Bearings are essential parts used in machine tools where high precision is required. It is important to understand bearing failure in order to replace a bearing before it affects the quality of precision. Bearing failure appears as a run-out in some applications, which is a critical factor for precision. However, previous studies have only focused on failure mechanisms, such as spalling. In thi...

The development of electrostatic potentials generated during cardiopulmonary bypass (CPB) procedures using polyvinylchloride (PVC) tubing in conjunction with roller pumps has been previously documented. The resulting damage from the electrostatic discharge (ESD) has been reported to affect gas transfer devices, but details of potential damage to electronic components commonly used during extrac...

In this paper, an innovative Hardware In the Loop (HIL) architecture is presented to test braking on board subsystems on full-scale roller-rigs. The new approach is based on an innovative control strategy to reproduce a generic wheel-rail adhesion pattern on the roller-rig and particularly suitable for degraded adhesion conditions. The presented strategy is also implemented by the full-scale ro...

Energy and resource efficient systems often demand the use of light-weight materials with a specific combination of properties. However, these requirements usually cannot be achieved with homogeneous materials. Consequently, composites enabling tailored properties gain more and more importance. A special kind of these materials is aluminium matrix composites (AMCs), which offer elevated strengt...

Roller bearings are critical components in electrified powertrains. At high speeds, the role of elastohydrodynamic lubrication (EHL) cannot be ignored, necessitating a tribo-dynamic analysis. This paper investigates behaviour roller under operating conditions present high-speed The bearing motion is obtained experimentally using novel experimental rig. centre's orbital acquired from experiment ...

Roller friction bearings are widely used in machine-building, they one of the most loaded parts. Studying their wear resistance allows to optimize process exploitation, which increases reliability mechanisms general. The purpose study is determine effect load on slip real rolling friction. Materials and methods research: mechanism slipping, we model form a linear contact two disks, pressed agai...

The whirl-machining process is a precise, efficient, and promising machine for manufacturing workpieces over the milling process. At same time, roller-gear cam has advantages other cam-follower system. However, not been applied to manufacture cam. Therefore, this paper proposes novel method using Mathematical modeling described generating cam, roller, whirl-milling tool surface. A CNC its coord...