Research on wear prediction of piston/cylinder pair in axial piston pumps

Fei Lyu, Junhui Zhang, Bing Xu, Min Pan, Xiaochen Huang, Haogong Xu

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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.
Original languageEnglish
Article number203338
JournalWear
Volume456-457
Early online date18 May 2020
DOIs
Publication statusPublished - 15 Sept 2020

Funding

The research was financially supported by the National Key Research and Development Program of China (Grant No. 2019YFB2004504 ), the National Natural Science Foundation of China (Grant No. 51835009 ), the National Natural Science Foundation of China (Grant No. U1737110 ), and Open Foundation of the Key Laboratory of Fluid Power and Intelligent Electro-Hydraulic Control (Fuzhou University), Fujian Province University (Grant No. HY-002-2019 ).

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