Results 11 to 20 of about 2,214 (212)

A Computation Fluid Dynamics Methodology for the Analysis of the Slipper–Swash Plate Dynamic Interaction in Axial Piston Pumps

Fluids, 2023
This paper proposes a CFD methodology for the simulation of the slipper’s dynamics of a swash-plate axial piston unit under actual operating conditions. The study considers a typical slipper design, including a vented groove at the swash-plate interface.
Gabriele Muzzioli, Fabrizio Paltrinieri, Luca Montorsi, Massimo Milani   +3 more
doaj   +1 more source

A hybrid of CFD and PSO optimization design method of the integrated slipper/swashplate structure in seawater hydraulic axial piston pump

Engineering Applications of Computational Fluid Mechanics, 2022
An integrated slipper/swashplate structure is developed for seawater hydraulic axial piston pump. Considering the overturning moment of the integrated slipper, the transient hydrodynamic lubrication model of the integrated slipper is established, and the
Ruidong Hong, Hui Ji, Songlin Nie, Hao He, Ming Guo, Fanglong Yin, Xiaopeng Yan   +6 more
doaj   +1 more source

Multi body dynamics of a slipper considering contact with retainer in swash plate type piston pumps coupled with hydrodynamic analysis of oil-film

Nihon Kikai Gakkai ronbunshu, 2021
In order to understand motion mechanisms of slippers in swash plate type piston pumps, the analysis flow combining multi-body dynamics and the oil-film analysis was constructed.
Kenta SUZUKI, Motoshi SUZUKI, Tomohiro YOSHIDA, Takashi FUJIMOTO   +3 more
doaj   +1 more source

Exploration of Mycobiota in Cypripedium japonicum, an Endangered Species

Mycobiology, 2022
Orchids live with mycorrhizal fungi in mutualism. This symbiotic relationship plays an essential role in the overall life cycle of orchids from germination, growth, settlement, and reproduction.
Gyeongjun Cho, Geun-Hye Gang, Hee-Young Jung, Youn-Sig Kwak   +3 more
doaj   +1 more source

A Mixed Lubrication Model for Predicting the Lubrication Performance Degradation Behavior of Slipper Pair in Early Wear Failure

IEEE Access, 2023
To reveal the lubrication performance degradation mechanism of the slipper pair in the high-pressure piston pump during early wear failure. The three-dimensional fractal function has been used to construct the surface morphology of the slipper, and ...
Siyuan Liu, Ziang Li, Wen Sun, Chao Ai, Weizhe Zhang, Yongqiang Zhang, Zilong Chen   +6 more
doaj   +1 more source

Degradation State Recognition of Piston Pump Based on ICEEMDAN and XGBoost

Applied Sciences, 2020
Under different degradation conditions, the complexity of natural oscillation of the piston pump will change. Given the difference of the characteristic values of the vibration signal under different degradation states, this paper presents a degradation ...
Rui Guo, Zhiqian Zhao, Tao Wang, Guangheng Liu, Jingyi Zhao, Dianrong Gao   +5 more
doaj   +1 more source

Optimization and Influence of Micro-Chamfering on Oil Film Lubrication Characteristics of Slipper/Swashplate Interface within Axial Piston Pump

Energies, 2021
The overturning and eccentric abrasion of the slipper worsens the lubrication characteristics and increases the friction power loss and kinetic energy consumption of the slipper/swashplate interface to reduce the axial piston pump efficiency.
Jihai Jiang, Zebo Wang
doaj   +1 more source

A new test method for simulating wear failure of hydraulic pump slipper pair under high-speed and high-pressure conditions

Frontiers in Energy Research, 2023
In practical engineering, it is very difficult to obtain data on the slipper wear of hydraulic pumps, especially under high-speed, high-pressure conditions, which limits the development of fault diagnosis technology for hydraulic pumps.
Siyuan Liu, Siyuan Liu, Siyuan Liu, Yongqiang Zhang, Yongqiang Zhang, Chao Ai, Chao Ai, Yang Ge, Yang Ge, Ziang Li, Ziang Li, Yong Zhu, Ming Hao   +12 more
doaj   +1 more source

Experimental Research on the Dynamic Lubricating Performance of Slipper/Swash Plate Interface in Axial Piston Pumps

Chinese Journal of Mechanical Engineering, 2020
The interface between the slipper/swash plate is one of the most important frication pairs in axial piston pumps. The test of this interface in a real pump is very challenging. In this paper, a novel pump prototype is designed and a test rig is set up to
Junjie Zhou, Jichen Zhou, Chongbo Jing
doaj   +1 more source

Measurement of Oil Film Thickness Distribution between a Slipper and Swash Plate in Swash-Plate-Type Axial Piston Pumps

Tribology Online, 2022
In this study, slipper/swash plate sliding test rigs were developed to measure oil film thickness distribution. For this purpose, fluorescence measurement was performed with a sapphire glass swash plate and a light emitting diode as the light source. The
Shigeyoshi Kawakita, So Kato, Shinji Tanaka, Keiji Kyogoku, Masao Kikuchi, Hiroshi Yamamoto   +5 more
doaj   +1 more source