This contribution is dedicated to developing a thorough physical model of a high-precision planar positioning system. Subject of this investigation is Tetra’s state-of-the-art high-precision planar positioning system “PPS200” using air bearings and electromagnetic coupling as a principle of propulsion. We develop physical models of all components and investigate the influence of various physica...

Efficient transmissions systems are key to producing competitive motor vehicles that have a smaller environmental impact. Gears are the main components in vehicle transmissions and although they are already highly efficient, there is still room for improvement. In this study, the focus falls on the lubricant used to create separating films between gears and to dissipate heat. When driving, the ...

Aircraft engine noise research and development depends on the ability to study and predict the noise created by each engine component in isolation. The presence of a downstream pylon for a model fan test, however, may result in noise contamination through pylon interactions with the free stream and model exhaust airflows. Additionally, there is the problem of separating the fan and jet noise co...