Prof. Dr.-Ing. Stefan Krüger

Address

Hamburg University of Technology
Institute of Ship Design and Ship Safety
Am Schwarzenberg-Campus 4 (C)
D-21073 Hamburg

Phone

040-42878-6105

Fax

040-42731-4467

Room

3.009

E-Mail

krueger(at)tuhh(dot)de

Publications

[81844]
Title: Hydrodynamic Damping and Added Mass of Modern Screw Propellers.
Written by: Stefan Krüger, Wilfried Abels
in: <em>OMAE, Trondheim, Norway</em>. (2017).
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[pdf]

Note:

Abstract: The operation of ships with “slow-steaming” poses new problems for the torsional vibration analysis of the drive train. It is well known that the propeller determines the essential part of the mass moment of inertia and the system damping. Both values are determined during the initial design phase by semi- empirical methods with have originally been developed by Schwanecke and Grim between 1970 and 1980. Since then, propeller designs have changed significantly and it is unclear if modern propeller designs are still covered by these calculation methods. The paper suggests an extension of Grim’s and Schwanecke’s method for modern screw propellers in homogeneous and unsteady flow.

Projects / Research Projects