- #1
ajd-brown
- 30
- 0
I have done a test on a 4 piston test engine which is expected to exhibit torsional resonance at 800RPM and a vertical translational resonance at 1200RPM.
The data we gathered from the test bed machine was as follows:
Theta | Signal
0 | -5
60 | -1
120 | 7
180 | 4
240 | 6
300 | -2
360 | -5
We are assuming that the accelerations are periodic with a period of 2∏ (hence 0 and 360 = -5)
I am trying to decompose the Signal using Fourier series of sin and cos, I just have no idea as how to use the data gathered into do this, could someone please point me in the right direction?
Regards,
Anthony
The data we gathered from the test bed machine was as follows:
Theta | Signal
0 | -5
60 | -1
120 | 7
180 | 4
240 | 6
300 | -2
360 | -5
We are assuming that the accelerations are periodic with a period of 2∏ (hence 0 and 360 = -5)
I am trying to decompose the Signal using Fourier series of sin and cos, I just have no idea as how to use the data gathered into do this, could someone please point me in the right direction?
Regards,
Anthony