A stepwise approach, with its origin in simple methods based on past experience and engineering judgement, is suggested as a means of highlighting possible types of problems likely to be encounted and of removing abvious problem sources before any extensive analyses are carried out. A study of all possible types of vibration sources would, however, be very extensive and costly. Based on statistics from in-service measurements, it is possible to concentrate on the types of vibration with the highest probabilities of occurrence thus balancing the cost of the study against the risk of overlooking any critical aspects. Analysis of propeller excitation forces and vibration response is discussed in detail with special empnasis on methods for keeping the cost of the analysis on a reasonable level.(Wassmann)
Propeller induced ship hull vibration: design stage calculation with sufficient accuracy at a reasonable cost
Propellerinduzierte Schiffsrumpfschwingung: Auslegungsberechnung mit ausreichender Genauigkeit zu vernuenftigen Kosten
1979
21 Seiten, 17 Bilder, 3 Tabellen, 20 Quellen
Aufsatz (Konferenz)
Englisch
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