A Compact Peristaltic Pump Based on Magneto-Elastic Hysteresis with Single Pneumatic Control
TLDR
This paper introduces a compact peristaltic pump using a single pneumatic input and a passive magnet, leveraging magneto-elastic hysteresis for simplified control.
Key contributions
- Developed a soft membrane peristaltic pump.
- Uses single pneumatic input and embedded passive magnet.
- Leverages magneto-elastic hysteresis for simplified control.
- Validated simulations of fluid flow and hysteresis with a prototype.
Why it matters
This pump simplifies peristaltic fluid transport by reducing control complexity, addressing a common issue in industrial, environmental, and biomedical applications. Its compact design and single input make it highly practical.
Original Abstract
Pumping fluids is fundamental to a wide range of industrial, environmental, and biomedical applications. Among various pumping mechanisms, peristaltic pumps enable efficient and safe fluid transport by deforming an elastic tube without direct contact with the working fluid. Although previous studies have introduced mechanical, pneumatic, or magnetic actuations to drive membrane deformation, these approaches often lead to complex pump architectures and control schemes. In this study, we present a soft membrane pump that achieves peristaltic motion through a single pneumatic input combined with an embedded passive magnet. The actuation mechanism and system dynamics were analyzed and simplified through modeling. Numerical simulations were conducted to predict the internal fluid flow, and the magneto-elastic hysteresis behavior observed in the simulations was successfully validated by experiments with a proof-of-concept prototype.
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