CF-5200 Frequently Asked Questions
Question number FAQ-0334
In a shock test, can a positive Y value (dB) of the transfer function be interpreted as amplification due to resonance?
The transfer function (frequency response function) is
Y-axis (dB) = 10Log(chB/chA) 2
represents the ratio of.
If chA and chB have the same acceleration data,
0dB means a ratio of 1, and dB indicates chB > chA, which means it is amplified.
In the case of the impulse hammer and acceleration, it refers to the ratio of acceleration to force.
Both natural frequencies (resonance frequencies) are points that have a mountain-shaped peak.
Last updated date: 2006-01-16