EDDUMP, NUM, DT
Specifies output frequency for the explicit dynamic restart file
(d3dump).
NUMNumber of d3dump (restart) files written during the analysis
(defaults to 1). When you specify NUM, the time
interval between restart files is TIME / NUM,
where TIME is the analysis end-time specified on
the TIME command.
DTTime interval at which the d3dump (restart) files are written.
If NUM is input, DT is
ignored.
You can use NUM or DT to
specify the time interval at which d3dump restart files will be written. You
should not specify both quantities; if both are input, NUM will
be used. The restart files are written sequentially as d3dump01, d3dump02,
etc.
In LS-DYNA, the restart file output is specified in terms of number
of time steps. Because the total number of time steps is not known until the
LS-DYNA solution finishes, Mechanical APDL calculates an approximate number of time
steps for the solution, and then uses NUM or DT to
calculate the required LS-DYNA input. This approximated number of time steps
may be different from the total number reached in LS-DYNA after the solution
finishes. Therefore, the number of restart dump files or the output interval
may differ slightly from what you requested using NUM or DT.
In an explicit dynamic small restart (EDSTART,2)
or full restart analysis (EDSTART,3), the EDDUMP setting
will default to the NUM or DT value
used in the original analysis. You can issue EDDUMP in
the restart to change this setting.
This command is also valid in PREP7.
Distributed ANSYS Restriction This command is not supported in Distributed ANSYS.