Structural vibration damper for pump or turbine - uses viscous elastic material in drillings in rigid component vibrating with structure

摘要

The equipment damps out vibration in structures or objects, the vibration energy being absorbed in viscous elastic material. A rigid component (2) which can be part of the structure or object (1), which is uncoupled from at least one part of it, is so mounted on it as to vibrate with it. The viscous elastic material (3) is accommodated in first drillings (4) in the rigid component, to adhere to the surfaces enclosing the drillings. The drillings can extend from the interface between component and structure, and for at least half the component thickness.