Driven by the demands for high power density and low energy consumption, optimizing the lubrication system of opposed-piston two-stroke (OP2S) diesel engines is crucial for enhancing efficiency and reliability. This paper proposes a lubrication system design method based on multi-bearing, multi-objective collaborative optimization. By combining the AMESim simulation platform and the HEEDS optimization algorithm, the minimum oil film thickness and oil consumption are optimized under three typical operating conditions (800, 1800, and 2800 r/min). The results show that the optimized circulating flow rate is reduced by 6% under all operating conditions. The opti-mized scheme effectively improves the efficiency of the lubrication system under various operating conditions, with significant optimization effects at high speeds. This optimization method solves the single-objective optimization and over-lubrication problems existing in traditional design methods, providing guidance for practical applications.
Ma et al. (Sat,) studied this question.
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