DETUNED VANE AIRFOIL ASSEMBLY

A vane assembly (40) comprises circumferentially adjacent airfoils (42A,42B) formed of composite materials. The airfoils (42A,42B) have matching exterior geometries defined by pressure and suction surfaces (43,44) extending axially from a leading edge (45) to a trailing edge (46) and radially from a...

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Bibliographische Detailangaben
1. Verfasser:	Glaspey, James
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:	A vane assembly (40) comprises circumferentially adjacent airfoils (42A,42B) formed of composite materials. The airfoils (42A,42B) have matching exterior geometries defined by pressure and suction surfaces (43,44) extending axially from a leading edge (45) to a trailing edge (46) and radially from a root section (47) to a tip section (48). An inner platform (50) is attached to each of the circumferentially adjacent airfoils (42A,42B) at the root section (47), and an outer platform (51) is attached at the tip section (48). The composite materials are selected to define a vibration mode (H1,H2,H3,H1',H2',H3') with different vibration frequencies in the circumferentially adjacent airfoils (42A,42B), where the different vibration frequencies are separated by more than a full width of the vibration mode at half maximum (FWHM).