The Model nodes (as they were called in previous versions), which contained separate model components in a model file, are called
Component nodes in version 5.2a.
Old models that use stationary parametric sweeps are loaded with the Reuse solution for previous step list set to
Yes. The
Run continuation for list is set to the parameter used, unless the continuation algorithm would not have been used for this model in previous versions (for example, if multiple parameters are used or if the parameter list is not monotonous).
Under Graphics and Plot Windows in the
Preferences dialog box, the default settings in the
Optimize for list is now
Quality instead of
Performance.
For the Solid Mechanics interface (and all related multiphysics interfaces) and the Truss interface, the help variable u0 (velocity integration variable) is used in
Prescribed Velocity and
Prescribed Acceleration features for Time Dependent study types. This variable computes the displacement for each point where the condition is prescribed. It is changed to use the full feature scope in order to avoid collisions in cases where several such features exist within the same model component. As a result, when opening and running an old model that uses such features together with a segregated solver, an error message appears, stating that not all dependent variables occur in at least one of the segregated solver steps. The relevant action is to manually add the velocity integration variable to the segregated step containing the corresponding displacement field. Alternatively, you can regenerate any affected solver sequence.