Public procurement notice: Contract Notice
Published: 2016-06-25
Buyer: Minesto UK Ltd
Country: UK
Region: Isle of Anglesey
Contract type: Supplies
Procedure: Open procedure
CPV classification: 35512400 | 35521000: Shipborne weapon systems | 38542000
Estimated value: 365000 EUR
Submission deadline: 2016-08-15
Award criteria: The most economic tender
EU fund: ERDF

Technical requirements: Lot 1 — Manufacturing of 12-meter wing in composite material for a submerged tidal power plant. Main materials are carbon fibre and glass fibre. Design depth around 90 metres;
Lot 3 — Design and manufacturing of a test rig for test of the wing section, and the performing of tests on the wing section.
The wing is a composite structure sized about 12 x 3 m. The main objective of the wing is to create a lift force of which a minor part will be used as the propulsive force of the power plant, however it has other sub functions as well.
The basic design is a glass fibre shell with a foam core and carbon fibre beams. There are many different openings/hatches for cabling and other subsystems.
— Optional transport to Minesto's office in Anglesey, Wales, DDP. Please note that the assembled wing does not fit into a 40ft standard shipping container. You may want to consider other container shapes or sea transport.
The test of the wing section could be performed anywhere in Europe. Minesto's design engineers who are based in Göteborg need to be present during the test to failure.
This lot concerns building a test rig for the parts obtained from Lot B, and the testing itself. 2 tests are requested: 1 fatigue test and 1 static test to failure.
With an estimated fatigue failure strain of > 0,4 %, FE simulations show that a fatigue failure is expected to happen for a load of between 1,9 and 3 MN and a static failure in the range of 3-4,5 MN.
The test displacement necessary is at least 10 mm. For fatigue with a load of 3 MN and R = 0,5, the stroke as calculated here by FE modelling is 2 mm. With some margin for flexibility in the rig, etc. a requirement of preferably 3 Hz and at least 1 Hz at 3 MN and with 5 mm stroke (range) is a requirement for specification of the test machine.
The wing section is intended to be consumed in a destructive test. The test facility could be located in Sweden or elsewhere in Europe.
The wing section is a composite structure intended to imitate a critical part of the wing. It has an outer shell with dimensions 1 500 mm x 730 mm x 460 mm (Length x Width x Height) which wraps around the main beams to simulate the wing profile skin. Thickness of the shell is set to 12 mm with internal and external fillets of 10 mm. The wing section has several holes, some for metal inserts, some for an external loading test system.
I found no CPV code for wing section of composite material. Please see the Invitation to Tender for more details.
If you think it may not be obvious from your tender, feel free to include supporting material to convince us that you are suitable to undertake the work you are tendering for. In general, for Lots A and B, you need expertise in manufacturing larger composite structures for sub-sea applications. For Lot C, you need expertise in building and operating test rigs that provide loads up to 5 Mega-newtons.
If you are about to go bankrupt, we will be hesitant. We would prefer an economically stable supplier.
If you have economical problems, please do talk to us. We may be able to sort things out. There are so many factors involved in this kind of venture.

Eligibility requirements: If you think it may not be obvious from your tender, feel free to include supporting material to convince us that you are suitable to undertake the work you are tendering for. In general, for Lots A and B, you need expertise in manufacturing larger composite structures for sub-sea applications. For Lot C, you need expertise in building and operating test rigs that provide loads up to 5 Mega-newtons.

Award value: 365000