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Mateusz L

Frequency response analysis - settings

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Hello, I am writing to ask how correctly set FRA analysis?
I've made an example with simple plate:
1.Modal analysis:
Modal.thumb.PNG.644bf253b9dde77c39d31494d1bfcfcd.PNG

2. FRA analysis:
- frequency function like that (just for example)

image.png.0f8e3b00a4e3658efbc8321a9d10d116.png

- base excitation - acceleration
image.png.ec7a5064b37f5dd08613eeb64c490c56.png

3. Result:
image.png.261c58457f002543c48f33be68a15843.png

Result isn't the same as in modal analysis as I supposed to. I expected peak values in 26Hz, 116Hz, 169Hz where resonace will occur.
 

Somewhere I made a mistake, can anyone help me?

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