Download - Krzysztof Pennar Moshe Zilversmit Jon Winkler John Pignetti Ariane Mortazavi Takeshi Fuchiwaki
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Krzysztof PennarMoshe ZilversmitJon WinklerJohn PignettiAriane MortazaviTakeshi FuchiwakiJosh Fromm
Structures Team
Fall 2004 Final Report
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Baseline Mission
Current Work:• Pin Pullers and Hinges• Updated Solidworks
files• Preliminary FEA• New bus configuration• Individual Component
Radiation Hardening Trade:– Showed increase in
mass of 1.12 kg.
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New Bus Configuration
• A preliminary FEA showed that a solid panel bus should be redesigned
• Designed a X-panel bus which weights 3.055kg• Key design issue: Induced moment from being a
piggyback satellite.
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Upscope Mission
• Maintain mass savings with a new bus design vis-à-vis FEA
• A hexagonal bus design was chosen for more stability. It weights 5.487 kg.
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Descope Mission
• With no propulsion tank bus size was reduced to a 30x30x15 cm box.
• Panels were kept solid due to radiation hardening trade. Bus mass is 5.85 kg.
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Mass Savings and Updated MomentsPrevious
Mass (kg)
New Mass (kg)
Savings (kg)
Baseline 7.865 3.055 3.69
Descope 7.865 5.85 2.015
Upscope 7.865 5.486 1.212
Baseline Moments of Inertia (kg * m^2):Ix = 0.6915Iy = 0.7981 Iz = 1.2180
Descope Moments of Inertia (kg * m^2):Ix = 0.644 Iy = 0.661 Iz = 0.160
Upscope Moments of Inertia (kg* m^2);Ix = 0.581Iy = 0.734Iz = 1.117