What is SYSTEM(216)?

I recently started using Patran/Nastran 2018. I just noticed that my nastran input files now have the following command at the top: NASTRAN SYSTEM(216)=YES. I do not recall seeing that with previous patran/nastran versions. Unfortunately, I cannot find this particular system cell documented in the QRG or any other manual.

Please tell me why there is no mention of system cell 216 in the QRG or any other version 2018 manual. I would like to know what this command is doing and if it is necessary. I expect all commands to be documented in your manual. Am I expecting too much?

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0 Don.Graff over 6 years ago

I played around a bit and couldn't get Patran to export a bdf with that system cell... did you happen to import an existing bdf into Patran? Or could there be a Direct Text input defining that line?

I will create a bug report asking for this to be added to the documentation if I can reproduce Patran writing it...
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0 Don.Graff over 6 years ago

I played around a bit and couldn't get Patran to export a bdf with that system cell... did you happen to import an existing bdf into Patran? Or could there be a Direct Text input defining that line?

I will create a bug report asking for this to be added to the documentation if I can reproduce Patran writing it...
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