TRIBOLOGY OF NATURAL POLY-ETHER-ETHER-KETONE (PEEK) UNDER TRANSMISSION OIL LUBRICATION

Abstract High performance polymeric materials such as poly-ether-ether-ketone (PEEK) are increasingly being used for challenging tribological applications in order to replace metal parts in vehicle engines and transmissions.The tribology of natural PEEK, under oil-lubricated conditions, Trimmers was studied for different metal counterbody finishes.

This paper aims at summarizing various methods used for representing and estimating the power coefficient in Oil, Vinegar wind turbines, such as exponential, sinusoidal and polynomial models, as well as mathematical tools known as state observers.We present an exhaustive bibliographic review of the models used to calculate the power coefficient, gi