During a multi-body dynamic analysis, I sometimes get the following message:

x JOINT ELEMENTS WITH LAG MULT OPTION DO NOT SATISFY JOINT CONSTRAINT CONDITIONS

What does this mean?


The "LAG MULT" is short for "Lagrange Multiplier," which is the method used to impose the kinematic constraints in the joint elements. When trying to find a solution, this message indicates that the MPC184 joint DOF have not converged within some tolerance.





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