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When you perform static analysis after applying load transfer in an MBD model, the analysis may fail with the following error message:
An internal solution magnitude limit was exceeded. Please check your Environment for inappropriate load values or insufficient supports. Also check that your mesh has more than 1 element in at least 2 directions if solid brick elements are present. Please see the Troubleshooting section of the Help System for more information.
If a body is not supported sufficiently, the analysis fails with the above error message.
This often occurs when the model lacks adequate constraints to maintain stability under the applied load.
In this case, go to Analysis Settings - Solver Controls and change the Weak Springs option from "Off" to "Program Controlled" to perform the analysis smoothly. Weak springs are used to provide artificial support, ensuring that the model remains stable during the analysis. (Ansys creates weak springs internally to balance the model.)
The use of weak springs can be crucial in situations where the model's constraints are not sufficient to prevent rigid body motion. By activating the weak springs, you allow the solver to automatically introduce these supports, which can help in achieving convergence and obtaining meaningful results.
