Master Thesis - OUFTI-1
Master Thesis - OUFTI-1 Master Thesis - OUFTI-1
Figure 3.18: Schematics of the box The dierent steps of the cover's design are summarized here: • Firstly, just as for the "base plate" and the reinforcers of the box, the thickness of the cover was xed to 1 mm. To avoid a waste of mass, the cover's dimensions were restricted to their minimal value. However, some reinforcements have to be added around the holes of the connection screws to avoid any stress concentration. These reinforcements allow to obtain a lighter design. This step is illustrated in Figure 3.19. Figure 3.19: Reinforcements around the connection holes 61
• Then, the thermostats, that will be placed on the cover side, have to be in direct contact with the batteries. However, the role of the support, which is to prevent the batteries' bulge, must not to be forgotten. This fact does not allow to increase the height of the entire cover. So, some notches have to be manufacture in the cover to allow the thermostats' integration. This step is illustrated in Figure 3.20. Figure 3.20: Notches for the thermostats • An important fact that must be noted is that the thickness of the batteries is not constant. Indeed, there is a small part, including an electrical insulator, which is of negligible thickness. So, to avoid any bulge of the thicker part, some end stops must be added under the cover. This step is illustrated in Figure 3.21. Figure 3.21: End stops • Finally, as for the box, some weld toes are added to obtain the nal design of the cover presented in Figure 3.22. 62
- 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
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- Page 23 and 24: Figure 2.2: Product tree of OUFTI-1
- Page 25 and 26: 2.3.2 Solar panels The armor panels
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- Page 29 and 30: In our case, because of the limited
- Page 31 and 32: Figure 2.13: Magnetic eld obtained
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- 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 and 42: Subsystem: Structure & Conguration
- Page 43 and 44: Subsystem: Thermal Control Parts Co
- 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: is to prevent the batteries' bulge.
- Page 65 and 66: Figure 3.23: Schematics of the cove
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- Page 69 and 70: 3.9.3 Dynamic behavior Finally, it
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- Page 73 and 74: Chapter 4 Electronic cards dynamic
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- 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 ⇒
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- Page 97 and 98: ρ P C 104 connector = 10.12 × 10
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- Page 103 and 104: environment. Then, this model is ex
- Page 105 and 106: 5.2.4 Antenna support For the anten
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- Page 111 and 112: 5.3 Static analysis As described in
Figure 3.18: Schematics of the box<br />
The dierent steps of the cover's design are summarized here:<br />
• Firstly, just as for the "base plate" and the reinforcers of the box, the thickness of<br />
the cover was xed to 1 mm. To avoid a waste of mass, the cover's dimensions were<br />
restricted to their minimal value. However, some reinforcements have to be added<br />
around the holes of the connection screws to avoid any stress concentration. These<br />
reinforcements allow to obtain a lighter design. This step is illustrated in Figure 3.19.<br />
Figure 3.19: Reinforcements around the connection holes<br />
61
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