Master Thesis - OUFTI-1

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Parts Components Number Best case (g) Worst case (g) Chassis's panel 3 94 Solar cell 6 Chassis's panels Kapton lm / Adhesive / 31.3 Coverglass / Subtotal 125.3 Box 1 27.33 Battery support Cover 1 19.24 Screw M3 × 8 mm 4 1.86 Subtotal 48.43 Endless screw 4 14.6 Spacer 4 mm 4 0.31 Spacer 15 mm 12 3.39 Fixations Spacer 19 mm 4 1.43 Midplane stando 4 3.03 Washer 4 0.38 Screw M3 × 4 mm 4 1.28 Nut M3 4 1.31 Subtotal 25.73 Total 438.04 Subsystem: Mechanism Parts Components Number Best case (g) Worst case (g) Antennas 435 MHz 1 1.25 145 MHz 1 3.46 Subtotal 4.71 Antenna support Support 1 26 Deployment mechanism 1 1 Subtotal 27 Thermal knife Thermal knife 1 0.5 Subtotal 0.5 Total 32.21 Subsystem: Attitude & Determination Control System Parts Components Number Best case (g) Worst case (g) Permanent magnet Permanent magnet 1 2 3 Subtotal 2 3 Hysteretic bars Hysteretic bar 4 2 3 Subtotal 2 3 Total 4 6 41
Subsystem: Thermal Control Parts Components Number Best case (g) Worst case (g) General Heat sensor 3 3 6 Subtotal 3 6 Heater 2 2 3 Batteries Thermostat 4 0.75 0.85 Wire 8 8 10 Thermal insulation 1 0.02 0.08 Subtotal 10.77 13.93 Cu strap 1 5 10 EPS Bolt M3 3 9 18 Resistance 2 2 3 Subtotal 16 31 Total 29.77 50.93 Subsystem: Electrical Power Supply Parts Components Number Best case (g) Worst case (g) EPS Card 1 64.67 Subtotal 64.67 xEPS Card 1 58.7 Subtotal 58.7 Battery Kokam Batteries SLB 603870H 2 62 66 Wire 4 4 8 Subtotal 66 74 Total 189.37 197.37 Subsystem: On-Board Computer Parts Components Number Best case (g) Worst case (g) FM 430 Card 1 66.85 Subtotal 66.85 OBC 2 Card 1 50.47 Subtotal 50.47 Total 117.32 Subsystem: Telecommunication Parts Components Number Best case (g) Worst case (g) COM Card 1 50 65 Total 50 65 42
Page 1 and 2: University of Liège Faculty of App
Page 3 and 4: Abstract OUFTI-1, standing for "Orb
Page 5 and 6: 3.4 Initial idea . . . . . . . . .
Page 7 and 8: List of Figures 1.1 The Pumpkin's C
Page 9 and 10: 4.18 MAC matrix using the simple me
Page 11 and 12: List of Acronyms ADCS Al AlNiCo ASI
Page 13 and 14: Thesis outline This thesis focuses
Page 15 and 16: of larger satellites. So, the CubeS
Page 17 and 18: 1.2 OUFTI-1 project 1.2.1 Genesis O
Page 19 and 20: • XatCobeo (Vigo - Spain): Develo
Page 21 and 22: Chapter 2 OUFTI-1: Flight system co
Page 23 and 24: Figure 2.2: Product tree of OUFTI-1
Page 25 and 26: 2.3.2 Solar panels The armor panels
Page 27 and 28: • We do not want to drill or manu
Page 29 and 30: In our case, because of the limited
Page 31 and 32: Figure 2.13: Magnetic eld obtained
Page 33 and 34: Figure 2.17: Pictures of the ADCS c
Page 35 and 36: consider the possibility of oshorin
Page 37 and 38: Figure 2.20: Exploded view of OUFTI
Page 39 and 40: I xx , I yy and I zz are called the
Page 41: Subsystem: Structure & Conguration
Page 45 and 46: Chapter 3 Design of a new support f
Page 47 and 48: Figure 3.3: Batteries during and af
Page 49 and 50: The concept is the following one: F
Page 51 and 52: A test under vacuum conditions was
Page 53 and 54: Thermal Expansion (CTE) of the mate
Page 55 and 56: Figure 3.9: Classication by density
Page 57 and 58: The last property to determine is t
Page 59 and 60: • So, it was decided to use two t
Page 61 and 62: is to prevent the batteries' bulge.
Page 63 and 64: • Then, the thermostats, that wil
Page 65 and 66: Figure 3.23: Schematics of the cove
Page 67 and 68: • Other components, including the
Page 69 and 70: 3.9.3 Dynamic behavior Finally, it
Page 71 and 72: 3.10 Summary Through this chapter,
Page 73 and 74: Chapter 4 Electronic cards dynamic
Page 75 and 76: Figure 4.1: Example of manufacturin
Page 77 and 78: Figure 4.4: Illustration of the exp
Page 79 and 80: Figure 4.5: MAC between the two mod
Page 81 and 82: • Global mass/stiness smearing me
Page 83 and 84: 4.2.6 Modeling of the chassis A gen
Page 85 and 86: Q = ω k = 1 ω b − ω a 2 ζ ⇒
Page 87 and 88: Their study was based on the fact t
Page 89 and 90: Figure 4.14: Example of spacecraft
Page 91 and 92: Figure 4.15: Location of measuremen
Page 93 and 94:
Figure 4.18: MAC matrix using the s
Page 95 and 96:
4.3.6 Application of the local mass
Page 97 and 98:
ρ P C 104 connector = 10.12 × 10
Page 99 and 100:
According to this particular shape,
Page 101 and 102:
This is due to the fact that this c
Page 103 and 104:
environment. Then, this model is ex
Page 105 and 106:
5.2.4 Antenna support For the anten
Page 107 and 108:
Components Young's moduli (GP a) Po
Page 109 and 110:
Components Young's moduli (GP a) Po
Page 111 and 112:
5.3 Static analysis As described in
Page 113 and 114:
Figure 5.9: Illustration of the com
Page 115 and 116:
Figure 5.11: Maximal Von Mises stre
Page 117 and 118:
Figure 5.12: First mode of OUFTI-1
Page 119 and 120:
Figure 5.15: Precise PSD of Vega [5
Page 121 and 122:
Chapter 6 Conclusions This master t
Page 123 and 124:
provided for each method used. We h
Page 125 and 126:
last versions of the Verication Con
Page 127 and 128:
[13] Ph. LEDENT. "Design and Implem
Page 129 and 130:
[40] "Dejond - Aluminum Catalog ".
Page 131 and 132:
Appendix A Schemas of solar panels
Page 133 and 134:
Appendix B Schemas of electronic ca
Page 135 and 136:
Appendix C Fixations of the endless
Page 137 and 138:
Appendix D Datasheet of the battery
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Master Thesis - OUFTI-1

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