发明名称 Blade made of composite material comprising a damping device
摘要 A blade made of composite material including an airfoil formed of filaments or fibers, optionally woven, impregnated with a heat-curable resin, with an intrados wall and an extrados wall between the leading edge and the trailing edge; and a device for damping the vibrations incorporated in one or other of the intrados and extrados walls is disclosed. The damping device is formed of at least one layer made of viscoelastic material and a layer made of rigid material, these layers being superposed. The layer made of rigid material includes a first zone and a second zone. The layer made of viscoelastic material is interposed between the airfoil and the first zone of the rigid layer, and the second zone of the rigid layer is attached to the wall of the airfoil without interposition of viscoelastic material.
申请公布号 US8500410(B2) 申请公布日期 2013.08.06
申请号 US20100720226 申请日期 2010.03.09
申请人 DE MOURA RAUL FERNANDO;JEAN PIERRICK BERNARD;LE HONG SON;LOMBARD JEAN-PIERRE FRANCOIS;SNECMA 发明人 DE MOURA RAUL FERNANDO;JEAN PIERRICK BERNARD;LE HONG SON;LOMBARD JEAN-PIERRE FRANCOIS
分类号 F01D5/16 主分类号 F01D5/16
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