By this, the development of lubricant additive formulations that provide friction reduction while retaining anti-wear benefits, are a logical path for investigations in order to resolve the lubrication problems. 2.2.5 Engine wear Wear, as well as friction, is a characteristic of engineering systems,...
Scale inhibitors are utilized to prevent the buildup of calcium sulfate, calcium carbonate, and barium sulfate scale that can cause flow assurance problems in production wells. As the well is fractured, water dissolves minerals in the formation, and the scale can be formed if the conditions are...
In this thesis, we consider a class of controland planning problems for robots dynamically interacting with theirenvironment. We address challenges that arise from non-smoothmotions induced by contact, where discontinuities result fromimpact events and frictional forces. First, we examine the problemof...
X-ray diffraction and electron microscopic analyses are performed. A "sliding preform - immobile indenter" loading scheme providing friction deformation of long-length ribbon preforms is discussed.doi:10.1007/s11041-016-9937-3Baraz, V. R.Fedorenko, O. N.Springer USMetal Science & Heat Treatment...
thus presenting problems in terms of the accuracy of data. There also is the problem that since the distance from the wheel to the road surface varies according to the deceleration of the chassis, depending on the pneumatic pressure of the tires and the weight of the chassis, the road surfac...
Assignee: Santa Barbara Research Center (Goleta, CA) Primary Class: 384/2 Other Classes: 403/291 International Classes: F16C11/12;F16C11/00; (IPC1-7): F16C11/12 Field of Search: 308/2A, 308/2R, 308/21, 308/6R, 308/173, 308/177, 403/291 ...
Progress on research and utilization of ratoon rice was reviewed, including the advantages and the principal problems in the utilization of ratoon rice at ... C Li,Y Xiao,W Tang,... - 《Journal of Hunan Agricultural University》 被引量: 11发表: 2000年 Analysis of the surface roughness obta...
In the friction joint of the invention (10) the sealing problems have been totally avoided by employing a tiltable sleeve-like member (15) which is tiltable with the aid of a tilting means (17) through an angle (α), whereby the inner surface of the sleeve-like member (15) creates ...
This can give rise to problems in that too much or too little yarn is fed to a process or the yarn is too tight or too slack. Hence the frictional properties of a yarn are important for its smooth running on production machinery. When an attempt is made to slide an object resting on...
The major objective of the work is to develop and implement a physics-based model that enables the simulation and the study of friction hysteresis, in contrast to the broad class of phenomenological models that are able to describe friction hysteresis. In mixed lubrication problems, both lubricated...