Accession Number : ADA601121


Title :   2H Singularity-Free Momentum Generation with Non-Redundant Single Gimbaled Control Moment Gyroscopes


Descriptive Note : Conference paper


Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CA


Personal Author(s) : Sands, Timothy A ; Kim, Jae J ; Agrawal, Brij


Full Text : http://www.dtic.mil/dtic/tr/fulltext/u2/a601121.pdf


Report Date : Dec 2006


Pagination or Media Count : 7


Abstract : Two objectives dominate consideration of control moment gyroscopes (CMGs) for spacecraft maneuvers: High torque (equivalently momentum) and singularity-free operations. This paper adds to the significant body of research towards these two goals utilizing a minimal 3-CMG array to provide 646% singularity-free momentum performance increase spherically, compared to the ubiquitous pyramid arrangement skewed at 54.730. Spherical 1H (1 CMGs-worth momentum) singularity free momentum is established with birectional 1H and 2H in the third direction in a baseline configuration. Lastly, momentum space reshaping is shown via mixed skew angles. These claims are demonstrated analytically, then heuristically, and finally validated experimentally.


Descriptors :   *GYROSCOPES , *MOMENTUM , CONTROL , MANEUVERS , MOMENTS , SKEWNESS , SPACECRAFT , VALIDATION


Subject Categories : Navigation and Guidance
      Mechanics


Distribution Statement : APPROVED FOR PUBLIC RELEASE