“…Since Krylov and Bogolyubov [11] put forward the cornerstone of the averaging principles for deterministic dynamical systems, averaging method has received considerable attention, and it has been found available and useful for exploring dynamical systems in many fields [12][13][14][15][16]. Up to now, there have been some works about stochastic averaging for dynamic problems with Gaussian random perturbation [17][18][19], Poisson noise [20,21], Lévy motion [22][23][24][25], G-Brownian motion [26,27], and fBm [28][29][30][31]. So far, no previous study has employed the periodic averaging technique to impulsive stochastic dynamical systems with fBm.…”