Torsional vibration spectrum analysis

[CHAJ]

Hello,

I’m currently doing this kind of acquisition:

Using a 360 top digital tacho

Recording for 10 revolution (3600 samples)

t & dt is a result of period acquisition measurement with PCI card

I’m a bit lost with .dat and .ddt files in order to use the samples code

I would like to perform the analysis of order spectrum, waterfall etc…

Thanks a lot for helps

[santo_13]

You attached a TDMS file, where does the dat and ddt files come into picture?

Do you have the software to analyze the data from the TDMS file?

[santo_13]

Check out NI DIAdem, it has several analysis, visualization and reporting features for Mechanical engineering.

https://knowledge.ni.com/KnowledgeArticleDetails?id=kA03q000000x14vCAA&l=en-US

https://www.ni.com/docs/en-US/bundle/diadem/page/exploff/examples/expl_rotatingshaftanalysis.htm

[CHAJ]

Hello,

I was expecting doing the analysis with labview from the original waveform, From the sound & vibration toolkit sample or vi looks to work only with analog or digital tacho signal. I don't know how to convert it, in order to perfor the analysis.

thanks

[santo_13]

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@CHAJ wrote:

Hello,

I was expecting doing the analysis with labview from the original waveform, From the sound & vibration toolkit sample or vi looks to work only with analog or digital tacho signal. I don't know how to convert it, in order to perfor the analysis.

thanks

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You are missing a lot of important information to provide proper suggestion like that you use Sound & Vibration Toolkit with LabVIEW and which exact example are you referring to?

[CHAJ]

Sorry to be unclear,

I would lik to perform with labview some analysis such as the one in the below sample.

I 'm almost sure that I have all the data's (.tdms in 1st post) but I dont know how to convert my RPM profile waveform in tacho file.

Thanks a lot