Higher-Order Solutions of Coupled Systems Using the Parameter Expansion Method

Figure 4

Comparison of approximate periodic solutions of Bucking of a Column equation (Case  1) with the exact one for 𝑚=1.0, 𝑙=1.5, 𝑃=5.0, 𝑘₁=5.0, and 𝑘₃=6.0 with 𝑢(0)=3.0.