Frequency-tuned compressor stator blade and related method

Details Frequency-tuned compressor stator blade and related method Frequency-tuned compressor stator blade and related method

2006-04-11

2006-04-11

Verdier, Christopher (Department: 3745)

Metal working

Method of mechanical manufacture

Converting

C029S407070, C029S889230, C029S889700, C415S119000, C415S191000, C415S208100, C415S208200, C415S209200, C415S209300

Reexamination Certificate

active

07024744

ABSTRACT:
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.

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