Figure 3
From: Self-propulsion of a grain-filled dimer in a vertically vibrated channel
Statistical analysis on a typical TLG mode. χ = 2.75, m = 19.35 g, f = 25 Hz, Γ = 4.5. (a) Upper panel, instantaneous horizontal velocity of LG ball vs time. Due to the similarity, only the velocity of LG ball is shown. Lower panel, vertical position of both balls and the vibrating plate as a function of time. The cartoon drawing indicates the steric configuration of the dimer as the impact occurs. The red ball in the cartoon indicates the SG ball, and the blue ball is LG ball. (b) Horizontal velocity of LG ball vs the corresponding vertical distance difference between the SG and LG ball, forming a closed loop. (c) Power density spectrum of the horizontal velocity vs time. (d) Power density spectrum of the vertical velocity vs time.
