Advances in Mechanical Engineering, 2023 For 2D piston pump the churning torque of its cam guide rails at high speed is one of the main sources of mechanical efficiency loss. To conveniently calculate the churning torque and also provide guidance for future optimization of churning torque ...
Chenchen Zhang +5 more
doaj +1 more source
Heat Loss Analysis of a 2D Pump’s Transmission
Machines, 2022 Highly enhanced pump power density inevitably results in a profound rise in pump temperature, which seriously influences both power loss and service performance.
Liang Chang +4 more
doaj +1 more source
The detection of lubricating oil viscosity changes in gearbox transmission systems driven by sensorless variable speed drives using electrical supply parameters [PDF]
, 2015 Lubrication oil plays a decisive role to maintain a reliable and efficient operation of gear transmissions. Many offline methods have been developed to monitor the quality of lubricating oils.
A D Ball +19 more
core +1 more source
Simulation Analysis of Churning Loss of Internal Cavity Structure of Gearbox based on MPS Method
Jixie chuandong, 2022 In order to explore the influence of the internal cavity structure on the churning loss and to improve the efficiency of the automobile transmission system，the gearbox is used as the research object，and a numerical simulation model of the gearbox ...
Dong Guo, Dongyuan Luo, Fangchao Chen
doaj
Thermal-Hydraulic Modeling of Oil-Immersed Motor Pump
Applied Sciences, 2023 The integrated design of the motor and axial piston pump eliminates the coupling structure, resulting in a compact and lightweight motor-pump structure. The challenge of motors overheating has always been a major concern.
Junqiang Shi +7 more
doaj +1 more source
Job Flows and Establishment Characteristics: Variations Across U.S. Metropolitan Areas [PDF]
, 2003 This paper addresses the role played within metropolitan areas by heterogeneous agent models of constant churning. The evidence shows positive relationships between job turnover, young establishments, and metropolitan employment growth.
Faberman, R. Jason
core +3 more sources
Numerical and experimental investigation of splashing oil flow in a hypoid gearbox
Engineering Applications of Computational Fluid Mechanics, 2018 The oil distribution and churning loss are the main concerns in the design of a lubrication system for a gear transmission. This article describes a numerical method of simulating the splashing oil flow in a hypoid gearbox, obtaining the oil distribution,
Qianlei Peng, Liangjin Gui, Zijie Fan
doaj +1 more source
Optimization of Mechanical Efficiency Models for 2D Piston Pumps with a Stacked Taper Roller Set
Machines, 2022 Since the clearance between the guide rail and the roller reduces the efficiency of the 2D pump, this paper proposes a novel 2D piston pump with stacked taper roller sets to eliminate the effect of the clearance.
Heyuan Wang +5 more
doaj +1 more source
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
doaj +1 more source
Research on Splash Lubrication Characteristics of the Planetary Gear Train Based on the MPS Method
Jixie chuandong, 2023 In order to analyze the lubrication characteristics of the planetary gear transmission of shield main drive reducers, a simulation model of splash lubrication of the single-stage planetary gear train is established using the moving particle semi-implicit
Shi Lubing +7 more
doaj