Cruiser / Feeder Docking Demonstratorse00b6fe9822a4c12.jimcontent.com/download/version... ·...
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MAAT – Multibody Advanced Airship for Transport Project ID 285602 / FP7-AAT-2011-RTD-1
Cruiser / Feeder
Docking Demonstrator
Stefania Barbero
Aero Sekur
26.05.2014
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MAAT – Multibody Advanced Airship for Transport Project ID 285602 / FP7-AAT-2011-RTD-1
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Introduction
Selected materials
Material Characterization
LS-Dyna analysis on Feeder
Joining Technology
Rigid Structure
Docking System
Control Equipment
Weights and buoyancy
Next period activities
Table of Content
26.05.2014
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Introduction
26.05.2014
Three type of reduced scale
prototype to test different technical
solutions.
Control Demonstrator
Docking Demonstrator
Cruiser Demonstrator
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Selected materials
26.05.2014
Wipak SC XX 3 PA FP
Multilayer: Polyamide, Polypropylene,
Polyethylene
Tuftane TF 310
Polyester thermoplastic Polyurethane film
Polyester fabric with Polyurethane coating
(PES/PU)
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MAAT – Multibody Advanced Airship for Transport Project ID 285602 / FP7-AAT-2011-RTD-1
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Material Characterization
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Helium Permeability Test
ASTM D 1434 - Determining Gas
Permeability Characteristics of
Plastic Film and Sheeting
Tensile Test
ASTM D882 - Tensile Properties
of Thin Plastic Sheeting
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Material Characterization
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Wipak Tuftane (1) Tuftane (2) Tuftane (3) PES/PU
Weight [g/m2] 78 61 122 184 170
Thickness [μm] 80 50 100 150 180
Transmission Rate [ml/(m2*day)]
758 1279 650 451 2045
Permeability [(ml*mm)/(m2*day*atm)]
61 64 66 68 368
Tensile Strength [N/cm]
46 84 - 86 116
Elongation [%] 710 708 - 757 25
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LS-Dyna analysis on Feeder
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Von Mises stress (GPa) at 0.01 Bar
Max stress = 21 MPa = 10.5 N/cm
Tensile strength of selected material = 84 N/cm
Top Bottom Lateral
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MAAT – Multibody Advanced Airship for Transport Project ID 285602 / FP7-AAT-2011-RTD-1
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Joining Technology
26.05.2014
High-frequency welding
Joining of material by supplying HF energy in the form of an electromagnetic field
(27.12 MHz) and pressure to the material surfaces to be joined.
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Rigid Structure
26.05.2014
The detailed project is in progress.
Feeder Cruiser
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MAAT – Multibody Advanced Airship for Transport Project ID 285602 / FP7-AAT-2011-RTD-1
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Docking System
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The attraction force is
proportionally to the distance
Produce a locking force when two surface are in contact,
removable when the two surfaces have to be separate.
Property of permanent magnets.
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Docking System
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Permanent magnet plate
Connection plate
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Docking System
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Dimensions: 360 x 360 x 40 mm
Estimated weight: < 2 kg BOTTOM VIEW
The permanent
magnet plate is
supported by four
yaws, hinged on the
external frame.
The jaws are moved
by an actuator,
made with a Shape
Memory metal
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Docking System
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OFF - Plate shown in upper position: the docking system is connected
ON - Plate shown in lower position: the docking system is disconnected
(magnetic plate is lowered of about 5 mm)
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Control Equipment
26.05.2014
Feeder Cruiser
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Weights and buoyancy
26.05.2014
Weight [kg]
Envelope 2.75
Structure 3.87
Payload 2.00
Docking System 1.50
Total weight 10.12
Buoyancy 11.82
Delta 1.70
Cruiser
Volume = 11.3 m3
Surface = 45 m2
Material weight = 0.061 kg/m2
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Weights and buoyancy
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Weight [kg]
Envelope 0.92
Structure 1.72
Payload 1.35
Docking System 0.50
Total weight 4.49
Buoyancy 5.68
Delta 1.19
Feeder
Volume = 5.6 m3
Surface = 15 m2
Material weight = 0.061 kg/m2
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Next period activities
26.05.2014
ACTIVITY
MONTH
33 May
34 June
35 July
36 August
Manufacturing of the envelope
Project and realization of the rigid structure
Project and realization of the docking system
Integration
Test on the Docking Demonstrator
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MAAT – Multibody Advanced Airship for Transport Project ID 285602 / FP7-AAT-2011-RTD-1
Stefania Barbero
Aero Sekur S.p.A.
R&D Space & Innovation
Via Bianco di Barbania, 16
Caselle Torinese, 10072, Italy
Contact
26.05.2014