General Mechanical

General Mechanical

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In ‘random vibration’ analysis,how to define PSD curve?

    • woaiwan2010

      Do the PSD  curves need to be manually interpolated?

      What is the result of automatic interpolation?

      How automatic interpolation is achieved?

      How many points to interpolate between each eigenfrequency?

      using Ansys Student Ansys Workbench

    • peteroznewman
      A common form of a PSD profile is three straight lines. A positive slope at low frequencies, a flat top and a negative slope at high frequencies.
      Four points define those three lines. You don't need to manually interpolate, the solver will do that for you automatically when you specify the frequencies you want to include in the results.
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