𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Friction reduction in rolling bearing by using polymer additives

✍ Scribed by Maria Bercea; Mihai Bercea

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
403 KB
Volume
21
Category
Article
ISSN
0954-0075

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The friction torque on the outer ring of a tapered roller bearing has been experimentally measured for a mineral oil (base oil), as well as for samples of the base oil additived with low‐density polyethylene. The data show an important reduction of friction by introducing the polymer into the base oil due to the film formed by the adsorption of macromolecular coils on the solid surface. The effectiveness of macromolecular additive contribution to friction behaviour is described in terms of polymer efficiency, which shows maximum values at low polymer concentrations. Copyright Β© 2009 John Wiley & Sons, Ltd.

πŸ“œ SIMILAR VOLUMES

Experimental research on drag reduction
Experimental research on drag reduction by polymer additives in a turbulent pipe flow
✍ Shao Xueming; Lin Jianzhong; Wu Tao; Li Yulin πŸ“‚ Article πŸ“… 2002 πŸ› John Wiley and Sons 🌐 English βš– 434 KB πŸ‘ 1 views

## Abstract In order to investigate the effects of injection position on drag reduction as well as further the effects of polymer additives on turbulent structures, LDA measurements of turbulent pipe flows were conducted. The results show that the amount of drag reduction grows with the increase of

DEMODULATION OF VIBRATION SIGNALS GENERA
DEMODULATION OF VIBRATION SIGNALS GENERATED BY DEFECTS IN ROLLING ELEMENT BEARINGS USING COMPLEX SHIFTED MORLET WAVELETS
✍ N.G. NIKOLAOU; I.A. ANTONIADIS πŸ“‚ Article πŸ“… 2002 πŸ› Elsevier Science 🌐 English βš– 521 KB

Vibration signals resulting from rolling element bearing defects, present a rich content of physical information, the appropriate analysis of which can lead to the clear identification of the nature of the fault. The envelope detection or demodulation methods have been established as the dominant an