METHOD OF BALANCING A SPOOL OF A GAS TURBINE ENGINE

A method of balancing a spool of a gas turbine engine, the spool including a forward rotor assembly and an aft rotor assembly separated by a spacer, the method comprising: balancing the forward rotor assembly and the aft rotor assembly independently from one another using conventional balancing tech...

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Bibliographische Detailangaben
Hauptverfasser:	BEAMISH, DAVID, WALTERS, CAMERON, WANG, JIEMIN, ROBINSON, RON, HEYERMAN, JEFFREY
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BLASTING ENGINE PLANTS IN GENERAL ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MEANS FOR DAMPING VIBRATION MEASURING MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES PHYSICS SHOCK-ABSORBERS SPRINGS STEAM ENGINES TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A method of balancing a spool of a gas turbine engine, the spool including a forward rotor assembly and an aft rotor assembly separated by a spacer, the method comprising: balancing the forward rotor assembly and the aft rotor assembly independently from one another using conventional balancing techniques; and mathematically modeling the spool; applying a modeled axial load to the modeled spool to determine a trim weight which would balance the spool when subjected to the modeled axial load; and physically placing the trim weight to one of the forward rotor assembly and the aft rotor assembly. Il est décrit une méthode déquilibrage dune bobine dune turbine à gaz, la bobine comprenant un ensemble rotor avant et un ensemble rotor arrière séparés par une entretoise, la méthode consistant à : équilibrer lensemble rotor avant et lensemble rotor arrière indépendamment lun par rapport à lautre au moyen de techniques déquilibrage classiques; et à modéliser mathématiquement la bobine; appliquer une charge axiale modélisée à la bobine modélisée pour déterminer un poids de lestage qui équilibrerait la bobine, lorsque soumise à la charge axiale; et placer physiquement le poids de lestage à lun ou lautre ensemble rotor avant ou ensemble rotor arrière.