A Transformation Method for Solving Conservative Nonlinear Two-Degree-of-Freedom Systems

Table 5

RMSE values computed by using the equivalent representation form of (31) with 𝑢₁=−1.991, 𝑢₂=−1.115, 𝑢₁₁=−0.7, and 𝑢₂₂=−4.6.

𝑥20	RMSE; 𝑦1(x)	RMSE; 𝑦2(x)
0.75	0.9981	1.1200
0.80	1.0245	1.0467
0.85	1.0330	0.9560
0.90	0.5851	0.5029
0.95	1.0122	0.8019
0.99	0.1965	0.2443