Resonant vibrations of shrouded blades with differing frequencies with clapper interference
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We present the results of an experimental study of the influence of detuning of the frequencies of pairwise shrouded blades with clapper interference on their resonant vibrations. It is shown that both with the presence of clapper interference and with clapper clearance the appearance of the dangerous antiphase vibration mode of the paired blades is possible as a consequence of detuning of their frequencies. This mode is characterized by considerable increase of the vibratory stress level of the blades in comparison with the inphase vibrations.
KeywordsExperimental Study Stress Level Vibration Mode Considerable Increase Resonant Vibration
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