Möller, Daniel ; Jüngst, Maximilian ; Giersch, Thomas ; Heinichen, Frank ; Schiffer, Heinz-Peter (2017)
Influence of Rotor Tip Blockage on Near Stall Blade Vibrations in an Axial Compressor Rig.
Proceedings of the ASME Turbo Expo 2017. Charlotte, NC, USA (26.06.2017-30.06.2017)
doi: 10.1115/GT2017-63660
Konferenzveröffentlichung, Bibliographie
Kurzbeschreibung (Abstract)
Rotor blade vibrations observed in the Darmstadt transonic compressor rig are investigated in this paper. The vibrations are non-synchronous and occur in the near stall operating region. Rotor tip flow fluctuations traveling near the leading edge 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 near stall region. It is found, that by application of a recirculating tip injection casing treatment, the aeroelastic stability increases as a result of reduced blockage in the rotor tip region.
| Typ des Eintrags: | Konferenzveröffentlichung |
|---|---|
| Erschienen: | 2017 |
| Autor(en): | Möller, Daniel ; Jüngst, Maximilian ; Giersch, Thomas ; Heinichen, Frank ; Schiffer, Heinz-Peter |
| Art des Eintrags: | Bibliographie |
| Titel: | Influence of Rotor Tip Blockage on Near Stall Blade Vibrations in an Axial Compressor Rig |
| Sprache: | Englisch |
| Publikationsjahr: | 2017 |
| Buchtitel: | Volume 7B: Structures and Dynamics |
| Band einer Reihe: | 7B |
| Veranstaltungstitel: | Proceedings of the ASME Turbo Expo 2017 |
| Veranstaltungsort: | Charlotte, NC, USA |
| Veranstaltungsdatum: | 26.06.2017-30.06.2017 |
| DOI: | 10.1115/GT2017-63660 |
| URL / URN: | https://doi.org/10.1115/GT2017-63660 |
| Kurzbeschreibung (Abstract): | Rotor blade vibrations observed in the Darmstadt transonic compressor rig are investigated in this paper. The vibrations are non-synchronous and occur in the near stall operating region. Rotor tip flow fluctuations traveling near the leading edge 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 near stall region. It is found, that by application of a recirculating tip injection casing treatment, the aeroelastic stability increases as a result of reduced blockage in the rotor tip region. |
| Freie Schlagworte: | Compressors , Rotors , Vibration , Blades |
| Zusätzliche Informationen: | GT2017-63660 |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Fachgebiet für Gasturbinen, Luft- und Raumfahrtantriebe (GLR) |
| Hinterlegungsdatum: | 05 Apr 2018 09:42 |
| Letzte Änderung: | 06 Mär 2020 07:20 |
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