SQUEEZE FILM DAMPER SYSTEM FOR A GAS TURBINE ENGINE WITH RADIAL SPRINGS CONTAINING A MAGNETO-RHEOLOGICAL FLUID

A magnetic squeeze film damper system comprises a bearing assembly (10) having an outer race (20) with a first outer surface (30) and a first inner surface (40) and rolling elements (50) located along the first inner surface (40). The system further comprises a squeeze film damper housing (60) havin...

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Bibliographische Detailangaben
Hauptverfasser:	Burns, Donald W, Cookerly, Alan B, Clemens, Stanford O, Copeland, Andrew D
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AIR INTAKES FOR JET-PROPULSION PLANTS BEARINGS BLASTING COMBUSTION ENGINES CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS ELEMENTS OR CRANKSHAFT MECHANISMS ENGINE PLANTS IN GENERAL ENGINEERING ELEMENTS AND UNITS FLEXIBLE SHAFTS GAS-TURBINE PLANTS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MACHINES OR ENGINES IN GENERAL MEANS FOR DAMPING VIBRATION MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS SHOCK-ABSORBERS SPRINGS STEAM ENGINES THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A magnetic squeeze film damper system comprises a bearing assembly (10) having an outer race (20) with a first outer surface (30) and a first inner surface (40) and rolling elements (50) located along the first inner surface (40). The system further comprises a squeeze film damper housing (60) having a second outer surface (70) and a second inner surface (80) that is contiguous with the first outer surface (30). A channel (90) having a forward end (100) and an aft end (110) is defined within the housing (60) along the second inner surface (80), the channel (90) being bordered by the first outer surface (30). The system further includes a first seal gland (120) located along the forward end (100) of the channel (90) and a second seal gland (130) located along the aft end (110) of the channel (90). Both seal glands (120, 130) comprise a reservoir (140, 150) for holding a magneto-rheological fluid (170). The reservoirs are encased in an elastomer (160). At least one electromagnet (180, 190) is arranged in close proximity to each of the seal glands (120, 130).