modal Q-factor in FEKO CMA

Altair Forum User
Altair Forum User
Altair Employee
edited October 2020 in Community Q&A

Hi,

 

Has anyone furthered  FEKO characteristic mode analysis (CMA) for 'modal Q factor' calculation (for individual modes and also considering all modes at specific frequencies of interest) after CM modes (and associated eigen values, modal significance, characteristic angle) are found in FEKO?

 

If so, this would be very helpful and would like to know how to setup for it, any specific article/paper?

 

Regards

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Answers

  • Wilco Strydom
    Wilco Strydom New Altair Community Member
    edited February 2018

    Modal Q factors are not currently directly available in FEKO.
    If you would like to perform your own Q factor calculations with FEKO extracted Z-matrices you can have look at the following paper:
    http://ieeexplore.ieee.org/document/5996827/

  • ferdaousAbderrazakLajili
    ferdaousAbderrazakLajili Altair Community Member
    edited December 2018
    Altair Forum User said:

    Modal Q factors are not currently directly available in FEKO.
    If you would like to perform your own Q factor calculations with FEKO extracted Z-matrices you can have look at the following paper:
    http://ieeexplore.ieee.org/document/5996827/

    Hi, 

    In this article, the expression of the Q factor contains the eigencurrents and eigenvalues .. at least this is what I undrestood so can you please explain me how to extract them 

    <?xml version="1.0" encoding="UTF-8"?>image.thumb.png.4db6b4e7ca5e7b633c320f0df4acfaa2.png

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