ACROSOMA速 BEAM APPLICATIONS
18 June 2011 V1
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The information contained in this document is the proprietary and exclusive property of ACROSOMA NV except when otherwise indicated. No part of this document, in whole or in part, may be reproduced, stored, transmitted, or used for design purposes without the prior written permission of ACROSOMA NV. The name “ACROSOMA� is a globally protected name and logo
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Transport Composite Beams to Airbus Illescas (Spain) (35 meter long, 1 ton per beam)
The information contained in this document is the proprietary and exclusive property of ACROSOMA NV except when otherwise indicated. No part of this document, in whole or in part, may be reproduced, stored, transmitted, or used for design purposes without the prior written permission of ACROSOMA NV. The name “ACROSOMA� is a globally protected name and logo
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SUPPORT STRUCTURES FOR TOOLING Acrosoma has acquired a lot of experience in building large composite structures. Most of the recent structures are used in Tooling Support Structures for the Aerospace industry. However, this experience can also be used for other applications where one of the following properties or a combination of these properties is necessary. High stiffness to weight ratio, and minimal thermal expansion are the properties that make these structures so special and competitive against structures made of high tensile steel or in complex configurations.
The HTT (Horizontal Transport Tool) transports and positions the wing cover of the A350XWB in the plants of Stade and Illescas. The high stiffness (7 mm bending over 33 meter with a load of 2,8 ton) and the extreme low weight of the structure (3,6 ton) results in an important cost reduction.
The transportable Jig above is designed for the assembling of the outboard flap of the A350XWB. The weight is 1.700 kg and the deflection in the middle is 0,45 mm. The thermal expansion is minimal.
The information contained in this document is the proprietary and exclusive property of ACROSOMA NV except when otherwise indicated. No part of this document, in whole or in part, may be reproduced, stored, transmitted, or used for design purposes without the prior written permission of ACROSOMA NV. The name “ACROSOMA� is a globally protected name and logo
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SUPPORT STRUCTURES FOR TOOLING The assembling of the leading edge of the A350XWB requires a base that has practically no thermal expansion. In fact, the requirement was for a chassis with less expansion than the shop floor...
The large frames above are developed as bases for the jig for the A350XWB leading edge. The total length of this combination is 40 meter and the cumulated thermal expansion is 0,25 mm per 10°C and 10 meter. The construction has adhesively bonded-on steel plates on top and bottom. These plates have a vertical tolerance of +/- 0,5 mm.
The information contained in this document is the proprietary and exclusive property of ACROSOMA NV except when otherwise indicated. No part of this document, in whole or in part, may be reproduced, stored, transmitted, or used for design purposes without the prior written permission of ACROSOMA NV. The name “ACROSOMA” is a globally protected name and logo
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Acrosoma® Beam Production The Acrosoma production machine produces tri dimensional stitched panels in various combinations. The picture hereunder shows the production of a panel with Carbon Fibre skins. Due to the continuous production process, lengths up to 40 meters are possible.
These long panels are cut in long strips, put into a hydraulic assembling jig and adhesively bonded with pultruded corner profiles into a beam.
The special designed hydraulic jig makes the adhesive bonding over long lengths possible
The information contained in this document is the proprietary and exclusive property of ACROSOMA NV except when otherwise indicated. No part of this document, in whole or in part, may be reproduced, stored, transmitted, or used for design purposes without the prior written permission of ACROSOMA NV. The name “ACROSOMA” is a globally protected name and logo
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Acrosoma® Beam Demonstrator In order to demonstrate the beam structure, and to show the way it is assembled, Acrosoma designed a Demo Beam. The dimensions of this beam are chosen so that this part is still easy transportable and all possible connections and reinforcements are shown. Further in this paper, Acrosoma Engineering worked out some load cases in FEA, that can be checked afterwards.
400
400
500 2360
The information contained in this document is the proprietary and exclusive property of ACROSOMA NV except when otherwise indicated. No part of this document, in whole or in part, may be reproduced, stored, transmitted, or used for design purposes without the prior written permission of ACROSOMA NV. The name “ACROSOMA” is a globally protected name and logo
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Acrosoma® Beam Assembling The Demo Beam is a box construction. The box construction is a combination of Acrosoma® panels and pultruded profiles. The standard Demo Beam has a main beam at which a side beam is connected. The main beam is constructed out of Acrosoma® CV5 panels. The panels are adhesively bonded together with glass fibre reinforced corner profiles. The main beam is made with a small longitudinal rib at the back in Acrosoma® CV2 panel. The side beam is made of Acrosoma® CV2 panels that are bonded together with glass fibre reinforced corner profiles. A transverse rib made out of an Acrosoma® CV2 panel is mounted in the side beam.
