low-speed marine diesel engine propulsion plants is more complex than ever. Therefore, this paper stresses the importance of a proper torsional vibration analysis of a shafting system in an early stage of the project development cycle. Three basic design approaches, that is the flexible shafting system, the rigid shafting system and the shafting system with a torsional vibration damper are reviewed and discussed. One of them, the flexible shafting system approach is emphasized and described in more detail. Besides, some practical design and manufacturing recommendations are given. Finally, an example five-cylinder diesel engine shafting system design is presented. The sea trial vibration measurements have proved the concept as well as the performed calculations.

Shafline ; design ; torsional vibrations

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