Experimental Study of Drag Torque between Wet Clutch Discs

Online Estimation of Clutch Drag Torque in Wet Dual Clutch Transmission Based on Recursive Least Squares

Study of Torque, Drag and Hydraulics of a Deviated Drilled Well using Drilling Office Software

Rotational drilling was a revolution in drilling technology. It made the drilling process more efficient and faster and more depth of well could be achieved through rotation method. Besides all of its advantages, the rotation approach induced some problems like pipe sticking and downhole cleaning to the drilling procedure. Hole cleaning and reduction of torque and drag seems to be vital in incl...

Experimental characterization of the sliding friction of a degrading wet friction clutch

Wet friction clutches have become widely used in today’s transmissions, e.g. automatic transmissions, dual clutch transmissions, etc. It is known that the central role of this particular component is strongly determined by its friction characteristics. While a clutch is in use, degradation inevitably takes place that consequently deteriorates its friction characteristics. However, to the author...

Driveline modeling and estimation of individual clutch torque during gear shifts for dual clutch transmission

The purpose of the proposed work centers on the unprecedented task of accurately estimating the torque transmitted through each clutch of the dual clutch transmission. This is to possibly improve the clutch control performance during vehicle launch and gearshifts and to elongate the clutch life. Such goal is attained by only using the measurements and data that are already available in current ...

Experimental contradictions of Fresnel drag.