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Multi-Scale Dynamics, Control, and Simulation of Granular SpacecraftIn this paper, we present some ideas regarding the modeling, dynamics and control aspects of granular spacecraft. Granular spacecraft are complex multibody systems composed of a spatially disordered distribution of a large number of elements, for instance a cloud of grains in orbit. An example of application is a spaceborne observatory for exoplanet imaging, where the primary aperture is a cloud instead of a monolithic aperture. A model is proposed of a multi-scale dynamics of the grains and cloud in orbit, as well as a control approach for cloud shape maintenance and alignment, and preliminary simulation studies are carried out for the representative imaging system.
Document ID
20150007477
Acquisition Source
Jet Propulsion Laboratory
Document Type
Conference Paper
External Source(s)
Authors
Quadrelli, Marco B.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Basinger, Scott
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Swartzlander, Grover
(Rochester Inst. of Tech. Rochester, NY, United States)
Date Acquired
May 6, 2015
Publication Date
July 1, 2013
Subject Category
Spacecraft Design, Testing And Performance
Meeting Information
Meeting: Multibody Dynamics 2013
Location: Zagreb
Country: Croatia
Start Date: July 1, 2013
End Date: July 4, 2013
Sponsors: European Community on Computational Methods in Applied Sciences
Distribution Limits
Public
Copyright
Other
Keywords
granular media
distributed systems
multibody dynamics
spacecraft

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