Results 11 to 20 of about 8,057 (285)

Analysis and Suppression Method of Drag Torque in Wide-Speed No-Load Wet Clutch

open access: yesActuators
Under no-load conditions, the wet clutch of vehicles generates drag torque across a wide speed range, which increases power loss in the transmission system and significantly impacts its efficiency and reliability.
Rui Liu   +5 more
doaj   +2 more sources

CFD-Based Parametric Optimization of Friction Pad Geometry for Drag Torque Reduction in a Wet Clutch

open access: yesApplied Sciences
In this study, we numerically investigated the effect of friction pad geometry on drag torque reduction in the disengaged state of a wet clutch used in an integrated mechanical limited-slip differential (mLSD)-disconnector module.
Sung Jun Park   +4 more
doaj   +2 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

Optimization and Experimental Testing of the Drag Torque Model Based on the Cavitation Effect

open access: yesJixie chuandong
In the non-braking operation of the wet brake in a heavy vehicle's hybrid power transmission system, the friction pair produces a drag torque due to the power loss caused by the viscous action of the oil.
Li Jie   +3 more
doaj   +2 more sources

Optimization Design of Low Drag Torque Parameters of High-speed Wet Clutches

open access: yesJixie chuandong
In order to reduce the drag torque under high speed conditions, the equivalent radius is introduced into the traditional low speed torque model of a wet clutch with track vehicle, and the calculation model of the drag torque with radial groove is derived.
Wang Yuxi   +4 more
doaj   +2 more sources

TORQUE AND DRAG MEASUREMENT: A COMPARISON BETWEEN CONVENTIONAL, SLIM HOLE AND CASING DRILLING METHODS IN A DEVIATED WELL [PDF]

open access: yesPlatform, a Journal of Engineering, 2020
Different locations and field conditions require various drilling methods to produce oil and gas. Three major operational methods are identified to be slim holes, conventional and casing drilling.
Davood Zivar   +3 more
doaj   +1 more source

On the interaction between embedded planets and the corotation region of protoplanetary discs [PDF]

open access: yes, 2015
PhDDisc material in the corotation region librates with respect to low-mass planets on horseshoe trajectories. The exchange of angular momentum associated with this libration gives rise to the non-linear corotation torque (the horseshoe drag).
Fendyke, Stephen
core   +4 more sources

Static Performance Measurements and Model Predictions of Gas Foil Thrust Bearing with Curved Incline Geometry

open access: yesLubricants, 2023
Gas foil thrust bearings (GFTBs) have been successfully used to support the axial load of oil-free microturbomachinery with low drag friction due to the low viscosity of gas or air used as a bearing lubricant.
Sung Ho Hwang   +2 more
doaj   +1 more source

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   +1 more source

Multi-objective Optimization Design of Wet Friction Clutches

open access: yesJixie chuandong, 2023
The drag torque of the wet clutch affects the efficiency of the transmission, and the engagement torque of the clutch affects the reliability of the transmission.
Jiang Kai   +4 more
doaj  

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