TURBINE BLADE WITH FRICTION AND IMPACT VIBRATION DAMPING ELEMENTS

A turbine blade (114) includes an airfoil body (138) having an outer tip (148) and a platform (136); and a part-span shroud positioned between the outer tip and the platform of the airfoil body (138). The part-span shroud (150) has a first opening (160) having a first inner surface therein (162). Th...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	DELVAUX, John McConnell, ZHANG, James, WONDRASEK, Michael Anthony
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
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	A turbine blade (114) includes an airfoil body (138) having an outer tip (148) and a platform (136); and a part-span shroud positioned between the outer tip and the platform of the airfoil body (138). The part-span shroud (150) has a first opening (160) having a first inner surface therein (162). The airfoil body (138) includes a second opening (164, 182) extending radially from the first opening (160) and having a second inner surface (166). A first elongated vibration-damping element (176) is disposed in the first opening (160), and a second elongated vibration-damping element (178) disposed radially in the second opening (164). The second elongated vibration-damping element (178) includes a free radially outer end (184) and a radially inner end (180) coupled to the first elongated vibration-damping element (176). The first elongated vibration-damping element (176) frictionally damps vibration, and the second elongated vibration-damping element (178) damps vibration using impact within the second opening (164).