Coupled vibration of unshrouded centrifugal compressor impellers. Part I: Experimental investigation

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dc.identifier.uri http://dx.doi.org/10.15488/3754
dc.identifier.uri https://www.repo.uni-hannover.de/handle/123456789/3788
dc.contributor.author Hasemann, Heinrich
dc.contributor.author Hagelstein, Dirk
dc.contributor.author Rautenberg, Manfred
dc.date.accessioned 2018-10-08T11:54:14Z
dc.date.available 2018-10-08T11:54:14Z
dc.date.issued 2000
dc.identifier.citation Hasemann, H.; Hagelstein, D.; Rautenberg, M.: Coupled vibration of unshrouded centrifugal compressor impellers. Part I: Experimental investigation. In: International Journal of Rotating Machinery 6 (2000), Nr. 2, S. 101-113. DOI: https://doi.org/10.1155/S1023621X00000105
dc.description.abstract The increased use of small gas turbines and turbochargers in different technical fields has led to the development of highly-loaded centrifugal compressors with extremely thin blades. Due to the high rotational speed and the corresponding centrifugal load, the shape of the impeller hub must also be optimized. This has led to a reduction of the thickness of the impeller disc in the outlet region. The thin parts of the impeller are very sensitive and may be damaged by the excitation of dangerous blade vibrations. Experimental investigations by means of holographic interferometry and telemetry were carried out for two different impeller types; one with radial-ending blades and the other with backswept blades. The results presented in Part I of the paper are able to explain the dominance of coupling effects between the blades and the disc in the middle and higher frequency range of the two tested impellers. Especially excitations caused by downstream sources such as vaned diffusers can endanger the blades and the impeller. The finite element (FE) code computations presented in Part II of the paper to investigate the coupled vibration behavior of the whole impeller were found to be in close agreement with the experimental results. eng
dc.language.iso eng
dc.publisher New York, NY : Hindawi Publishing Corporation
dc.relation.ispartofseries International Journal of Rotating Machinery 6 (2000), Nr. 2
dc.rights CC BY 3.0
dc.rights.uri https://creativecommons.org/licenses/by/3.0/
dc.subject Blade vibrations eng
dc.subject Centrifugal compressor eng
dc.subject Coupled vibrations eng
dc.subject Holographic interferometry eng
dc.subject.ddc 620 | Ingenieurwissenschaften und Maschinenbau ger
dc.title Coupled vibration of unshrouded centrifugal compressor impellers. Part I: Experimental investigation
dc.type article
dc.type Text
dc.relation.issn 1023621X
dc.relation.doi https://doi.org/10.1155/S1023621X00000105
dc.bibliographicCitation.issue 2
dc.bibliographicCitation.volume 6
dc.bibliographicCitation.firstPage 101
dc.bibliographicCitation.lastPage 113
dc.description.version publishedVersion
tib.accessRights frei zug�nglich


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