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Chapter 10 Theoretical Description
Further we will call the problem, from which the data are being loaded, the source
problem, and the problem, which imports the data, the target problem.
There are several rules to follow with coupled problems:
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Both source and target problem must share a single model file.
Both problems must use the same formulation (plane or axisymmetric).
Source problem must be up-to-date when solving the target problem.
Note. In spite of the requirement that coupled problems must use the same model file,
the geometrical region for the problems need not coincide, i.e. some subregions those
are in use in one problem, could be excluded from consideration in the other one.
Importing Joule Heat to Heat Transfer Problem
While importing data from DC or AC conduction problem to heat transfer one, heat
sources due to Joule law are assumed in all subregions included into consideration in
both source and target problems. In transient or AC magnetic problems, Joule heat is
generated in all conductors. When importing Joule heat from transient magnetic
problem into transient heat transfer, both processes are assumed to run
synchronously. With this feature, you can simulate time-dependent heat distribution
arising from time-dependent electric current distribution (including eddy currents) in
a magnetic device.
Importing Temperature Distribution to Stress Analysis
Problem
While calculating thermal stresses, initial strains are assumed in all subregions, which
are included into consideration in both problems and possess nonzero value of
thermal expansion coefficient (or at least one of its components in anisotropic case).
While importing the temperature distribution from the transient problem, you can
choose the moment of time, the state at which you wish to import.
Importing Magnetic Forces to Stress Analysis Problem
While importing magnetic force to stress analysis problem: