A 35,000 RPM Test Rig For Magnetic, Hybrid And Back-Up Bearings Swanson, E.E., Walton, J.F. II, Heshmat, H., 1999 ASME Paper 99-GT-180 Abstract Magnetic bearings have long offered the potential for significant turbomachinery system improvements due to their oil-free, non-contact, low loss nature and their ability to actively control shaft dynamic motion. However, end-users and…

Survey Of Experimental Data For Fixed Geometry Hydrodynamic Journal Bearings Swanson, E.E., Kirk, R.G., 1997 ASME Journal of Tribology, 119, pp.704-710. Abstract An extensive survey of the experimental research on the static and/or dynamic characteristics of fixed geometry, hydrodynamic journal bearings available in English, in the open literature is presented.  The type(s) of bearing, size…

Test Results And Numerical Simulation Of AMB Rotor Drop Swanson, E.E., Raju, K.V.S., Kirk, R.G., 1996 Proc. 6th Int’l Conf. on Vibrations in Rotating Mach., IMechE, pp. 119-131 Abstract Active magnetic bearings (AMB) for use in land based turbomachinery has enjoyed substantial growth during the past decade. Their advantages to many applications make them an…

Evaluation Of AMB Turbomachinery Auxiliary Bearings Kirk, R.G., Raju, K.V.S., Swanson, E.E., 1996 Proc Fifth Colloquium on Turbomachinery, Turbo and Power Machinery Research Center, Seoul National University, Seoul, Korea, May 6-11. Abstract The use of active magnetic bearings (AMB) for turbomachinery has experienced substantial growth during the past two decades. The advantages for many applications…

Simulation Of AMB Turbomachinery For Transient Loading Conditions Raju, K.V.S., Ramesh, K., Swanson, E.E., Kirk, R.G., 1995 Proc. MAG ’95, pp. 227-235. Abstract The increasing number of critical path machinery applications using active magnetic bearing (AMB) technology has focused awareness on the necessity for proper design of the auxiliary (backup) bearings.  These emergency bearings are…

Experimental Temperature And Pressure Profiles For Two Steadily Loaded Journal Bearings Swanson, E.E., Kirk, R.G., 1995 Tribology Transactions, 38, pp. 601-606. Abstract Experimental temperature and pressure profiles for a steel and a bronze bearing are examined.  The comparisons show systematic differences between these otherwise identical bearings.  These comparisons suggest that there would be merit in…

AMB Rotor Drop Initial Transient On Ball And Solid Bearings Swanson, E.E., Kirk, R.G., 1995 Proc. MAG ’95, pp. 227-235. Abstract The increasing number of critical path machinery applications using active magnetic bearing (AMB) technology has focused awareness on the necessity for proper design of the auxiliary (backup) bearings.  These emergency bearings are required to…

Rotor Drop Test Stand For AMB Rotating Machinery, Part I: Description Of Test Stand And Initial Results Kirk, R.G., Swanson, E.E., Kavarana, F.H., Wang, X., 1994 Proc. of Fourth International Symposium on Magnetic Bearings, Zurich, pp. 207-212. Abstract The recent increase in the number of critical path rotating machinery applications using active magnetic bearing (AMB)…

An Experimental Comparison Of Two Steadily Loaded Plain Journal Bearings Swanson, E.E., Kirk, R.G., 1994 Tribology Transactions, 37, pp. 843-849. Abstract A potentially powerful effect on the characteristics of plain journal bearings is local thermal deformation of the bearing surface.  Although there are a few analyses that consider the effect, it is ignored by most…

Experimental Evaluation Of Fluid-Film Bearings Using Electro-Magnetic Shaft Loading And Evidence Of Localized Thermal Distortion Swanson, E.E., Kirk, R.G., 1992 Proc. 5th Int’l Conf. on Vibrations in Rotating Mach., IMechE, pp. 359-363. Abstract During the preliminary operational verification of a new test rig, a possible source of some of the discrepancy between analytical and experimental…