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Ansys Learning Forum › Forums › Discuss Simulation › General Mechanical › Transient structural (Non-linear) Vs Harmonic analysis (modal based) › Reply To: Transient structural (Non-linear) Vs Harmonic analysis (modal based)

February 9, 2024 at 2:33 pm
dlooman
Ansys Employee

So, you should be comparing results with large deflection off to get an apple to apple comparison.  Gamma = 0.1 is like a log decrement of 0.1.  Damping ratio is about equal to log decrement divided by 2pi.  So in the transient you have more damping.  How different are the two stresses?  What's the maximum harmonic stress?