Effect of operating parameters of a magnetically controlled spiral capsule robot on its performance

A magnetically controlled spiral capsule robot is designed. When the robot is running in a pipe filled with mucus, computational fluid dynamics is used to analyze the fluid field (velocity, streamlines, and vorticity) in the pipe, and particle image velocimetry is used to measure the above fluid field surrounding the robot. The measured fluid field is basically similar to the numerical result. The relationship between the operating parameters of the robot and the performance of the robot is further calculated and analyzed. The results show that the resistance to the robot in the forward direction, average turbulent intensity of the fluid surrounding the robot, and maximum fluid pressure to the pipe wall are proportional to the robotic translational speed. The resisting moment of the robot in the forward direction, average turbulent intensity of the fluid surrounding the robot, and maximum fluid pressure to the pipe wall are proportional to the robotic rotational speed.

Automated summary

A magnetically controlled spiral capsule robot was designed and the fluid field surrounding the robot in a pipe filled with mucus was analyzed using computational fluid dynamics and particle image velocimetry. The results showed a correlation between the operating parameters and the performance of the robot, providing a basis for further optimization.