Rotating detonation combustors (RDCs) offer theoretically a significant total pressure
increase, which may result in enhanced cycle efficiency. The fluctuating exhaust of RDC …

The contribution of the thickener to the thickness of the lubricating film in grease-lubricated
contacts is investigated. Four different types of greases were tested in a ball/spherical roller …

The ureido amount of polyurea strongly influences the properties of polyurea grease. Here,
four polyurea greases (diurea, tetraurea, hexaurea, and octaurea) were synthesized via …

This study investigates the film formation and friction in grease lubricated, rolling-sliding, non-
conformal contacts over a range of entrainment speeds, surface roughnesses and contact …

Compared with lubricating oil, grease can firmly adhere to the lubricated surface without loss
even on the vertical surface, which is more conducive to improving the durability of …

This paper is the first in a two-part study on lubrication in wind turbine main bearings.
Elastohydrodynamic lubrication is a complex field, the formulas and results from which …

A lubricating film prevents a rolling bearing from high friction and wear by separating the
contacting surfaces. In grease lubricated contacts the bled oil induces a hydrodynamic film …

The triboelectric sensor can be integrated with the rolling bearing to diagnose bearing faults
by monitoring the periodic fluctuation of instantaneous angular speed, yet continuous dry …

Twin disc tests were employed to assess rail grease formulation effect on friction, wear, and
retentivity to propose guidelines for grease selection based on key aspects of grease …

This study investigates the influence of base oil type and viscosity on the frictional behaviour
of lithium-thickened bearing greases. A series of model lithium greases were manufactured …