Analysis of the flexural vibration of ship’s tail shaft by transfer matrix method

Autor: Shi-dong Fan, Xiao-jun Jia
Rok vydání: 2008
Předmět:
Zdroj: Journal of Marine Science and Application. 7:179-183
ISSN: 1993-5048
1671-9433
Popis: A ship’s tail shaft has serious flexural vibration due to the cantilevered nature of the propeller’s blades. Analysis of the nature frequency of flexural vibration is vital to be able to provide effective shock absorption for a ship’s tail shaft. A mathematic model of tail shaft flexural vibrations was built using the transfer matrix method. The nature frequency of flexural vibration for an electrically propelled ship’s tail shaft was then analyzed, and an effective method for calculating it was proposed: a genetic algorithm (GA), which calculates the nature frequency of vibration of a system. Sample calculations, with comparisons by the Prohl method under conditions bearing isotropic support, showed this method to be practical. It should have significant impact on engineering design theory.
Databáze: OpenAIRE