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Difference in .pch and .h3d file Plot

User: "Lukas Kneer_21880"
Altair Community Member
Updated by unknown

My Problem is, that a Plot from the .pch-file data is different than the Plot in HyperGraph from the same solve. The Data come from a Frequency Response Analysis with an acceleration output in a frequency range from 0-500Hz. The Problem is that the max. values of the Punch file are different to the values of the .h3d file, as shown below. Any idea why?

imageThe HyperGraph Plot has a peak at 105 Hz with an acceleration of about 3.8g

image

The Plot from the .pch file (Plot with MATLAB) has a drop at the Point where the peak should be (only 0.459g at 105 Hz). As you can see, this problem has every curve.

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