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dc.contributor.authorLarsonneur, R.
dc.contributor.authorTraxler, A.
dc.contributor.authorBright, M. M.
dc.contributor.authorSpakovszky, Zoltan S
dc.contributor.authorPaduano, James D
dc.date.accessioned2017-01-04T21:45:33Z
dc.date.available2017-01-04T21:45:33Z
dc.date.issued2000-05
dc.identifier.isbn978-0-7918-7854-5
dc.identifier.urihttp://hdl.handle.net/1721.1/106196
dc.description.abstractMagnetic bearings are widely used as active suspension devices in rotating machinery, mainly for active vibration control purposes. The concept of active tip clearance control suggests a new application of magnetic bearings as servo-actuators to stabilize rotating stall in axial compressors. This paper presents a first-of-a-kind feasibility study of an active stall control experiment with a magnetic bearing servo-actuator in the NASA Glenn high-speed single-stage compressor test facility. Together with CFD and experimental data a two-dimensional, incompressible compressor stability model was used in a stochastic estimation and control analysis to determine the required magnetic bearing performance for compressor stall control. The resulting requirements introduced new challenges to the magnetic bearing actuator design. A magnetic bearing servo-actuator was designed which fulfilled the performance specifications. Control laws were then developed to stabilize the compressor shaft. In a second control loop, a constant gain controller was implemented to stabilize rotating stall. A detailed closed loop simulation at 100% corrected design speed resulted in a 2.3% reduction of stalling mass flow which is comparable to results obtained in the same compressor by Weigl et al. (1998) using unsteady air injection. The design and simulation results presented here establish the viability of magnetic bearings for stall control in aero-engine high-speed compressors. Furthermore the paper outlines a general design procedure to develop magnetic bearing servo-actuators for high-speed turbomachinery.en_US
dc.description.sponsorshipUnited States. National Aeronautics and Space Administration (Grant NAG3-1457)en_US
dc.language.isoen_US
dc.publisherAmerican Society of Mechanical Engineers (ASME)en_US
dc.relation.isversionofhttp://dx.doi.org/10.1115/2000-GT-0528en_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.sourceASMEen_US
dc.titleTip-Clearance Actuation With Magnetic Bearings for High-Speed Compressor Stall Controlen_US
dc.typeArticleen_US
dc.identifier.citationSpakovszky, Z. S. et al. “Tip-Clearance Actuation With Magnetic Bearings for High-Speed Compressor Stall Control.” ASME, 2000.en_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Aeronautics and Astronauticsen_US
dc.contributor.mitauthorSpakovszky, Zoltan S
dc.contributor.mitauthorPaduano, James D
dc.relation.journalASME Turbo Expo 2000: Power for Land, Sea, and Airen_US
dc.eprint.versionAuthor's final manuscripten_US
dc.type.urihttp://purl.org/eprint/type/ConferencePaperen_US
eprint.statushttp://purl.org/eprint/status/NonPeerRevieweden_US
dspace.orderedauthorsSpakovszky, Z. S.; Paduano, J. D.; Larsonneur, R.; Traxler, A.; Bright, M. M.en_US
dspace.embargo.termsNen_US
dc.identifier.orcidhttps://orcid.org/0000-0003-2167-9860
mit.licensePUBLISHER_POLICYen_US


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