Vibration Tools

Analysis and processing of random and quasi-static vibration tests.

• Random Vibration Testing (RVT)

For RVT you need to use two file: RandomTest.py and RandomEvaluation.py.

The RandomTest.py is used to create the acceleration needed for an envelope Power Spectral Density (PSD). Then, the script save a *.rdf file to be used in Signal Generator RIGOL. The step are:

• Run RandomTest.py
• Select and load the PSD file from "/psd" directory. The files are *.txt, and each file must have two column: Hz & Grms [G^2/Hz].
• Select the number of segment to be used in the evaluation and correction of the random acceleration in [g]
• Input a name for the output files.
• Finalize

RandomEvaluation.py is used to transform the acceleration measure from the sensor to PSD. The step are:

• Load original acceleration.
• Load measure acceleration in *.tdms file.
• Select the number of Sample fsamp
• Run RandomEvaluation.py
• Finalize

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Reference

• Tom Irvine, Vibrationdata. https://www.vibrationdata.com/