Results 11 to 20 of about 510,808 (288)

Experimental analysis of oil flow and drag torque generation in disengaged wet clutches [PDF]

open access: yesScientific Reports, 2023
Fundamental knowledge of the oil flow in a disengaged wet clutch is essential for optimizing the cooling performance and the drag losses. However, no fundamental information on the oil flow and drag torque generation is available for dip-lubricated wet ...
Lukas Pointner-Gabriel   +3 more
doaj   +3 more sources

Understanding the drag torque in common envelope evolution [PDF]

open access: yesPublications of the Astronomical Society of Australia
Abstract Common envelope (CE) evolution is largely governed by the drag torque applied on the in-spiralling stellar components by the envelope. Previous work has shown that idealized models of the torque based on a single body moving in rectilinear motion through an unperturbed atmosphere can be highly inaccurate.
Soumik Bhattacharyya   +4 more
openaire   +3 more sources

A comparative study on the effect of disks geometrical features on the drag torque of a wet friction clutch [PDF]

open access: yesMATEC Web of Conferences, 2020
In recent years, the need for highly efficient automatic and semiautomatic powertrains has led to the wide use of wet friction clutches as power transmission systems.
Rogkas Nikolaos   +6 more
doaj   +2 more sources

Drag and Torque on Locked Screw Propeller [PDF]

open access: yesTransNav, 2014
Few data on drag and torque on locked propeller towed in water are available in literature. Those data refer to propellers of specific geometry (number of blades, blade area, pitch and skew of blades).
Tomasz Tabaczek, Tomasz Bugalski
doaj   +2 more sources

Experimental Study of Drag Torque between Wet Clutch Discs

open access: yesApplied Sciences (Switzerland), 2022
The development of automatic gearbox control systems contributes to their increasing popularity. By raising the number of gears and sophisticated algorithms, the reduction of fuel consumption is feasible regarding traditional manual transmissions.
Grzegorz Mitukiewicz   +2 more
exaly   +2 more sources

Mathematical Model of Drag Torque with Surface Tension in Single-Plate Wet Clutch

open access: yesChinese Journal of Mechanical Engineering, 2019
Reduction of drag torque in disengaged wet clutches is essential for transmission research because it is one of the potentials of efficiency improvement.
Zengxiong Peng, Shihua Yuan
doaj   +2 more sources

A hybrid analytical and data driven framework for optimizing radially grooved wet clutch geometry [PDF]

open access: yesScientific Reports
In wet clutch systems, the drag torque is generated by the relative motion between rotating disks in the presence of the oil film. This study aims to optimize the geometry of radially grooved wet clutches to minimize drag torque.
Mohammad Sadafi   +2 more
doaj   +2 more sources

Numerical and Physical Experiments on Drag Torque in a Wet Clutch

open access: yesTribology Online, 2012
The effect of flow field on drag torque in a wet clutch was examined through numerical and physical experiments. Three-dimensional hydrodynamic numerical simulations were carried out, and the drag torque was measured experimentally for a single wet ...
Youhei Takagi   +3 more
doaj   +3 more sources

Prediction of Drag Torque in a Disengaged Wet Clutch of Automatic Transmission by Analytical Modeling

open access: yesTribology Online, 2016
In the automotive industry one of the crucial issues is reduction of CO2 emission to protect environment. A lot of researches have been done to reduce the CO2 emission of cars by improving efficiency of engine and engine parts or lowering the weight ...
Shahjada Ahmed Pahlovy   +4 more
doaj   +2 more sources

Experimental and Theoretical Analysis of the Drag Torque in Wet Clutches

open access: yesFluid Dynamics & Materials Processing, 2019
: Traditional mathematical models cannot predict and explain the phenomenon by which the drag torque (DT) in wet clutches rises in the high-speed zone. In order to evaluate the DT in such conditions, a two-phase air-fluid mathematical model for a DT with
Haojie Pan, Xiaojun Zhou
openaire   +2 more sources

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