SISO FRF analysis with repeat measurements
Measurement sequence with repeat measurements.
FRF analysis with repeated SISO measurements on a simulated system with three degrees of freedom: a modal loop generates and analyses a synthetic impulse and impulse response through signal generators. The characteristic calculation determines the FRF spectrum without exponential windowing (suitable for modal damping analysis), calculates the impulse response function and detects resonance peaks. A special feature: the quality factor is determined with five methods in parallel for comparison — after Ewins, rational fraction polynomial (RFP), x-dB, v-dB and circle fit.
Workflows in detail
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SISO Measurement
Measurement sequence with repeat measurements.
Start → modal loop (signal generator impulse → signal generator impulse response → SISO FRF analysis) → end; error flow present.
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SISO FRF
Characteristic block with a five-method comparison of damping determination.
Characteristic start → FRF spectrum → impulse response function (IRF) → peak detection → quality factor after Ewins → RFP → x-dB → v-dB → circle fit → characteristic end.
Inside the software
Take it with you
Import through the SonicTC DbManager — individually or merged into an existing database.
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