1 Reply Latest reply on May 17, 2018 11:45 AM by Ryan Dark

Input G RMS value in Random Vibration

Lakhvinder Singh May 17, 2018 10:55 AM

Hi All,

I am running a Random Vibration analysis. But the value given is 0.025G RMS. How do I input this value in the Uniform Base Excitation, acceleration tab which has g^2/Hz units? Any advice please?

Regards,

Re: Input G RMS value in Random Vibration

Ryan Dark May 17, 2018 11:45 AM (in response to Lakhvinder Singh)

Lakhvinder,
I believe you will need to convert your RMS value back to PSD (g^2/Hz). This article (Converting between Sine Amplitude and PSD - m+p international) notes how you would do this and a couple useful equations:
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