Page 215 - Steam Turbines Design, Applications, and Rerating
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194   Chapter Eleven








































            Figure 11.5 Additional vibration modes of a shrouded blade group.
            (Dresser-Rand Company, Wellsville, N.Y.)





















            Figure 11.6 Block diagram of transfer function analysis applied to
            determine blade frequencies. (Dresser-Rand Company, Wellsville,
            N.Y.)
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