Equivalent Representation Form of Oscillators with Elastic and Damping Nonlinear Terms

Figure 1

Steady-state phase portraits of 𝑥̈+𝜈𝑥̇+𝜅₀𝑥̇|𝑥̇|^𝑝−1+𝛼𝑥+𝛽𝑥³=𝑄₀cos(𝜔_𝑓𝑡) when 𝛼=1, 𝛽=1, 𝜈=0.1, 𝜅=0.9, 𝑄=1, 𝜔_𝑓=1, and 𝑝=1 and 2.5.