Study of superstructure and mast vibrations / frequencies reduction solutions for a maritime tug

  • Alin Marius Pohilca “Dunarea de Jos” University of Galati
  • Daniela Mihaela Loica “Dunarea de Jos” University of Galati
  • Florin Renardo Teodor “Dunarea de Jos” University of Galati
  • Costel Iulian Mocanu “Dunarea de Jos” University of Galati
Keywords: mast, vibration, structural analysis.

Abstract

Onboard vessel heavy rotating equipment and environmental conditions (sailing in waves) are a major source of onboard vibrations that may affect the vessel structure and equipment. Vibrations are propagated through the vessel structure from the engine room all the way up to the superstructure affecting the installed masts. All the equipment installed on the superstructure and the mast, such as antennas, navigation lights, radars etc, are affected by these vibrations which can lead to malfunctioning equipment with major implications in the sailing fitness of the vessel itself. This paper presents the analysis of a tug superstructure and mast vibrations problems caused by the main engine and the propeller rotation. Solutions to optimize the structure and to improve the transmission model of these vibrations are also described.

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References

[1] https://en.wikipedia.org/wiki/Tugboat
[2] https://products.damen.com
[3] https://www.ship-technology.com
[4] Wouter Prins, Pieter van Zutphen, Modular mast ASD Tug range - A standard mast for all Damen ASD Tugs, Gorinchem, May 2011.
[5] Pavol Lengvarský, J. Bocko, Theoretical Basis of Modal Analysis, Department of Applied Mechanics and Mechatronics, Technical University of Košice, Košice, Slovakia, November 2013.
[6] Maritime reporter and engineering news, September 2004.
Published
2020-12-15
How to Cite
1.
Pohilca A, Loica D, Teodor F, Mocanu C. Study of superstructure and mast vibrations / frequencies reduction solutions for a maritime tug. Annals of ”Dunarea de Jos” University of Galati. Fascicle XI Shipbuilding [Internet]. 15Dec.2020 [cited 26Jan.2022];43:27-6. Available from: https://www.gup.ugal.ro/ugaljournals/index.php/fanship/article/view/4004
Section
Articles