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Estimation of Nutation Time Constant Model Parameters for On-Axis Spinning SpacecraftCalculating an accurate nutation time constant for a spinning spacecraft is an important step for ensuring mission success. Spacecraft nutation is caused by energy dissipation about the spin axis. Propellant slosh in the spacecraft fuel tanks is the primary source for this dissipation and can be simulated using a forced motion spin table. Mechanical analogs, such as pendulums and rotors, are typically used to simulate propellant slosh. A strong desire exists for an automated method to determine these analog parameters. The method presented accomplishes this task by using a MATLAB Simulink/SimMechanics based simulation that utilizes the Parameter Estimation Tool.
Document ID
20130009976
Acquisition Source
Kennedy Space Center
Document Type
Conference Paper
Authors
Schlee, Keith (QinetiQ North America Kennedy Space Center, FL, United States)
Sudermann, James (NASA Kennedy Space Center Cocoa Beach, FL, United States)
Date Acquired
August 27, 2013
Publication Date
August 18, 2008
Subject Category
Astrodynamics
Report/Patent Number
KSC-2008-156
Meeting Information
Meeting: AIAA/AAS Astrodynamics Specialist Conference and Exhibit
Location: Honolulu, HI
Country: United States
Start Date: August 18, 2008
End Date: August 21, 2008
Sponsors: American Astronautical Society, American Inst. of Aeronautics and Astronautics
Funding Number(s)
CONTRACT_GRANT: NAS10-02026
Distribution Limits
Public
Copyright
Public Use Permitted.

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