Damping device for composite blade

Details Damping device for composite blade Damping device for composite blade

2008-09-12

2011-11-22

Lebentritt, Michael (Department: 2829)

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Laminated, embedded member or encased material

C416S205000, C416S207000, C416S232000, C416S24100B, C416S500000

Reexamination Certificate

active

08061997

ABSTRACT:
The present invention relates to a blade made of composite, comprising a vane formed of woven filaments impregnated with a thermosetting resin with a protective element in the region of the leading edge of the vane comprising a part in the form of a rigid strip, said strip being secured to the vane. The blade is characterized in that at least one layer of a viscoelastic material is at least partially interposed between said rigid strip and the vane so as to form, with the protective element, a means of damping the vibrations of the vane.

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