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US 7,024,744 B2Granted
Frequency-tuned compressor stator blade and related method
AssigneeGeneral Electric Company
InventorsNicholas Francis Martin, Thomas Robbins Tipton
Life of this patent
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AssigneeGeneral Electric Company
InventorsNicholas Francis Martin, Thomas Robbins Tipton
Estimating the term…
A method of tuning a compressor stator blade having a base portion and an airfoil portion to achieve a desired natural frequency, includes a) identifying the natural frequency of the compressor stator blade; b) determining a different target natural frequency for the compressor stator blade; and c) removing material from the base portion of the compressor stator blade in an amount and in a configuration that achieves the target natural frequency. A frequency-tuned compressor stator blade includes an airfoil portion and a base portion, the base portion having a substantially solid rectangular shape; and a groove cut across a width dimension of the base portion, the groove having dimensions selected to obtain a predetermined natural frequency for the airfoil portion.
A method of tuning a compressor stator blade, having a base portion and an airfoil portion, to achieve a desired natural frequency, comprising:
A method of tuning a compressor stator blade so as to achieve a desired natural frequency, wherein the stator blade has an airfoil portion and a base portion that is substantially rectangular, with a pair of relatively longer side surfaces, a pair of relatively shorter end surfaces' a radially inner surface and a radially outer surface;
Dependencies are inferred from the claim text.