Ansys Learning Forum › Forums › Discuss Simulation › General Mechanical › Harmonic Response-Equivalent stress(Maximum over frequency and Amplitude “ON”) › Reply To: Harmonic Response-Equivalent stress(Maximum over frequency and Amplitude “ON”)
Thanks for the reply, I understood as this way, Please correct me if I am wrong.
-->The intial stress results are RMS(root mean square) where RMS=Amplitude /√2,
Here the solver treats the input value as RMS, consequently the response(stresses, displacement) will also be scaled down by 1/√2, So when I select both option "maximum over frequency" and and Amplitude as "YES", this generally does is, it gives peak stresses or maximum response values that occur due to harmonic loading. This is typically required for fatigue or failure analysis, as components experience peak loads in real- world scenarios. If we select amplitude "NO", solver uses RMS values, here the stress values are lower, which represents the effective value over time(average power in dynamic systems)