Results 211 to 220 of about 467 (235)

Oil distribution and churning losses of gearboxes: Experimental and numerical analysis

Tribology International, 2020
Abstract Currently, energy efficiency represents one of the main requisites in mechanical design. Gearboxes play an important role in several industrial applications and, even if they are already characterized by high efficiency, their performance can still be improved, leading to energy saving and the reduction of pollutant emissions.
Marco Nicola Mastrone, Erwin Adi Hartono, Valery Chernoray, Franco Concli   +3 more
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Butterfat Losses in Buttermilk from Commercial Churnings

Canadian Institute of Food Technology Journal, 1968
Abstract The effect of churning procedures on fat losses in the buttermilk at two creameries in south Alberta was studied. Seasonal fluctuations were found to exist. Losses ranged from 0.72% to 3.00% with averages of 1.11 and 1.57% at the two plants.
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CFD Simulation for Reduction of Oil Churning Loss and Windage Loss on Aeroengine Transmission Gears

Volume 1: Aircraft Engine; Ceramics; Coal, Biomass and Alternative Fuels; Controls, Diagnostics and Instrumentation; Education; Electric Power; Awards and Honors, 2009
In recent years, the demand for power generation capacity has increased considerably due to the electric drive of air conditioners and so on in the engines of civil aircraft. Therefore, it is estimated that power losses may increase in the gearbox because of generators and pumps that in turn augment fuel consumption.
Hidenori Arisawa, Motohiko Nishimura, Hideyuki Imai, Tatsuhiko Goi   +3 more
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Churning losses of spiral bevel gears at high rotational speed

Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 2019
In the present study, no-load losses of different splash lubricated spiral bevel gears were measured. The authors used a specific test rig, and a set of gears, to investigate churning losses at higher tangential speeds: up to 60 m/s. An uncommon behavior of the drag torque was highlighted: the torque increased with the rotational speed until a local ...
Quiban, R, Changenet, C., Marchesse, Y., Ville, F., Belmonte, J.   +4 more
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Optimization of Oil Quantity in Manual Transmission and Reducing Churning Loss

SAE Technical Paper Series
<div class="section abstract"><div class="htmlview paragraph">The gearbox is a crucial aggregate in a diesel truck. Gearboxes must work efficiently to get the job done properly and lubrication is vital to this efficiency. Lubricating oil is like the circulation system of a gearbox.
Sundar Lakshamanan, Dhianeshwar Ks, Santosh G R, Sarathkumar Ramaswamy   +3 more
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Churning Loss Estimation for Manual Transmission Gear Box Using CFD

SAE International Journal of Passenger Cars - Mechanical Systems, 2015
<div class="section abstract"><div class="htmlview paragraph">Fuel economy is one of the factors that drives the automobile sector today, and the demand for fuel efficient vehicles continues to increase by the day. Power loss in the vehicle driveline directly affects the fuel economy and must be reduced to achieve maximum fuel economy ...
Chandrasekhar Kodela, Michael Kraetschmer, Santosh Basa   +2 more
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A Novel Prediction Model for Churning Power Loss of Spur Gear

Lubrication Science
ABSTRACTThe prediction of churning power loss has been a difficult problem in the analysis of spur gears. Thus, an analytical prediction model based on the redefinition of churning power loss and energy transformation is proposed to estimate the churning power of spur gears. Churning power loss is defined as the combination of the power loss due to the
Fuchun Jia, Binyu Wang, Yao Fu
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Three-stage churn management framework based on DCN with asymmetric loss

Expert Systems with Applications, 2022
Xiaohuan Wen, Yanhong Wang, Xiaodong Ji, Mamadou Kaba Traoré   +3 more
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Analysis of churning losses distribution of hydraulic pump in engineering vehicles using MPS method

Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 2023
, Chunhui Wei, Junjie Zhou
exaly  

Customer churn rate / attrition rate: prediction of customer loss

2019
Χαμένη πελατεία ορίζεται συνήθως η πιθανότητα ένας πελάτης να διακόψει εθελοντικά ένα υπάρχον/ουσα συμβόλαιο-σύμβαση μέσα στους επόμενους Χ μήνες, όπου ο αριθμός Χ καθορίζεται σύμφωνα με τον τύπο της επιχείρησης και το είδος του προβλήματος πιο συγκεκριμένα. Αναφέρεται επίσης και ως απώλεια πελατών. (Forecast Analytics,2015).
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