cruiser / feeder docking demonstratorse00b6fe9822a4c12.jimcontent.com/download/version... ·...

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

Layout name

Page no.

Auto Date


2

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


3

Introduction

26.05.2014

Three type of reduced scale

prototype to test different technical

solutions.

Control Demonstrator

Docking Demonstrator

Cruiser Demonstrator


4

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)


5


26.05.2014

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


6


26.05.2014

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


7

LS-Dyna analysis on Feeder

26.05.2014

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


8

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.


9

Rigid Structure

26.05.2014

The detailed project is in progress.

Feeder Cruiser


10

Docking System

26.05.2014

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.


11

Docking System

26.05.2014

Permanent magnet plate

Connection plate


12

Docking System

26.05.2014

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


13

Docking System

26.05.2014

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)


14

Control Equipment

26.05.2014

Feeder Cruiser


15


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


16


26.05.2014

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


17

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

18


Stefania Barbero

Aero Sekur S.p.A.

R&D Space & Innovation

Via Bianco di Barbania, 16

Caselle Torinese, 10072, Italy

[email protected]

Contact

26.05.2014

cruiser / feeder docking demonstratorse00b6fe9822a4c12.jimcontent.com/download/version... ·...

Documents