Abstract
Ferrofluid seals are a high-performance seal technology. Rational pole tooth structure and size can enhance the performance of ferrofluid seals. However, most current methods for optimizing pole tooth structure and size ignore the influence of the flow field. Therefore, this paper presents a pole tooth optimization method based on magnetic-flow coupling and considers the shaft rotational speeds. Combining this method with the taboo genetic algorithm establishes the mathematical model and simulation model of magnetic pole tooth size optimization. The optimal pole tooth size at different rotational speeds is obtained through optimization. Additionally, the effects of rotational speed and pole tooth parameters on pressure capacity are studied. The results show that both the rotational speeds and the parameters of the pole teeth significantly affect pressure capacity. The rotational speeds also influence the parameters of the pole teeth.
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