Download LS-OPT User's Manual - Version 2

CHAPTER 10: HISTORY AND RESPONSE RESULTS
As multiple result output sets are generated during a parallel run, the user must be careful not to generate
unnecessary output. The following rules should be considered:
•
•
•
•
To save space, only those output files that are absolutely necessary should be requested.
A significant amount of disk space can be saved by judiciously specifying the time interval between
outputs (DT). E.g. in many cases, only the output at the final event time may be required. In this case the
value of DT can be set slightly smaller than the termination time.
The result extraction is done immediately after completion of each simulation run. Database files can be
deleted immediately after extraction if requested by the user (clean file (see also Section 6.10)).
If the simulation runs are executed on remote nodes, the responses of each simulation are extracted on
the remote node and transferred to the local run directory.
For more specialized responses the Perl programs provided can be used as templates for the development of
own routines.
All the utilities can be specified through the command:
response response_name {scale_factor offset } command_line.
or
history history_name command_line.
10.6 Extracting response quantities from ASCII output: LS-DYNA
10.6.1
Mass
Command file syntax:
DynaMass p1 p2 p3 ... pn mass_attribute
Table 10-1: Mass item description
Item
p1 ... pn
Mass_attribute
116
Description
Part numbers of the model. Omission implies the entire model.
Type of mass quantity (see table below).
LS-OPT Version 2