Body of revolution with zero external moment in body coordinates

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Body of revolution with zero external moment in body coordinates

June 11, 2015 compiled on — Wednesday July 06, 2016 at 08:36 AM

A cylinder is given initial spin around its z axes. Clicking on the perturbe button causes initial spin to be given around the x-axis. The space and body cones are visualized. Euler 3D equations for zero torque are solved analytically for this simplified special case where $ωz = constant$ .

Implementation follows theory explained on pages 114-115, in space dynamics book, by William Thomson, 1961. Both retrograde (when $Iz > Ix$ ) and direct precession ( $Iz < Ix$ ) can be visualized Different options are available to help analyze the dynamics of the system