1996-02-01

Modelling of Torsional Vibrations in Marine Powertrains 960776

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.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Torsional Vibration of Drive Trains

941697

View Details

TECHNICAL PAPER

Holographic Vibration Analysis and a Study of Engine Noise Control

850323

View Details

TECHNICAL PAPER

Analysis of Rotational Vibration Mechanism of Camshaft at High Engine Speed in Engines with In-Line Four-Cylinder DOHC Configuration

2018-32-0072

View Details

X