Akademik Veri Yönetim Sistemi
ISUDEF, Madrid, İspanya, 30 Mayıs - 01 Haziran 2022, (Yayınlanmadı)
This
study aims to determine the material performance of additive manufacturing
methods, which enable flexible designs against rapidly changing market needs
with a high benefit/cost ratio to meet the increasing defense needs of
countries. In addition, the design of an unmanned surface vehicle (UVS)
resistant to sea conditions has been realized and produced by additive
manufacturing. Advantages such as freedom of design, on-site manufacturing, and
low cost in low-volume production have made additive manufacturing methods the
focus of today's production method and research topic. Among the additive
manufacturing methods, Fused Filament Fabrication (FFF) is the most
cost-effective and widely used method. In today's small craft sector, boats
made of thermoplastic material are replacing metal hulls and thermosetting
matrix composite hull boats day by day. Although composite boats with
thermoplastic or thermosetting matrix have limitations in terms of size, it can
be said that they are ideal for small USV. In this study, resistance analysis
of the forms of 3 different boats was made with finite element and empirical
methods. The hull form, which exhibits the lowest resistance value, was
produced using the FFF method using PETG co-polymer developed from
environmentally friendly PET material. Cruise and field tests were carried out.
Material performances were determined to be used in the production of
small-scale USVs with the FFF method, and the mini-scale USV was produced using
the PETG material with the FFF method. The suitability of PETG material for
marine uses was emphasized.