The Impact of Different Bow Shapes on Large Yacht Comfort

Begovic, Ermina; Della Valentina, Enrico; Mauro, F.; Nabergoj, Radoslav; Rinauro, Barbara

doi:10.3390/jmse11030495

The Impact of Different Bow Shapes on Large Yacht Comfort

Title

The Impact of Different Bow Shapes on Large Yacht Comfort

Author

Begovic, Ermina (Università degli Studi di Napoli Federico II)
Della Valentina, Enrico (Maritime Research Institute Netherlands (MARIN))
Mauro, F. (TU Delft Ship Design, Production and Operations)
Nabergoj, Radoslav (Nasdis PDS d.o.o.)
Rinauro, Barbara (Università degli Studi di Napoli Federico II)

Date

2023

Abstract

The importance of comfort during transfer and stationing becomes a key performance parameter for large yacht design, on the same level as propulsive issues. Such a matter extends questions in terms of form and service demand to the motion behaviour of the unit in waves. Relevant studies refer to outdated hull forms not specific to modern large yachts. In this study, five hull forms with different bow concepts represent the most common design solutions for yachts at constant draught and displacement. The preliminary ranking on the effect of alternative bows on comfort requires the definition of internationally accepted comfort standards. Here, the AWI 22834 guidelines for large yachts provide the service and environmental conditions and criteria for the comfort analysis, being the only reference specific to yachts. The calculations employ a strip-theory-based numerical model to provide results of easy understanding for designers during the early design stage. The obtained ranking among the design solutions on a reference large yacht favours the option nested with a bulb, contradicting the expectations in favour of a vertical bow concept. The discussion and conclusions provide a way forward for additional analyses and investigations aimed at proposing suitable multicriterial design guidelines for large yachts. However, the results also show the unsuitability of AWI environmental and encounter conditions for hull form ranking.

Subject

hull forms
ship design
large yachts
comfort analysis
ship motions

To reference this document use:

http://resolver.tudelft.nl/uuid:c25f7d5a-cbde-46d2-b20d-10342d59c5a3

DOI

https://doi.org/10.3390/jmse11030495

ISSN

2077-1312

Source

Journal of Marine Science and Engineering, 11 (3)

Part of collection

Institutional Repository