Modelling of Torsional Vibrations in Marine Powertrains

960776

02/01/1996

Event
International Congress & Exposition
Authors Abstract
Content
This paper discusses how stationary torsional vibrations in marine power trains with several connection points and branches can be modeled and analyzed. It has been found that increased demands on today's marine diesel engines, in terms of weight, compactness and high output have resulted in systems becoming ever more sensitive to torsional vibrations. Different types of dampers used to limit torsional vibrations in engine crankshafts have been studied.
The analyses performed show that engine irregularity and propeller excitation cannot be disregarded in torsional vibration analyses of marine drive trains. Engine irregularity in this context is the phenomenon that occurs when there is a stochastic variation of cylinder pressures within one engine.
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DOI
https://doi.org/10.4271/960776
Pages
17
Citation
Jonsson, K., "Modelling of Torsional Vibrations in Marine Powertrains," SAE Technical Paper 960776, 1996, https://doi.org/10.4271/960776.
Additional Details
Publisher
Published
Feb 1, 1996
Product Code
960776
Content Type
Technical Paper
Language
English