VDV in diadem

[Sojus]

Hi,

I have a time and acceleration channel. I compleated the acceleration weighing according to ISO 2631 and also calculate the RMS value of acceleration. But now I have a problem with calculating the VDV (Vibration dose value). This value is given by the integration of weighed acceleration  . Any suggestion how to calculate this precise value of definite integral?

Thank you for any idea. 

[ML927]

Hi Sojus,

Have you tried that function ?

If yes, what is the problem you are running into ?

[Sojus]

Yes i tried this function. But I need to obtain a value of define integral not an another curve. So i need to calculate the area under this curve.

[ML927 · Accepted solution]

If you read the help for the Integrate function you will notice that the resulting curve is the cumulative sum of the "trapezes" used to calculate the said integral. Which means that you have the integral value for each 0 to T pair (T being a value of your X axis). If you look at the last value of the resulting curve you will get the value you want 😉

I hope what I wrote is clear.