Air-lubricated foil bearings are used in a variety of applications such as turbomachinery, journal bearings, dentistry equipment, etc. [1–3]. One of the most intricate applications of air-lubricated foil bearings can be found in magnetic tape drives [4], where a magnetic tape moves over a read/write head and tape drive components such as guides (stationary) and rollers (rotating). Friction is a...

The axial loads of high-speed rotating turbo machines are supported by self-acting hydrodynamic components known as air foil thrust bearings (AFTB). load bearing capability these depends primarily on the structure and secondarily operating conditions. present review enlightens tribological performance parameters said in enhancing carrying capacity. Various design fabrication methods including t...

The following content refers to the thermal aspects of Gas Foil Bearing (GFB). GFBs are subgroup journal bearings, for which lubrication is provided by air, instead ‘traditional’ lubricants like oil, graces etc. Bearings offer specific features unachievable traditional bearings. GFB can operate with rotating speed up several dozens krpm in extreme temperature hundreds Celsius degrees. However d...

Obstacles and swimming fish in flow create a wake with an alternating left/right vortex pattern known as a Kármán vortex street and reverse Kármán vortex street, respectively. An energy-efficient fish behavior resembling slaloming through the vortex street is called Kármán gaiting. This paper describes the use of a bioinspired array of pressure sensors on a Joukowski foil to estimate and contro...