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What is modal testing?

  1. Apr 10, 2003 #1

    enigma

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    Hi all,

    I came across this term:

    "Modal testing"

    in a job description on monster.com, and I don't know what it is (at least I don't think I do...)

    Anybody have an example of what a person who would be:

    "Assisting in the preparation of test plans and support strength, vibration, and modal testing."

    would do?

    Thanks
     
  2. jcsd
  3. Apr 10, 2003 #2

    Greg Bernhardt

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    Staff: Admin

  4. Apr 10, 2003 #3
    I always think 'model'
    Here is some detail from the following link; http://www.ias.ac.in/sadhana/Pdf2000June/Pe871.pdf

    The theoretical approach to structural dynamic design is classical and straightforward. A mathematical model is constructed to describe the dynamic properties of the structure in question, usually in the form of a spatial model comprising mass and stiffness descriptions
    (usually as mass and stiffness matrices) as well as some consideration of the damping effects which are likely to be present. This model is then used to predict the vibration properties of the structure in the form of its modal properties ± natural frequencies, mode shapes and modal damping factors. These describe the ways in which the structure chooses to vibrate under `natural' conditions, with no external excitation applied to it.
     
  5. Apr 10, 2003 #4

    enigma

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    Oh, OK. I knew what it was, but I just didn't know what it was called. Thanks all.

    Frustrating. I'm doing this stupid "resume, cover letter, T-letter" (at least the third time I've had the same assignment starting in 10th grade) assignment for my english class, and I find a job which is absolutely perfect for me... Just what I want to do, in the field I want to work in, 10 minutes from my house

    If only I had one more year of classes under my belt.

    *sigh*
     
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