Define Output Responses - What to put for Expression and Value fields

Wayne K
Wayne K New Altair Community Member
edited December 2021 in Community Q&A

I am stuck on what to put in the the Expression and Value fields (Setup -  Definition - Define Output Responses - under the Define Output Responses Tab).  I want the RCS output to the RCS from Feko. And I want Volume to be the volume of the Sphere. I am not sure how to got about that. I have been following the http://2021.help.altair.com/2021.2/hwdesktop/hst/topics/design_exploration/output_responses_expression_define_t.htm 

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Answers

  • Mel
    Mel Altair Community Member
    edited December 2021

    It may be easiest in your case to just have Hyperstudy parse the Feko *.out file directly.

    The surface area of the sphere will be given at the beginning of the out file:

    Surface of all triangles in m*m:     1.25485E+01

    And RCS ("scattering cross section") is given as well:

          VALUES OF THE SCATTERED ELECTRIC FIELD STRENGTH IN THE FAR FIELD in V                     Factor e^(-j*Re{BETA}*R)/R not considered        LOCATION           ETHETA             EPHI           scattering cross section          POLARISATION    THETA    PHI      magn.    phase     magn.    phase        in m*m                     axial r. angle   direction     0.00    0.00   5.033E-01   -3.09  1.400E-04   81.35      3.18295E+00                 0.0003     0.00   LINEAR

    Then use the "ASCII Extracts" option in Hyperstudy to use the parsed data in the studies. See attached pdf where, for example, the S-parameters, are parsed in the OUT file.

     

  • Wayne K
    Wayne K New Altair Community Member
    edited December 2021

    The instructions were for an older version of HyperStudy, but I was able to figure it out. Attached is my notes how to did it with 2021.2

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