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  • 标题:Balancing of turbomachine rotors by increasing the eccentricity identification accuracy
  • 本地全文:下载
  • 作者:Goroshko A ; Ostaševičius V. ; Royzman V
  • 期刊名称:Mechanika
  • 印刷版ISSN:1392-1207
  • 出版年度:2016
  • 卷号:22
  • 期号:3
  • 页码:206-211
  • DOI:10.5755/j01.mech.22.3.14576
  • 语种:English
  • 出版社:Kauno Technologijos Universitetas
  • 摘要:The article presents the results of research aimed at improving the identification of eccentricities by ensuring the stability of solutions of linear discrete inverse prob-lems. The results of the application of scaling factors of systems with a view to reducing their dependence are sug-gested. Identified eccentricities imbalances and angles of their location allowed to balance the rotor turbopump unit TNA-150 and reduce the maximum deflection of the rotor shaft in the range of 2000-18000 rpm 6 times, the ampli-tude of vibration supports - 4 times, the static tension in the material of the shaft - 3.5 times, and dynamic tension- 3 times. The use of linear filtering LSEs based on the PCA method, has significantly reduced the LSE scattering and accurately identify the eccentricities of the compressor rotor of aircraft engine AI-20.
  • 关键词:eccentricity; imbalance; inverse problem; rotor; least squares estimator; principal components analysis
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