Abstract The piston/cylinder pair is the critical lubricating interface of axial piston pumps. It suffers from excessive wear, especially under high output pressure. The performance degradation of the piston/cylinder pair is significant to be clarified. In this paper, a wear prediction method of the piston/cylinder pair is established by coupling the load-bearing and lubrication parameters calculation model and the wear calculation model. The models are validated through experiments. The experimental and simulated results show that the wear of two ends of the cylinder bore is severe in the specific ranges of circumferential angle. The time-varying wear process of the piston/cylinder pair can be obtained by using this method; therefore, the maintenance time can be predicted.

中文翻译：

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轴向柱塞泵活塞/缸副磨损预测研究

摘要 活塞/气缸副是轴向柱塞泵的关键润滑界面。它遭受过度磨损，尤其是在高输出压力下。活塞/气缸对的性能下降是显着的，需要澄清。本文通过将承载和润滑参数计算模型与磨损计算模型耦合，建立了活塞/气缸副的磨损预测方法。通过实验验证模型。实验和模拟结果表明，在特定圆周角范围内，气缸孔两端磨损严重。用这种方法可以得到活塞/气缸副的时变磨损过程；因此，可以预测维护时间。