Frequency of interest and frequency of damping? 回答済み
What is the difference between frequency of interest and frequency of damping. I'm modelling piezoelectric transducer with driving frequency of 2MHz, simulating it in the water medium. I haven't got impedance response at 2MHz. So may i know how to find frequency of interest and frequency of damping ?
1件のコメント
Hi Vishnu,
The frequency of interest is used as a parameter to control mesh resolution. We recommend 15 elements per wavelength to resolve discretize the waves sufficiently. This is typically set to the center of your operating frequency band. For example, if you interested in data up to 2 MHz, your drive frequency should be around 1 MHz assuming your time domain input signal has enough energy to cover this frequency range. Remember we are operating in the time domain, so you can FFT the time trace to determine if this covers your frequency range of interest.
Frequency of the damping, again we set this to the center of the operational frequency band to ensure our damping models are accurate over this frequency range. If your drive signal is at the center of the operational band, then you set both to the same frequency value.
Thanks,
Kevin
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