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Title: Snubber assembly for turbine blades

Patent ·
OSTI ID:1093243

A snubber associated with a rotatable turbine blade in a turbine engine, the turbine blade including a pressure sidewall and a suction sidewall opposed from the pressure wall. The snubber assembly includes a first snubber structure associated with the pressure sidewall of the turbine blade, a second snubber structure associated with the suction sidewall of the turbine blade, and a support structure. The support structure extends through the blade and is rigidly coupled at a first end portion thereof to the first snubber structure and at a second end portion thereof to the second snubber structure. Centrifugal loads exerted by the first and second snubber structures caused by rotation thereof during operation of the engine are at least partially transferred to the support structure, such that centrifugal loads exerted on the pressure and suctions sidewalls of the turbine blade by the first and second snubber structures are reduced.

Research Organization:
Siemens Energy, Inc. (Orlando, FL)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC26-05NT42644
Assignee:
Siemens Energy, Inc. (Orlando, FL)
Patent Number(s):
8,523,525
Application Number:
12/701,041
OSTI ID:
1093243
Country of Publication:
United States
Language:
English

References (8)

Lacing for Compressor Blades patent November 1956
Method of repairing turbine blades patent September 1989
Blade Lashing patent June 1928
Vibration supression for turbine blades patent May 1981
Aerodynamically optimized mid-span snubber for combustion turbine blade patent December 1997
Turbine Blading and Lashing Therefor patent March 1930
Rotor blade damping structure for axial-flow turbine patent April 1996
Moving blades for steam turbine patent January 2004

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