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  1. shardin2014

    damping determination at 20kHz

    Higher modes will need high energy for excitation.
  2. shardin2014

    damping determination at 20kHz

    Thanks Greg, I will find the damping by decay method as you suggested. The lower frequency measurement issue will occur in hammer test, but if I am operating at 20 kHz, then decay method should also work. Regards
  3. shardin2014

    damping determination at 20kHz

    Thanks.
  4. shardin2014

    damping determination at 20kHz

    Hello All, I am doing one experiment to find the damping of component made of polycarbonate material at 20 kHz frequency (the first natural frequency of the part is in the range 80 Hz). I want to use this damping in the FEA to simulate the response of the component. Source that I am having can...

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