Rotor blade vibrations observed in the Darmstadt transonic compressor rig are investigated in this paper. The vibrations are nonsynchronous and occur in the near stall (NS) operating region. Rotor tip flow fluctuations traveling near the leading edge (LE) against the direction of rotation (in the rotor relative frame of reference) with about 50% blade tip speed are found to be the reason for the occurrence of the vibrations. The investigations show that the blockage at the rotor tip is an important factor for the aeroelastic stability of the compressor in the NS region. It is found that by application of a recirculating tip injection (TI) casing treatment, the aeroelastic stability increases as a result of reduced blockage in the rotor tip region.
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February 2018
Research-Article
Influence of Rotor Tip Blockage on Near Stall Blade Vibrations in an Axial Compressor Rig
Daniel Möller,
Daniel Möller
Institute of Gas Turbines and
Aerospace Propulsion,
Technische Universität Darmstadt,
Darmstadt 64287, Germany
e-mail: moeller@glr.tu-darmstadt.de
Aerospace Propulsion,
Technische Universität Darmstadt,
Darmstadt 64287, Germany
e-mail: moeller@glr.tu-darmstadt.de
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Maximilian Jüngst,
Maximilian Jüngst
Institute of Gas Turbines and
Aerospace Propulsion,
Technische Universität Darmstadt,
Darmstadt 64287, Germany
Aerospace Propulsion,
Technische Universität Darmstadt,
Darmstadt 64287, Germany
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Heinz-Peter Schiffer,
Heinz-Peter Schiffer
Institute of Gas Turbines and Aerospace Propulsion,
Technische Universität Darmstadt,
Darmstadt 64287, Germany
Technische Universität Darmstadt,
Darmstadt 64287, Germany
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Thomas Giersch,
Thomas Giersch
Rolls-Royce Deutschland
Blankenfelde-Mahlow 15827, Germany
Blankenfelde-Mahlow 15827, Germany
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Frank Heinichen
Frank Heinichen
Rolls-Royce Deutschland
Blankenfelde-Mahlow 15827, Germany
Blankenfelde-Mahlow 15827, Germany
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Daniel Möller
Institute of Gas Turbines and
Aerospace Propulsion,
Technische Universität Darmstadt,
Darmstadt 64287, Germany
e-mail: moeller@glr.tu-darmstadt.de
Aerospace Propulsion,
Technische Universität Darmstadt,
Darmstadt 64287, Germany
e-mail: moeller@glr.tu-darmstadt.de
Maximilian Jüngst
Institute of Gas Turbines and
Aerospace Propulsion,
Technische Universität Darmstadt,
Darmstadt 64287, Germany
Aerospace Propulsion,
Technische Universität Darmstadt,
Darmstadt 64287, Germany
Heinz-Peter Schiffer
Institute of Gas Turbines and Aerospace Propulsion,
Technische Universität Darmstadt,
Darmstadt 64287, Germany
Technische Universität Darmstadt,
Darmstadt 64287, Germany
Thomas Giersch
Rolls-Royce Deutschland
Blankenfelde-Mahlow 15827, Germany
Blankenfelde-Mahlow 15827, Germany
Frank Heinichen
Rolls-Royce Deutschland
Blankenfelde-Mahlow 15827, Germany
Blankenfelde-Mahlow 15827, Germany
1Corresponding author.
Contributed by the International Gas Turbine Institute (IGTI) of ASME for publication in the JOURNAL OF TURBOMACHINERY. Manuscript received August 28, 2017; final manuscript received October 1, 2017; published online December 6, 2017. Editor: Kenneth Hall.
J. Turbomach. Feb 2018, 140(2): 021007 (12 pages)
Published Online: December 6, 2017
Article history
Received:
August 28, 2017
Revised:
October 1, 2017
Citation
Möller, D., Jüngst, M., Schiffer, H., Giersch, T., and Heinichen, F. (December 6, 2017). "Influence of Rotor Tip Blockage on Near Stall Blade Vibrations in an Axial Compressor Rig." ASME. J. Turbomach. February 2018; 140(2): 021007. https://doi.org/10.1115/1.4038316
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