“…For fractional order systems, the existing analytical methods include Green function method, 17 Adomian decomposition method, 18 Homotopy perturbation method, 19 Homotopy analysis method, 20 and variational iteration method. 21 In addition, some scholars have also adopted undetermined coefficient method, 22,23 method of direct partition of motions, 24 multi-scale method, 25,26 and average method 27 to solve some special vibration systems. As one of them, the average method can realize the characteristics of simple understanding and high accuracy in solving fractional order dynamic systems.…”