Abstract
Bifurcation of the trajectory of the resonance of rotor blades of an axial turbocompressor leading to flutter of the blade cascade is investigated. The investigation is based on spectral analysis of the records of the transient process of the blades. It is shown that in contrast to the resonance, which has a constant phase difference between the excitation and forced oscillations of the blades, the phase shift of collective synchronous vibrations of the blades during the flutter depends on their number and the form of the diametral mode of the blade cascade. It is formed by one of the pulsation modes of the pressure of air flow.
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Original Russian Text © R.F. Ganiev, O.B. Balakshin, B.G. Kukharenko, 2012, published in Doklady Akademii Nauk, 2012, Vol. 444, No. 1, pp. 35–37.
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Ganiev, R.F., Balakshin, O.B. & Kukharenko, B.G. Bifurcation of resonance during flutter of the blades of a turbocompressor rotor. Dokl. Phys. 57, 189–191 (2012). https://doi.org/10.1134/S1028335812050023
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DOI: https://doi.org/10.1134/S1028335812050023