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3671. Model Based Mass Properties Engineering at JPL
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Title | 3671. Model Based Mass Properties Engineering at JPL |
Publication Type | Conference Paper |
Paper Number | 3671 |
Year of Publication | 2016 |
Authors | Hendry IV, Morgan, and Gross Johannes |
Conference | 75th Annual Conference, Denver, Colorado |
Conference Location | Denver, Colorado |
Publisher | Society of Allied Weight Engineers, Inc. |
Date Published | 05/2016 |
Abstract | The Soil Moisture Active Passive (SMAP) mission creates global soil moisture measurements every 2-3 days by spinning a lightweight, ~6 meter diameter deployable mesh reflector. This represents the largest spinning antenna ever to be used on a NASA satellite. The paper discusses the mass properties challenges that were overcome in implementing the mission, including the definition of a combined imbalance term called the Effective Product of Inertia, the selection of an optimum Spun Instrument focal length and edge offset that fostered a reduced mass properties sensitivity, the inclusion of late game Spun Instrument configuration flexibility, the use of balance mass locations that leveraged the large moment arm provided by the reflector, and a subassembly measurement campaign that reduced mass properties uncertainties on testable components. |
Pages | 11 |
Key Words | 12. Weight Engineering - Computer Applications, 24. Weight Engineering - System Design |
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