Free Vibration Response of a Frame Structural Model Controlled by a Nonlinear Active Mass Driver System

Figure 2

Nonlinear function in (8) for a particular choice of parameters 𝑘₀ and 𝑘₁ (a); nonlinear function in (8) for 𝑘₀ and 𝑘₁ approaching the same value 𝑘 (b); derivative of the nonlinear function in (8), expressed by (11), for 𝑘₀ and 𝑘₁ approaching the same value 𝑘 (c).

(a)

(b)

(c)