floating device proposal

Group 3

Daniela Nicola / Florent Dumay / Christian Stoll / Jussi Hietala / Juho Rautio / Juha Korva / Vesa-Pekka Arola

Content

design issues design proposals / features calculations costs other potential usages

Design issues

JT service Oy would benefit from design solutions for:

a lighter bigger boat/float

an all round profit bringing easier to store

cheaper and easier ways for transportation

expand customer base by expanding its services

Design proposal

1. New materials buoys manufacturing: Syntactic Foam:

Qualities

Light, strong, it doesn’t need special tooling Controlled buoyancy Wide range of specifications e.g. stronger

epoxy outer layer outside, lighter inside Very stable qualities and a long life It can machined with other materials: plastic

skin or aluminium extrusions

Already used in marine applications

Highly taylorable

High-impact and abrasion resistant coatings

Available in high-visibility orange or yellow

Shape

Modularity

2 separate pontoons Sliding structure to be used as a platform Modular sizes; easy to customize dimensions Easy to transport and store Easy to assemble on site Smaller winches can handle the assembly

Side view

Top view

Front view

Some calculations

For a length of 9m a width of 1.5 meters the combined weight of 2 pontoons is only approx. 500kg.( water displacement=27cubic metres

The capacity is of a minimum 20 tonnes The platform weight (bridge structures) Aluminium with steel grade strength will make the

platform lighter and stronger: under 100kg

Some basic structures

Costs

Manufacturing : syntactic foam: approx. 16 €/kg Tooling (manufacturing hire facilities + syntactic foam ) = approx

10,000€ Aluminium extrusion ramps + platform (manufacturing hire facilities +

aluminium)=5,000€

Design work: 200 hours @ 6,000€ Patents: 3,000€ Engines: 2x 14,000€ = 28,000€ Other costs (transport, advertising): €2,000TOTAL per item = approx. 54,000€

Other potential usages

Dredging: cutting reeds Ferry service: for transporting vehicles (cars,

motorbikes,…) Hiring / Loan service Scuba diving platform Bridge repairing