Hi All,
I need to know how can we get a mathematical model(state space or transfer function) from frequency response?
The frequency response is resulted from FFT analysis (Force vs. Acceleration.
Thank you in advance for any reply.
sweetday
Thanks to all.
Mike, Yes, reality is much bitter than simulation :P
Your second challenge is actually my last question.
Svanels, the equipment I think is just fine.
The vibrating frequencies are 70Hz, 120Hz and "others"
sweetday
Another question but still related.
To get the model, I did it in ADAMS and estimated it with the system identification toolbox from Matlab.
To compensate force coming from the process, which generates the vibration, my control strategy is to give force but opposite.
My another silly question...
Yeah, i mean double integrate.
In simulation it is working, but how bout putting it in reality? I have no idea on it.
Any answers that might help?
Thank you.
sweetday
Hi all.
I am relative new in vibration control. I was given a task to reduce (eliminate-ideal case) vibration that happened in grinding machine.
I used acceleration and force sensors with help modal analyzer to measure it.
It seems like a dumb question but how can I get the displacement data...
