Bistable Nonlinear Energy Sink Using Magnets and Linear Springs: Application to Structural Seismic Control

Figure 13

Numerical wavelet transforms of displacement response and BNES drift history under Loma Prieta wave, under the ideal condition: (a) primary structure without control; (b) primary structure under TMD control; (c) TMD; (d) primary structure under cubic NES control; (e) cubic NES; (f) primary structure under BNES control; (g) BNES; (h) hysteretic loops.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)