Development of a Frequency-Adjustable Tuned Mass Damper (FATMD) for Structural Vibration Control

Figure 10

Acceleration of the structure with and without an FATMD for different excitation frequencies. (a) Acceleration of the structure vs. time (f = 20.1 Hz, L = 1.0 m), (b) acceleration of the structure vs. frequency (f = 20.1 Hz, L = 1.0 m), (c) acceleration of the structure vs. time (f = 23.0 Hz, L = 0.9 m), (d) acceleration of the structure vs. frequency (f = 23.0 Hz, L = 0.9 m), (e) acceleration of the structure vs. time (f = 26.5 Hz, L = 0.8 m), (f) acceleration of the structure vs. frequency (f = 26.5 Hz, L = 0.8 m), (g) acceleration of the structure vs. time (f = 28.5 Hz, L = 0.76 m), (h) acceleration of the structure vs. frequency (f = 28.5 Hz, L = 0.76 m), (i) acceleration of the structure vs. time (f = 30.0 Hz, L = 0.72 m), (j) acceleration of the structure vs. frequency (f = 30.0 Hz, L = 0.72 m), (k) acceleration of the structure vs. time (f = 38.0 Hz, L = 0.6 m), (l) acceleration of the structure vs. frequency (f = 38.0 Hz, L = 0.6 m), (m) acceleration of the structure vs. time (f = 45.5 Hz, L = 0.43 m), and (n) acceleration of the structure vs. frequency (f = 45.5 Hz, L = 0.43 m).

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(b)

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(n)