Hull girder: Forced vibration analysis by propeller

Authors

  • Franklin Domínguez

DOI:

https://doi.org/10.25043/19098642.127

Keywords:

lateral vibration, finite element model

Abstract

The non-uniform wake around the propeller generates fluctuating forces on the propulsion shaft. This article presents a methodology used for the forced vibrations analysis of hull girder due to this propeller excitation. This approach is applied to a research boat considering the propeller working in the operating range using a finite element model including all ship structures, rudder, and propulsion lines with their respective supports. Added mass and damping in all submerged elements were also considered. Vibration levels acting in the vessel structure are compared with the limits proposed by ISO 6954 (2000). 

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References

AMERICAN BUREAU OF SHIPPING, Guidance on ship vibration, Houston, ABS, 2006.

DEPT. OF NAVAL ARCHITECTURE AND MARINE ENGINEERING OF UNIVERSTIY OF MICHIGAN, Propeller added mas and damping program (PRAMAD). Revision of September 5, 1980.

H. MUKUNDAN, Finite Element Analysis of a Rudder, Undergraduate Thesis for the completion of Bachelor of Technology in Ocean Engineering and Naval Architecture, Indian Institute of Technology, Madras, July 2002.

HOLDEN, FAGERJORD, FROSTAD, Early Design stage approach to reducing hull surface force due to propeller cavitation, SNAME Trans., 1980.

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IWER ASMUSSEN, WOLFGANG MENZEL, HOLGER MUMM, Ship vibration, Hamburg, Germanischer Lloyd, 2001

LEWIS F.M., The inertia of the Water Surrounding a Vibrating Ship, SNAME transactions, 1929.

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SCHWANECKE H., Gedanken zur Frage der hydrodynamisch erregten Schwingungen des Propellers und der Wellenleitung, Jahrbuch STG, 1963.

T KUMAI, Some Aspects to the Propeller – Bearing Forces Exciting Hull Vibration of a Single Screw Ship, Research Inst. for Applied Mechanics, Kyushu Univ, 1961.

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Published

2016-01-29

How to Cite

Domínguez, F. (2016). Hull girder: Forced vibration analysis by propeller. Ciencia Y tecnología De Buques, 9(18), 35–47. https://doi.org/10.25043/19098642.127

Issue

Vol. 9 No. 18

Section

Scientific and Technological Research Articles

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