Creo Simulate > Reference Links > RMS
  
RMS
Creo Simulate calculates the RMS (root mean square) value of the measure over the frequency range.
This option is available for certain quantities if you selected At Point for Spatial Evaluation and base the measure on one of the directional components. Creo Simulate only calculates measures that use the RMS dynamic evaluation method for dynamic random analyses.
Return to Dynamic Evaluation.