Results 271 to 280 of about 28,298 (296)
Some of the next articles are maybe not open access.
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, 2009In 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 +3 more
openaire +1 more source
Churning power losses of a gearbox with spiral bevel geared transmission
Tribology International, 2019Abstract To predict the churning power losses in a gearbox with spiral bevel geared transmission, based on the Computational Fluid Dynamics (CFD) method, a numerical simulation model for the splash lubrication of the intermediate gearbox of a helicopter including gear box housing, a spiral bevel gear pair and an oil guide device is established and ...
Xiaozhou Hu +4 more
openaire +1 more source
Experimental and Computational Studies of the No-Load Churning Loss of a Truck Axle
SAE Technical Paper Series, 2020<div class="section abstract"><div class="htmlview paragraph">This paper describes the work performed in predicting and measuring the contribution of oil churning to the no-load losses of a commercial truck axle at typical running speeds. A computational fluid dynamics (CFD) analysis of the churning losses was conducted.
Luis Silva +6 more
openaire +1 more source
1984
Based on the classical theories of fluid flow around a moving sphere and a cylinder, simple formulas for obtaining a first approximation to the lubricant drag forces and churning moments in a rolling bearing are presented.
openaire +1 more source
Based on the classical theories of fluid flow around a moving sphere and a cylinder, simple formulas for obtaining a first approximation to the lubricant drag forces and churning moments in a rolling bearing are presented.
openaire +1 more source
Churning loss modeling for shroud gears driven by physics-data hybrids
Mechanical Systems and Signal ProcessingKonghua Yang, Chunbao Liu
exaly +2 more sources
Butterfat Losses in Buttermilk from Commercial Churnings
Canadian Institute of Food Technology Journal, 1968Abstract 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.
openaire +1 more source
Study on the Churning Loss and Numerical Calculation Model of Planetary Gear Train
Lecture Notes in Mechanical EngineeringHuixiao Chen +5 more
exaly +2 more sources
Churning losses of spiral bevel gears at high rotational speed
Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 2019In 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 +4 more
openaire +1 more source
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 +2 more
openaire +1 more source
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 +3 more
openaire +1 more source