Changing moment of inertia

frownless · August 15, 2013, 03:03

Hi guys,
I would like to simulate a free motion DFBI body with a changing moment of inertia. Is this possible? The moments of inertia are defined in the initial body coordinate system. If I am changing them do I need to apply a transformation involved with the body rotating? Does anyone have any smart ways to solve this issue?
Cheers!

lava12005 · August 15, 2013, 21:12

Not sure, but I think you can just stay continuing with the axis since it is following the body and then change the value of the Ixx etc by some kind of field function?

August 15, 2013, 03:03	Changing moment of inertia	#1
frownless New Member John Brown Join Date: Jun 2013 Posts: 15 Rep Power: 12	Hi guys, I would like to simulate a free motion DFBI body with a changing moment of inertia. Is this possible? The moments of inertia are defined in the initial body coordinate system. If I am changing them do I need to apply a transformation involved with the body rotating? Does anyone have any smart ways to solve this issue? Cheers!

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August 15, 2013, 21:12		#2
lava12005 Senior Member KHB Join Date: Aug 2010 Location: Singapore Posts: 118 Rep Power: 15	Not sure, but I think you can just stay continuing with the axis since it is following the body and then change the value of the Ixx etc by some kind of field function?