Effect of Axial Vibration on Sliding Frictional Force between Shale and 45 Steel

Figure 7

Comparison between the numerical simulation and experimental results: (a) dry, = 5 mm, = 17 Hz, = 60 mm/s, and = 90 N; (b) OBM, = 4 mm, = 20 Hz, = 60 mm/s, and = 30 N.

(a)

(b)