This is a very brief status report. I will update it with more detail as results become available.
- The goal is to prove the system fulfills the vibration isolation requirement
- I'm modifying Takanori's Simulink/Matlab software.
- See the document attached with the comparison between the simulation and the measurement.
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Currently, the simulation of the TFs without feedback coincides with the measurement to a good extent.
- The quality factors don't coincide in many of the peaks but I guess this is expected because in Matlab we can only model viscous damping, not structural damping.
- Some peaks don't coincide exactly (e.g. 20 mHz difference).
- Above 60 Hz there are additional peaks which likely come from the internal resonances of the IRM.
- Despite the differences, for the purposes of calculating the injected noise the simulation is likely good enough.
- Before tuning the Matlab model to fit the measurements, I compared the simulated TFs with SUMCOM achieving a good agreement.