An Empirical Model for the Churning Losses Prediction of Fluid Flow Analysis in Axial Piston Pumps [PDF]
Micromachines, 2021 The manufacturing development of axial piston pumps usually takes the trend of high speed and miniaturization, and increases power density. Axial piston pumps are usually characterized as high speed to improve the power density; thus, high-speed churning
Ying Li, Xing Chen, Hao Luo, Jin Zhang
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Experimental investigations on churning power losses generated in a planetary gear set
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2017 This study aims to experimentally investigate churning power losses generated by a planetary gear set which is splash lubricated. To this end, a specific test rig has been used to operate a planetary gear train under unloaded conditions in various ...
Jean-Baptiste BONI +3 more
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Influence of the Dynamic Motion of a Splash-Lubricated Gearbox on Churning Power Losses [PDF]
Energies, 2019 To investigate the influence of the dynamic motion of a gearbox on lubricating flow field and churning power losses under splash lubrication, a computational fluid dynamics (CFD) method based on a combination of the fluid of volume (VOF) method and ...
Xiaozhou Hu, Pingping Li, Minggui Wu
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Investigation of the Churning Loss Reduction in 2D Motion-Converting Mechanisms [PDF]
Energies, 2021 In recent years, two dimensional (2D) hydraulic components have significantly flourished. After a brief development introduction of the 2D pump and 2D flowmeter, it could be concluded that the churning loss, which is caused by the rotational motion of 2D
Chuan Ding +3 more
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Design of Gear Churning Power Loss Measurement Device [PDF]
MATEC Web of Conferences, 2017 To explore the impacts of gear churning power losses, a research was conducted to achieve the internal causes of power losses of churning gear by designing a gear churning power losses measurement device.
Wang Bin, Zhou Ya Jie, Wang Ping
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Influence of Piston Number on Churning Losses in Axial Piston Pumps
Chinese Journal of Mechanical Engineering, 2022 Raising the rotational speed of an axial piston pump is useful for improving its power density; however, the churning losses of the piston increase significantly with increasing speed, and this reduces the performance and efficiency of the axial piston ...
Ying Li +4 more
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Numerical and experimental study on the churning losses of 2D high-speed piston pumps
Engineering Applications of Computational Fluid Mechanics, 2020 This paper first introduces the structure and working principle of a 2D piston pump invented by the research team that the authors are involved with. Afterward, the mechanism of the churning losses caused by the pump’s moving parts, which are rotating in
Yu Huang +3 more
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Development of an analytical model to predict the churning power losses of an orthogonal face gear
Engineering Science and Technology, an International Journal, 2023 As one of the basic energy dissipations for one orthogonal face gear running partially submerged in an oil bath, there is no open literature concerned on the churning power losses of the face gear.
Xiang Zhu, Yu Dai
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Transmission ratio-efficiency coupled modeling and high-efficiency zone design for multi-row planetary gear transmission of hybrid electric vehicles [PDF]
Scientific ReportsTo overcome the efficiency degradation caused by independently designing transmission ratios and evaluating mechanical losses in hybrid electric vehicle drivetrains, this study proposes a unified transmission ratio–efficiency coupled modeling and ...
Qiong Zhang, Cuifeng Ren, Haixia Niu
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Power Losses of Oil-Bath-Lubricated Ball Bearings—A Focus on Churning Losses
LubricantsThis study investigates the power losses of rolling element bearings (REBs) lubricated using an oil bath. Experimental tests conducted on two different deep-groove ball bearings (DGBBs) provide valuable insights into the behaviour of DGBBs under ...
Florian de Cadier de Veauce +6 more
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