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Stewart Platform

Question asked by Matthew Frost on Sep 29, 2010
Latest reply on Sep 30, 2010 by Bill McEachern

I'm designing an inverted cable driven stewart platform and wondering if any one has experience modeling this sort of thing and analyzing it in SW?stewart pic.png

 

My first pass was a 3D sketch with weldment profiles for the structure and cable.  It works well with simulation as far as I can get it to spit out axial forces (tension) in the cables, but it is very difficult to change cable lengths.  Even with a design table I easily wind up with kinematic inversions.  Also it is easily possible to show compression in the cables, which in reality would be impossible.

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