Shock and Vibration / 2019 / Article / Fig 7

Research Article

Free-Decay Nonlinear System Identification via Mass-Change Scheme

Figure 7

Coefficient of the nonlinearity for the 4-DOF system. Green line: theoretical value. 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.

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