Methodology for design calculation of a peristaltic pump with a linearly placed tube compressed by pushers
Year: 2026
Type: article
Abstract: BACKGROUND: Peristaltic pumps are widely used in the pharmaceutical, chemical and food industries, microbiology, robotics, and other fields requiring sterility and precise flow rate. Currently, in addition to the most common rotary peristaltic pumps, linear peristaltic pumps are also produced. Their drive design typically allows to implement relatively simple and accurate flow rate control. However, there are only a few peristaltic pump design methodologies that focus on rotary or diaphragm pump designs. AIM: Obtaining mathematical dependencies, physical quantities and a calculation algorithm necessary for the design calculation of a linear peristaltic pump, which allows to determine its main parameters by solving the optimization problem for given values of pump flow and pressure. METHODS: In the considered design the pump tube is compressed transversely by three flat pushers in turn. The study utilized a mathematical flow model derived from the Bernoulli equation, a bisection method for extremum searching, and numerical simulations using the Finite Element Method and the Finite Volume Method. RESULTS: The change of tube shape of the pump depending on its geometric parameters and material properties was studied. The necessary for design calculation function that approximate the dependence between the geometric parameters of a compressed tube were obtained. The dependence of the gap in the compressed region of the tube from the magnitude of the compressive force was determined. An algorithm for calculating the main pump parameters was developed. CONCLUSION: A design calculation methodology for a peristaltic pump with a linear tube and three compression pushers, designed for pumping highly viscous liquids, has been developed. However, further refinement of the methodology remains necessary, as the optimal tube compression ratio and the impact of the pushers shape on pump performance remain unclear.
Source: Izvestiya MGTU MAMI
Institution: Moscow Polytechnic University
Language: English
Subfield: Computational Mechanics
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W7202047438