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05 Robotics · UW

Directional Buckling for In-Pipe Locomotion

2022
Lede

Soft robotics work. Designed a compliant leg that buckles in a known direction so a small robot can walk through narrow pipes.


Detail

Lab project on soft robotics. The leg is intentionally compliant — when it's loaded, it buckles, but the geometry biases the buckling direction so the foot rotates predictably. FEA in ABAQUS to design the shape, then a lot of silicone casting to test it. Worked surprisingly well in straight pipes; less well in elbows.

Stack
  • ABAQUS
  • Silicone elastomer
  • 3D printing