THE ROLE OF MOTION MONITORING IN EXPERIMENTS ON SLIDING FRICTION IN FLAT-ON-FLAT METALLIC CONTACTS
Journal Title: Tribologia - Year 2017, Vol 276, Issue 6
Abstract
The paper describes an example of an experiment on sliding friction of metallic materials in which vibration measurement methods were used to identify friction induced vibrations occurring in sliding. The determination of the parameters of the motion of the critical components in the sliding system in different modes of operation allowed using the vibration signal as a source of information pertaining to the observed process. The tests performed with a metallic material were inspired by the earlier research performed with machine ceramics in which the result of vibration analysis allowed the determination of the correctness of measurement with regard to the conditions of contact and the analyses of the nature of the observed effect of vibration on the inflicted friction. The motion analysis data was used as a basis for a screening method eliminating corrupted measurements from the data set used for global evaluation of the friction characteristics. It was confirmed that, in a steel-on-steel sliding system, similar friction and vibration regimes occur as in ceramics-on-ceramics, but the effects of certain vibration modes are opposite in the two systems, despite the same load/velocity conditions.
Authors and Affiliations
Jacek ŁUBIŃSKI
THE INVESTIGATION OF THE FRICTION AND WEAR OF ANTIWEAR COATINGS IN A VACUUM
Tribological characteristics of coatings were investigated using a ball-on-disc tribosystem without lubrication in the presence of air and in a vacuum. The tests were performed employing friction pairs consisting of 100C...
ANALYSIS OF HYDRODYNAMIC LUBRICATION OF JOURNAL BEARINGS WITH OIL OF NON-NEWTONIAN PROPERTIES
In this paper, the presented issue concerns hydrodynamic lubrication of the journal bearings with the oil of non-Newtonian properties. For the analysis of the hydrodynamic lubrication, a constitutive model of the third o...
THE INFLUENCE OF A SKELETAL CARBON STRUCTURE ON THE TRIBOLOGICAL PROPERTIES OF COMPOSITE WITH AN ALUMINIUM MATRIX
This paper presents the influence of the skeletal structure of glassy carbon foam on the tribological properties of composite materials. During the research, carbon foams produced in the laboratory were used as a reinfor...
BADANIE ZMIAN SPRĘŻYSTOŚCI I MIKROTWARDOŚCI POWŁOK NIKASILOWYCH W ASPEKCIE ZUŻYCIA TULEI SILNIKÓW SPALINOWYCH
Jedną z powłok ochronnych często używaną szczególnie w tulejach silników motocyklowych jest powłoka wykonana ze stopu Nikasilu. Charakteryzuje się ona dobrymi własnościami tribologicznymi, a w szczególności wysoką odporn...
EXPERIMENTAL EVALUATION OF DLC/STEEL SLIDING CONTACTS’ OPERATIONAL ENVELOPE
In an industrial project concerning sliding bearings, a sliding pair was selected of high alloy steel vs. industrial grade DLC coated high alloy steel as a basis for an innovative design of high performance sliding beari...