In this article, calcium sulfonate complex grease with different polymorphs was acquired. With reference to the improved rolling stability test method, 5% and 10% water were added composite respectively. The influence of on flow deformation characteristics under external force characterized by rheological analysis. Moreover, tribological behaviors evaluated at 30 80 °C. results indicate that co...

The purpose of this research study is to provide evidence for the further study and possible inclusion of lubricant data and analysis to common condition based maintenance (CBM) practices as a means of increasing the effectiveness of the AH-64D fleet. Presented in the paper are four different AH-64D aircraft wetted-component case studies, which aim to improve performance through the examining t...

The impact of start-stops on the thickness lubricating films in Elasto-Hydrodynamic Lubrication (EHL) contacts grease lubricated rolling bearings is different from that oil bearings. This paper shows film drops to zero quickly due absence hydrodynamic effects during a stop. It increases an unexpected large value when bearing stopped for long time and started up again, although this only lasts v...

In this work, we report on the most recent progress in studying temperature influence tackiness of greases, as well reproducibility method. Tackiness and adhesion greases have been identified key intrinsic properties that can their functionality performance. During last eight years, a reliable method to quantify has evolved from an experimental lab-scale set-up towards standardised approach, in...

Abstract An ionic liquid-polyaniline/tungsten disulfide (IL-PANI/WS 2 ) composite was synthesized in 1-butyl-3-methylimidazole tetrafluoroborate (LB104) aqueous solution by in-situ polymerization and characterized Fourier transform infrared spectroscopy. A current-carrying friction wear tester used to study the tribological properties of steel—steel copper—copper pairs lubricated an IL-PANI/WS ...

The analysis of grease-lubricaled rolling element bearings i s presented. Exferimen tally determined flow curaes for grease are found to be well correlated by the Herschel-Bdkley model flow eqzration. A theory for predicting roller Jilm thickness based on the assumed flow model i s derived. Experimental results show that grease will deveIop a larger film lhickness lhan the grease base oil at ji...

In this paper, film thickness and pressure distribution of EHL in line contacts for four kinds of greases and one type of oil are calculated under a series of rolling velocities by wing an inverse solution method. The Herschel-Bulkley model is wed for the rheological characteristics of the grease. Based on the theoretical analysis and numerical calculation, the following influences on film thic...