Main beam
Longitudinal rib
Side beam
Transverse rib
Panel connection trough adhesive bonded pultruded corner profiles
The information contained in this document is the proprietary and exclusive property of ACROSOMA NV except when otherwise indicated. No part of this document, in whole or in part, may be reproduced, stored, transmitted, or used for design purposes without the prior written permission of ACROSOMA NV. The name “ACROSOMA” is a globally protected name and logo
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Acrosoma® Beam Interfaces IThe structure can have interfaces with: Insert nuts. Steel plates Glass-epoxy laminate plates INTERFACE WITH INSERT NUTS The insert nuts are put in the Acrosoma® panel after curing They allow objects to be bolted on the Acrosoma® structure when it is not possible to get on the other side of the panel. The nutsers can range from M8 to M12.
The insert nut is put only at one side of the panel. Due to the tri-dimensional structure of the panel, all forces are transferred trough the panel on both sides.
The information contained in this document is the proprietary and exclusive property of ACROSOMA NV except when otherwise indicated. No part of this document, in whole or in part, may be reproduced, stored, transmitted, or used for design purposes without the prior written permission of ACROSOMA NV. The name “ACROSOMA” is a globally protected name and logo
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Acrosoma® Beam Interfaces INTERFACE WITH STEEL PLATES The steel plates are bonded on the Acrosoma® panel. They have threaded holes so objects can be bolted on it.
INTERFACE WITH GLASS-EPOXY LAMINATE PLATES The glass-epoxy laminate plates are bonded on the Acrosoma® panel. The thickness of these plates varies between 3 and 20 mm. Local reinforcement, or introduction of point loads Spacer panels Connection panels, with treat holes in it.
The information contained in this document is the proprietary and exclusive property of ACROSOMA NV except when otherwise indicated. No part of this document, in whole or in part, may be reproduced, stored, transmitted, or used for design purposes without the prior written permission of ACROSOMA NV. The name “ACROSOMA” is a globally protected name and logo
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Different compositions of the beam In order to demonstrate the different possibilities of the Acrosoma® Beam, some different compositions of panel combined with various section dimensions have been worked out. The weight of the standard Demo Beam without any additional interface materials, is 95 kg. The table below shows the evolution of the weight of the beam by changing some of its characteristic parameters.
The design of this demo beam has been done in function of minimal defection and minimal thermal expansion and not maximum strength. The same structure in metal with the same technical properties will have a 5 times higher weight. *) A cross-section of the Demo Beam variant with 2 transverse ribs
**) A cross-section of the Demo Beam variant with 1 internal longitudinal rib
The information contained in this document is the proprietary and exclusive property of ACROSOMA NV except when otherwise indicated. No part of this document, in whole or in part, may be reproduced, stored, transmitted, or used for design purposes without the prior written permission of ACROSOMA NV. The name “ACROSOMA” is a globally protected name and logo
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Typical Load Cases and FEA results Two typical load cases have been considered. A 3-point-bending and a torsion test. Detailed information is available on request.
Load Case 1: 3-point-bending test.
Maximum deflection is 0,7 mm
Load case 2: Torsion test
Maximum deflextion is -0,57 mm in Y-direction and 1,29 mm in Z-direction
The information contained in this document is the proprietary and exclusive property of ACROSOMA NV except when otherwise indicated. No part of this document, in whole or in part, may be reproduced, stored, transmitted, or used for design purposes without the prior written permission of ACROSOMA NV. The name “ACROSOMA� is a globally protected name and logo
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The information contained in this document is the proprietary and exclusive property of ACROSOMA NV except when otherwise indicated. No part of this document, in whole or in part, may be reproduced, stored, transmitted, or used for design purposes without the prior written permission of ACROSOMA NV. The name “ACROSOMA� is a globally protected name and logo
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The information contained in this document is the proprietary and exclusive property of ACROSOMA NV except when otherwise indicated. No part of this document, in whole or in part, may be reproduced, stored, transmitted, or used for design purposes without the prior written permission of ACROSOMA NV. The name “ACROSOMA� is a globally protected name and logo