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PV ELITE - EIGEN SOLVER - NATURAL FREQUENCY

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gabrieltunoda

Mechanical
Dec 11, 2019
1
Hello,

I am doing a vessel optimization study and needed to rework the procedure to find the natural frequency of the equipment, but I am having difficulty finding the same value as the PV Elite output. I would like some help understanding how to define the matrix "K". I was setting the matrix [K] as the image below, but I'm not getting the same natural frequency for the first mode. I would like to know how should I define the matrix [K].
Imagem1_zbdsbt.jpg

Imagem2_y1rfqc.jpg

 
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