Vibration supression for turbine blades

Details Vibration supression for turbine blades Vibration supression for turbine blades

1978-09-14

1981-05-19

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Lashing between working members or external bracing

Connecting adjacent work surfaces

416500, F01D 524

Patent

active

042682231

ABSTRACT:
A method and apparatus for suppressing vibration in turbine blading and the like is disclosed. A damping tube is inserted through an aperture in each of a plurality of turbine blades. By expanding the damping tube after it is inserted in the blades the tube is firmly secured to each blade. A wire may be inserted through the damping tube and is secured by crimping the expanded tube portions. The tube may be divided into circumferential segments with each tube being widened for example by means of a center punch at an end portion which extends through the final blade of each segment.

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