Learning Forum

[Tonmoy]

Hi everyone!

For our simulation we were largly using the LS-PrePost to postprocess the output files. Now, we were wondering, if there is any way to save only the results (displacement, velocity and acceleration) of specific nodes in an ASCII/text file directly without the need to open lsprepost again?

Thanks in advance for your help!

- Tonmoy.

[Ram Gopisetti]

Hi, 

try using the database_history_node (id, set)

in smp run it outputs nodeout which has following header with time stamp 

 nodal point  x-disp     y-disp      z-disp      x-vel       y-vel       z-vel      x-accl      y-accl      z-accl      x-coor      y-coor      z-coor

in mpp run it will be output in binout you can also check the elout database 

cheers, ram 

[Jim Day]

In addition to *DATABASE_HISTORY_NODE to choose the nodes for output, you'll need to include *DATABASE_NODOUT to specify the output time interval for the output file nodout. When you run SMP LS-DYNA, nodout is simply a text file.

[Tonmoy]

Thank you, Ram and Dr. Day, for your helpful responses and wonderful clarifications. Our model has many components and requires a lot of computational resources, so MPP was our to go.

However, now I have another relevant question: is there any way to read and process the data from the “binout” file without using LS-PrePost or save it directly as a text file?

 

[Tonmoy]

All right, I've found that another subscriber already asked that question and that solves this problem. Interested users can take a look at that: /forum/forums/topic/ls-dyna-output-extension/

Thank you again Dr. Day and Ram for you input on this issue.