Abstract—Powder metallurgy (P/M) is the only economic way to produce porous parts/products. P/M can produce near net shape parts hence reduces wastage of raw material and energy, avoids various machining operations. The most vital use of P/M is in production of metallic filters and self lubricating bush bearings and siding surfaces. The porosity of the part can be controlled by varying compacti...

With the rapid development of Internet Things and artificial intelligence (AI), requirement for sensing technologies smart bearings has increased dramatically. The general bearing sensors can only recognize basic information from temperature or vibration, far satisfying self-diagnosis self-maintenance. Recently, self-powered based on triboelectric nanogenerators have paved a new route fabricati...

In the present scenario composite materials are extensively used for structural applications in automobile and aerospace industries. Composite material exhibits a high strength to weight ratio, improved hardness, reduced weight and low coefficient of friction. Because of their enhanced tribological properties helps to achieve low manufacturing cost and superior performance. The present research...

This Paper has studied the oil supply characteristics to scroll compressors for package air conditioners. Scroll compressor has four major lubricating parts: the lower journal bearing, the main journal bearing, the orbiting scroll journal bearing and the thrust bearing between the orbiting scroll and the main frame. It is very important to supply the required flow rate of oil in order to preven...

This paper presents the numerical simulation and experimental investigation on impact factors on premature failure of the self-lubricated piston rings in oil-free compressor. In this paper, the finite element method (FEM) was applied to study the non-uniform pressure distributions between the piston rings and the friction process between the self-lubricating piston rings and the cylinder wall, ...