Turbine assembly and corresponding method of altering a fundamental requency

According to one aspect of the invention, a turbine assembly includes an airfoil extending from a blade and a dovetail (300) located on a lower portion of the blade, wherein the dovetail (300) has a dovetail contact surface (317). The turbine assembly also includes a member with a slot configured to...

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Bibliographische Detailangaben
Hauptverfasser:	ZEMITIS, WILLIAM SCOTT, PENNY, CHRISTOPHER MICHAEL
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING ENGINE PLANTS IN GENERAL HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES STEAM ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	According to one aspect of the invention, a turbine assembly includes an airfoil extending from a blade and a dovetail (300) located on a lower portion of the blade, wherein the dovetail (300) has a dovetail contact surface (317). The turbine assembly also includes a member with a slot configured to couple to the airfoil via the dovetail (300), the slot having a slot contact surface to contact the dovetail contact surface (317), wherein the dovetail contact surface (317) is reduced by a relief (302, 306, 310, 314) to alter a fundamental frequency of an assembly of the blade and member. A corresponding method of altering a fundamental frequency of a turbine assembly is also provided.