Stall flutter for incomplete synchronization of turbocompressor-blade vibrations

Ганиев, Р. Ф.; Balakshin, O. B.; Kukharenko, B. G.

doi:10.1134/s1028335810030043

Dokl. Phys.

2010

DOI: 10.1134/s1028335810030043

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Stall flutter for incomplete synchronization of turbocompressor-blade vibrations

Р. Ф. Ганиев

O. B. Balakshin

B. G. Kukharenko

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Cited by 2 publications

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“…where , , and are the amplitude and the phase, respectively [4]. In the coor dinate system associated with the compressor stator, the rotating flow separation with frequency , excites all circular modes (acoustic diametral modes) of orders with this frequency.…”

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confidence: 99%

Bifurcation of resonance during flutter of the blades of a turbocompressor rotor

2012

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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 synchro nous 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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confidence: 99%

Bifurcation of resonance during flutter of the blades of a turbocompressor rotor

2012

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Flow modes during stabilization of the flutter of turbocompressor rotor blades

2013

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Stall flutter for incomplete synchronization of turbocompressor-blade vibrations

Cited by 2 publications

References 3 publications

Bifurcation of resonance during flutter of the blades of a turbocompressor rotor

Bifurcation of resonance during flutter of the blades of a turbocompressor rotor

Flow modes during stabilization of the flutter of turbocompressor rotor blades

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