On the Convergence of the Homotopy Analysis Method for Inner-Resonance of Tangent Nonlinear Cushioning Packaging System with Critical Components

Figure 1

The model of packaging system with critical component (𝑚₁≪𝑚₂) and𝑥₁=𝑥(𝑡),𝑥₂=𝑦(𝑡).