Hydrofoil deployment mechanism for rescue boat: Lightweight and cost-efficient solution to deploy a hydrofoil from a mid-sized boat
Typ
Examensarbete för masterexamen
Master's Thesis
Master's Thesis
Program
Product development (MPPDE), MSc
Publicerad
2023
Författare
Byström, Fredrik
Modellbyggare
Tidskriftstitel
ISSN
Volymtitel
Utgivare
Sammanfattning
Product development of a hydrofoil deployment mechanism
A lightweight and cost-efficient solution aimed to be used in the Swedish Sea Rescue
Society’s next-gen electric rescue boats.
FREDRIK BYSTRÖM
Department of Industrial Materials and Science
Chalmers University of Technology
Hydrofoiling boats are being introduced into commercial usage throughout the
world. Being a relatively new phenomena (relative to the industries’ more established
non-foiling boats) optimal ways of handling and controlling hydrofoils have
not yet been discovered or established. This thesis aims to investigate a possible
solution to the handling (restricted to managing lift and drag forces generated by
a hydrofoil) and controlling of hydrofoils (restricted to deploying, retracting and
controlling trim). The context in which this has been performed is on a moderately
sized 2.6 ton and 8 meter long rescue boat from the Swedish Sea Rescue Society,
aimed to be used in lakes and coastal areas in Sweden.
Possible solutions have been investigated by following a typical new product development
process between the phases of establishing requirements up until early
detail design. Results include proof-of-concept CAD models that have been evaluated
using FEA simulations. Findings suggest that a winch-based solution using
HMPE-fiber synthetic rope is optimal as a means to lower overall weight. Furthermore,
a support structure that allows for vertical linear movement whilst being
exposed to lift- and drag forces from the hydrofoil is needed. Future work would
entail proceeding with detail design with a focus on design-for-manufacturing and
performing further stress- and weight optimizations.
Beskrivning
Ämne/nyckelord
Hydrofoil, Engineering design, Swedish Sea Rescue Society, Boat, Seafaring vessel, Mechanics, Winch