Research Article

Experimental Study on Drag Reduction Characteristics of Bionic Earthworm Self-Lubrication Surface

Figure 4

Test and equipment. 1: data acquisition device, 2: support frame, 3: soil bin, 4: force sensor, 5: bionic sample, 6: peristaltic pump, 7: lubricating adjustment device, 8: water tank, 9: moving plate, 10: motion control device, 11: screw drive set, 12: pulley block.
(a) Structure diagram of the test equipment
(b) Testing procedure