June 6, 2022 at 9:58 amFAQParticipant
For full harmonic analysis, one can not define damping ratios as a function of mode. For mode-superposition Harmonic analysis, one can define mode dependent damping ratio with the “MDAMP” command. For example, to set the critical damping ratio for the first mode to 0.05 and for the second mode to 0.02, insert a command:
MDAMP, 1, 0.05, 0.02
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