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Title: Turbine blade damping device with controlled loading

A damping structure for a turbomachine rotor. The damping structure including an elongated snubber element including a first snubber end rigidly attached to a first blade and extending toward an adjacent second blade, and an opposite second snubber end positioned adjacent to a cooperating surface associated with the second blade. The snubber element has a centerline extending radially inwardly in a direction from the first blade toward the second blade along at least a portion of the snubber element between the first and second snubber ends. Rotational movement of the rotor effects relative movement between the second snubber end and the cooperating surface to position the second snubber end in frictional engagement with the cooperating surface with a predetermined damping force determined by a centrifugal force on the snubber element.
Authors:
Publication Date:
OSTI Identifier:
1221800
Report Number(s):
RE45,690
14/190,529
DOE Contract Number:
FC26-05NT42644
Resource Type:
Patent
Resource Relation:
Conference: San Jose, California United States, 8-13 June 2014; Patent File Date: 2014 Feb 26
Research Org:
Siemens Energy, Inc., Orlando, FL (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING