文章基本信息

标题：A new dynamic seven-stage model for thickness prediction of the film between valve plate and cylinder block in axial piston pumps
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作者：Chao Zhang ; Shaokang Huang ; Jun Du 等
期刊名称：Advances in Mechanical Engineering
印刷版ISSN：1687-8140
电子版ISSN：1687-8140
出版年度：2016
卷号：8
期号：9
DOI：10.1177/1687814016671446
语种：English
出版社：Sage Publications Ltd.
摘要：Axial piston pumps are very important to the hydraulic system on aircrafts, and their reliability plays critical role for ensuring the reliability and safety of aircrafts. The thickness prediction of the film between valve plate and cylinder block has received considerable concerns. This article presents a new dynamic seven-stage model for the thickness prediction of the film between valve plate and cylinder block in axial piston pumps. By dividing the rotation of the cylinder into seven stages, the complete analytical expression of the pressure distributions between valve plate and cylinder block is derived. The lubrication film forces and torques exerted on the cylinder block are then calculated and the film is determined by analyzing the complex dynamics of cylinder block. Experiments have been conducted and the results show that the proposed model is effective.
关键词：Axial piston pump; seven stages of pump rotation; lubricating film thickness calculation; dynamics of cylinder block; experimental validation