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  3. Specify a Frequency Range with LINEAR/EIGENSOL?

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Specify a Frequency Range with LINEAR/EIGENSOL?

jpatterson
jpatterson over 7 years ago
I'm running a scripted simulation in A/View (2019) to do a static>Dyn>linear. If I add the command in the "Modify Simulation Script" dbox using the drop down at the bottom, and accepting the defaults, I get...
 
LINEAR/EIGENSOL, FRANGE, NAMES, TABLE_PRECISION=2
 
"FRANGE" sure sounds like it wants to set the frequency range of interest. However, I can't seem to get it to do anything but generate an error, and it's not shown in the help under the LINEAR command (???)
 
Is there a way to set the frequency range for the LINEAR command?
 
(p.s. - I feel like I've asked this question before can't find the question/answer on here)
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  • Jesper Slattengren
    0 Jesper Slattengren over 7 years ago
    Interesting. I can't find any notice of it in the documentation.
    There is an MRANGE=i1,i2 that allows you to specify how many modes you want.
    Have you tried FRANGE=0,100 for example?
    But in general, I would expect ADAMS to calculate all modes and then use KINETIC, DISSIPAT and STRAIN to limit my outputs. I wonder if FRANGE was intended to allow me to specify the range for all of these with one keyword?
     
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  • jpatterson
    0 jpatterson over 7 years ago
    I did...
     
    command: LINEAR/EIGENSOL, FRANGE=0,100, NAMES, TABLE_PRECISION=2
    ERROR: Found an unexpected token while looking for a comma or end of statement.
    ERROR:    Statement          : LINEAR
    ERROR:    Argument           : FRANGE
    ERROR:    Error line text    : 'LINEAR/EIGENSOL, FRANGE[[=]]0,100, NAMES, TABLE_PRECISION=2'
    ERROR:    Error token text   : '='
    ERROR:    Error token type   : equal
     
    ---- START: ERROR ----
    Errors found parsing command. Command ignored.
    ---- END: ERROR ----
     command: !LINEAR/EIGENSOL, NODAMPING, FRANGE, NAMES, TABLE_PRECISION=2
     command: stop
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  • Jesper Slattengren
    0 Jesper Slattengren over 7 years ago
    OK, so much for that theory. Back to @Jose Ortiz​  for explanation then.
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  • jozef.bucha
    0 jozef.bucha over 7 years ago
    you are correct Jim, you was asking this in old forum
     
    forums.mscsoftware.com/.../showflat.php
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  • jpatterson
    0 jpatterson over 7 years ago
    Wow! Exact same question! I'm losing it...!!! Sunglasses
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