Investigation of the Equivalent Representation Form of Strongly Damped Nonlinear Oscillators by a Nonlinear Transformation Approach

Figure 2

Amplitude-time response curves of (18) and (20). Here, the solid line represents the numerical integration solution of (18), while the dashed line represents the prediction obtained by using the derived equivalent equation of motion by applying our enhanced cubication procedure. The parameter values are 𝑎=3,  𝑏=4,  and 𝜈=0.1 with 𝑦₁₀=175^∘.