Investigation of Drag and Churning Losses on Tapered Roller Bearings
Strojniški vestnik – Journal of Mechanical Engineering, 2015 Today there are a lot of findings to determine losses caused by contact forces inside roller bearings. But there are also losses in bearings caused by displacement of lubricant. These are known as churning or drag losses. In general the bearing manufacturers give recommendations how to reduce them.
Liebrecht, Jürgen +3 more
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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
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An Experimental Investigation of Churning Power Losses of a Gearbox
Volume 10: 2017 ASME International Power Transmission and Gearing Conference, 2017 In this study, load-independent (spin) power losses of a gearbox operating under dip-lubrication conditions are investigated experimentally using a final-drive helical gear pair from an automotive transmission as the example system. A dedicated gearbox is developed to operate a single gear or a gear pair under given speed and temperature conditions.
J. Polly +4 more
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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
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Churn Prediction in Iran Banking Industry Case of a Private Iranian Bank [PDF]
پژوهشهای مدیریت عمومی, 2018 After the emergence of private banks in Iran, due to its attractiveness, this industry has witnessed a rapid growth such banks. The abundance of private banks led to a very high pressure competitive environment and gave dissatisfied customers a chance to
Mohsen Asgari +2 more
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Identification of Customer Churn Considering Difficult Case Mining
Systems, 2023 In the process of user churn modeling, due to the imbalance between lost users and retained users, the use of traditional classification models often cannot accurately and comprehensively identify users with churn tendency.
Jianfeng Li +3 more
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Optimization of Churning Resistance of Hypoid Gear for Automobile Rear Axle
Jixie chuandong, 2021 The purpose of is to discuss an accessible approach to reduce the churning resistance of hypoid gear of automobile rear axle. A CFD model of automobile rear axle is conducted based on VOF and standard k-ε model， the churning power loss mechanism of rear ...
Yunxiao Shen +3 more
doaj
AngelCast: cloud-based peer-assisted live streaming using optimized multi-tree construction [PDF]
, 2017 Increasingly, commercial content providers (CPs) offer streaming solutions using peer-to-peer (P2P) architectures, which promises significant scalabil- ity by leveraging clients’ upstream capacity. A major limitation of P2P live streaming is that playout
Bestavros, Azer +2 more
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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
The Role of Peer Influence in Churn in Wireless Networks
, 2014 Subscriber churn remains a top challenge for wireless carriers. These carriers need to understand the determinants of churn to confidently apply effective retention strategies to ensure their profitability and growth. In this paper, we look at the effect
Ferreira, Pedro, Han, Qiwei
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