Structural Dynamics

Structural Dynamics

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  3. During a multi-body dynamic analysis, what does the following message mean? x JOINT ELEMENTS WITH LAG MULT OPTION DO NOT SATISFY JOINT CONSTRAINT CONDITIONS

During a multi-body dynamic analysis, what does the following message mean? x JOINT ELEMENTS WITH LAG MULT OPTION DO NOT SATISFY JOINT CONSTRAINT CONDITIONS

Tagged: 16.2, JOINT ELEMENTS, LAG MULT, mechanical, structural-dynamics, structural-mechanics, Transient (Implicit)
    • January 25, 2023 at 7:34 am
      FAQFAQ
      Participant

      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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