VIBRATION-DAMPING SYSTEM FOR A TURBINE BLADE AND A SPACER FOR POSITIONING ADJACENT A TURBINE BLADE
A vibration-damping system (128) for turbine blade(s) (114) in a turbine (108) is provided. Each turbine blade (114) includes a platform (136, 136A, 136B) having a radially inner surface (137, 184). The system (128) includes a spacer (150) axially adjacent the platform (136, 136A, 136B) of the at le...
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Main Authors | , |
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Format | Patent |
Language | English French German |
Published |
08.12.2021
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Subjects | |
Online Access | Get full text |
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Summary: | A vibration-damping system (128) for turbine blade(s) (114) in a turbine (108) is provided. Each turbine blade (114) includes a platform (136, 136A, 136B) having a radially inner surface (137, 184). The system (128) includes a spacer (150) axially adjacent the platform (136, 136A, 136B) of the at least one turbine blade (114) in the turbine (108), e.g., adjacent a turbine blade (114) stage. The spacer (150) includes a body (154) having a gaspath facing surface (156) forming a portion of an annulus for a working fluid flowpath. A damping element coupler (162) is on the body (154) of the spacer (150), and a vibration-damping element (164) is configured to couple to the damping element coupler (162). The vibration-damping element (164) and the damping element coupler (162) are disposed to cause the vibration-damping element (164) to engage the radially inner surface (137, 184) of the platform (136, 136A, 136B) of the turbine blade(s) (114) to dampen vibration of the turbine blade(s) (114) during operation of the turbine (108). |
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Bibliography: | Application Number: EP20210172593 |