Centroid 2D/3D• Centroid is an option for Body that specifies the location of the centroid of a body. • Centroid[bnum] returns a point object corresponding to the centroid of body bnum. • The centroid of each body is initially located at the local origin of the body, unless otherwise specified. • The default setting Centroid->Automatic leaves the current centroid location unchanged. • See also: Inertia, Mass, SetBodies. Further Examples Load the Modeler2D package and define a simple model. Here is the centroid of the link body, with the mass matrix and the centrifugal force vector. The mass matrix is constant and the centrifugal forces are zero--not functions of the orientation or angular velocity of the body--because the centroid is at the local origin.
Out[2]= | |
Out[3]= | |
Out[4]= | |
If we move the centroid, the mass matrix and centrifugal forces are affected.
Out[6]= | |
Out[7]= | |
See HelpModel2D.
|