Conversion of acceleration to velocity and displacement
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I have seen two different versions for converting acceleration to velocity and displacement and vice versa. 1- Some websites mentioned (Velocity = Acceleration/-i*w) where omega is the frequency in (radians/sec) = 2*pi*f with f in Hz. and (Disp=Acc/-w^2).
i is sqrt(-1)
2-While in some forum it is written (Velocity = Acceleration/i*w) and (Disp=Acc/w^2).
So which one is correct? I noticed that if the fourier transform of time displacement is taken, then the first sentence is correct. However, when the inverse of fourier transform for continuous time displacement is taken, then the second sentence is correct.
I appreciate if some experienced mates help me out.
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Saiprasad Gore
on 16 Feb 2018
@Shz713
After using the code provided by you. The velocity and displacement are obtained in complex number. How do I get both V and D in real numbers. I tried taking abs() of them. But the result didnt match when I tried to check it with the ground motion data obtained from peer berkeley website.
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