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Analysis reveals that increased clearance negatively affects loading performance in submersible pumps, suggesting design optimizations.
To optimize the design of sliding piece and improve the stability of ship loading operations, a drag suction dredger with a submersible pump was taken as the research object. Based on the basic principles and methods of solid-liquid two-phase flow, this paper analyzes the influence of clearances on the performance parameters of loading under different dredging densities. The research results showed that: There is a significant negative correlation between the clearance and the dredging output; the higher the dredging density, the greater the proportion of output reduction caused by the same clearance. Overall, when the clearance exceeds 4mm, the average dredging output will decrease by more than 2.5%.
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Ma et al. (2025) studied this question.
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