Print Email Facebook Twitter Load and stiffness of a planar ferrofluid pocket bearing Title Load and stiffness of a planar ferrofluid pocket bearing Author Lampaert, S.G.E. (TU Delft Mechatronic Systems Design) Spronck, J.W. (TU Delft Mechatronic Systems Design) van Ostayen, R.A.J. (TU Delft Mechatronic Systems Design) Date 2018 Abstract A ferrofluid pocket bearings is a type of hydrostatic bearing that uses a ferrofluid seal to encapsulate a pocket of air to carry a load. Their properties, combining a high stiffness with low (viscous) friction and absence of stick-slip, make them interesting for applications that require fast and high precision positioning. Knowledge on the exact performance of these types of bearings is up to now not available. This article presents a method to model the load carrying capacity and normal stiffness characteristics of this type of bearings. Required for this is the geometry of the bearing, the shape of the magnetic field and the magnetization strength of the fluid. This method is experimentally validated and is shown to be correct for describing the load and stiffness characteristics of any fixed shape of ferrofluid pocket bearing. Subject hydrostatic bearingmagneticsmathematical modellingplanar bearingPrecision engineering To reference this document use: http://resolver.tudelft.nl/uuid:f1bae2c0-bbcc-4059-bd6e-04b7a1be1814 DOI https://doi.org/10.1177/1350650117739200 ISSN 1350-6501 Source Institution of Mechanical Engineers. Proceedings. Part J: Journal of Engineering Tribology, 232 (1), 14-25 Part of collection Institutional Repository Document type journal article Rights © 2018 S.G.E. Lampaert, J.W. Spronck, R.A.J. van Ostayen Files PDF 1350650117739200.pdf 1.27 MB Close viewer /islandora/object/uuid:f1bae2c0-bbcc-4059-bd6e-04b7a1be1814/datastream/OBJ/view