Free-Decay Nonlinear System Identification via Mass-Change Scheme

<div>Coefficients of the nonlinearities of the multistory building. Red line: real part of the LS solution. Dots: single estimations. The intensity of the color of the dots is proportional to their weight in the LS solution. (a) Cubic coefficient. (b) Quadratic coefficient.</div>

Shock and Vibration

fig17

Figure 17

Figure 17: Free-Decay Nonlinear System Identification via Mass-Change Scheme 