| 摘要 |
A component such as a blade for use in a gas turbine engine comprises a body 2 formed from outer panels 8, 10 defining an internal cavity 12 . A damping element 14 is provided in the cavity 12 and is secured at one end between the panels 8, 10 at one end of the body 2 , for example adjacent the root of the blade. Damping material fills the cavity 12 and so extends between the damping element 14 and the panels 8, 10 . Vibration induced in the blade causes relative movement between the body 2 of the blade and the damping element 14 , causing energy loss in the damping material which damps the vibration. The components 8, 10, 14 may be secured by a diffusion bonding process.
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