def_rot_axis_FoR_wrt_node_xyz¶
This function generates the stiffness and damping matrices and the independent vector associated to a joint that forces the rotation axis of a FoR to be parallel to a certain direction. This direction is defined in the B FoR of a node and parallel to x, y or z
See LagrangeConstraints
for the description of variables
- param rot_axisB
Rotation axis with respect to the node B FoR
- type rot_axisB
np.ndarray
- param indep
Number of the equations that are used as independent
- type indep
np.ndarray
- param node_number
number of the “node” within its own body
- type node_number
int
- param node_body
body number of the “node”
- type node_body
int
- param node_FoR_dof
position of the first degree of freedom of the FoR to which the “node” belongs
- type node_FoR_dof
int
- param node_dof
position of the first degree of freedom associated to the “node”
- type node_dof
int
- param FoR_body
body number of the “FoR”
- type FoR_body
int
- param FoR_dof
position of the first degree of freedom associated to the “FoR”
- type FoR_dof
int