La estabilidad de los Remolcadores durante las asistencias dinámicasla influencia de su diseño y del tipo de propulsión

  1. José M. Pérez Canosa 1
  2. Alsira Salgado Don 1
  1. 1 ETS. Náutica y Máquinas, Universidad de A Coruña
Journal:
Anuario de estudios marítimos

ISSN: 2792-9698

Year of publication: 2024

Issue: 3

Pages: 349-371

Type: Article

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More publications in: Anuario de estudios marítimos

Abstract

Tugs are a key element in the overall safety of ship manoeuvres near ports and sensitive areas. This assistance takes place at low and high speeds where high forces, transmitted through the towline, are generated on the tug. This can lead to a loss of tug’s stability, which suffer its own damage, but also compromising the safety of the assisted vessel’s manoeuvring. In these situations, depending on the design and type of propulsion, tugs behave differently. It is therefore essential to know the forces and moments generated in these extreme situations, and the consequent behaviour of the tug. For this reason, this paper analyses, from a practical point of view, the moments generated in both static and dynamic situations, with special emphasis on the latter, as this is where the greatest forces are generated (escorting). Subsequently, the behaviour of the different types of tugs in the event of a propulsion failure at the most inopportune moment (with the towline under tension) is discussed, and different types of tugs with the same propulsion system, but located in different heads, are compared. Finally, some of the possible tools that can help tug operators to avoid undesirable situations are examined.

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Data source: Dialnet