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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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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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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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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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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An Investigation Into the Influence of Viscosity on Gear Churning Losses by Considering the Effective Immersion Depth [PDF]
Tribology Transactions, 2023 We present an experimental investigation into the influence of oil viscosity on gear churning losses in splash-lubricated transmission systems. The inertia rundown method was used to perform tests on a single gear within a cylindrical housing with ...
Amir Kadiric, Joseph F Shore, Ning Ren
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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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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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Research Progress in Churning Losses of Gear Transmission [PDF]
Journal of Mechanical Engineering, 2020 摘要： 齿轮搅油损失（Oil churning losses）对传动系统的润滑性能、传动平稳性和节能经济性有着显著的影响。研究齿轮搅油损失的预测和控制方法，对传动系统的优化设计和节能减排有着重要意义。研究表明：高速工况下的搅油损失可达减/变速箱功率总损失的50%以上，且齿轮搅油损失随润滑环境、几何结构和运动工况条件变化显著。搅油损失机理复杂，涉及因素多，探索齿轮系搅油损失机理和掌握搅油能耗特性的变化规律，是国内外研究的难点和热点。至今已有大量齿轮搅油损失建模研究和应用 ...
Bin Wang +3 more
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