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*MPC

Keyword type: model definition

With this keyword card a multiple point constraint is defined, usually a nonlinear one. Right now, three different MPC's can be selected.

If NLGEOM is not specified on the *STEP card, the MPC is linearized. Note that depending on the degree of nonlinearity of the MPC linearization can lead to significant errors in the results. It is generally advisable to start with a linear calculation to check the correctness of the structure, loading and boundary conditions. If the linear calculation runs satisfactorily, a geometrically nonlinear calculation should be performed.

There are no parameters for this keyword card.


First line:

Second line:

Following lines (as many as needed):

Example:

*MPC
PLANE,3,8,15,39,14

specifies that nodes 3, 8, 15, 39 and 14 should stay in a plane. The plane is defined by nodes 3, 8 and 15. They should not be colinear.


Example files: beammr, beamplane, beamstraight.


next up previous contents
Next: *NO ANALYSIS Up: Input deck format Previous: *MODAL DYNAMIC   Contents
guido dhondt 2005-02-26