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SAP2000 V14.2.4

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A tuned-mass damper (TMD), also known as a pendulum damper, is not really a damper, but rather a pendulum or another gravity-based oscillator which is attached to the structure in such a way that it counteracts the vibration of one or more fundamental modes, thereby reducing the wind and/or seismic response of those modes.



Figure 1 - Model 2 - Test model with TMD


The general procedure for modeling a tuned-mass damper is given as follows: