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dear all
how to solve incompatible kinematic? there is a warning when I make crash analysis.
Hi,
Check where exactly this is coming from.
If it has something to do with constraints, remove the Dof for that particular constraint(s)
As nodal constraints are based on kinematic conditions applied on nodal DOF, therefore it is not allowed to apply two nodal constraints to the same set of nodes. RADIOSS Starter will issue the following warning each time two nodal constraints are applied to the same set of nodes.
This is an undesired warning in a model. It is of very important to take all warnings about incompatible kinematic conditions into account. True incompatible kinematic conditions can generate energy and local instability. In such a case, accuracy of the results will be seriously decreased.
Check the model and find where the nodes are over constrained or where the constraints are violating the loads applied.
Hi, Check where exactly this is coming from. If it has something to do with constraints, remove the Dof for that particular constraint(s)
thanks!
Hi, As nodal constraints are based on kinematic conditions applied on nodal DOF, therefore it is not allowed to apply two nodal constraints to the same set of nodes. RADIOSS Starter will issue the following warning each time two nodal constraints are applied to the same set of nodes. This is an undesired warning in a model. It is of very important to take all warnings about incompatible kinematic conditions into account. True incompatible kinematic conditions can generate energy and local instability. In such a case, accuracy of the results will be seriously decreased. Check the model and find where the nodes are over constrained or where the constraints are violating the loads applied.
Thanks for your patience! I will check my model.
Check your boundary condition
have you applied them on rigid nodes also?
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