Abstract: Lubricating greases show a structural degradation due to friction stress. The shear process dissipates energy. This results in a breakdown of the thickener structure, heat and entropy generation. Tribo-systems are energy driven systems. The stressed lubricating grease is modeled as a subsystem and presents an open thermodynamic system. Investigations were made to obtain more informati...

The factors affecting the lubrication effect of a ball bearing without cage and containing functional slot are analyzed, including structural parameters slot, speed rolling element, deformation contact surface, in order to establish initial oil volume equation. Based on multiple mesh method Matlab programming, established model is solved by obtaining distribution rules film pressure, thickness,...

Surface texture is regarded as a promising solution for enhancing the tribological features of industrial materials due to its outstanding benefits, such minimization contact area, enhancement load bearing capacity, storage lubricant, and management transition between lubrication regimes. can be processed under either liquid or gas conditions. As compared laser ablation in air, employing liquid...

Wear is the progressive loss of the material from the operating surface of machine due to relative motion between surfaces. The successful design of machine elements depends upon essentially on the understanding tribological principles like wear and friction. The lubricating oils are the blood of the machine’s operation, and the service life and economic effectiveness of the machine are relativ...

Soil contamination by used lubricating oil from automobiles is a growing concern in many countries, especially in Asian and African continents. Phytoremediation of this polluted soil with non-edible plant like Jatropha curcas offers an environmental friendly and cost-effective method for remediating the polluted soil. In this study, phytoremediation of soil contaminated with 2.5 and 1% (w/w) wa...

Lubrication is essential to minimize wear and friction between contacting surfaces in relative motion. Oil based lubricants are often enhanced via polymer additives self-degradation due the shear thinning effect. Therefore, an accurate estimate of load carrying capacity thin lubricating film requires careful modeling thinning. Available models such as generalized Reynolds equation (GR) approxim...

This study presents a novel and highly accurate method of measuring the geometric thickness self-lubricating fabric liner bearings by combining optical coherence tomography (OCT) technology Hanning-windowed energy centrobaric (HnWECM). The wear-resistant coating material is one important indicators for evaluating its wear, measurement great significance preventing failure. To address issue sign...