| Title |
Balancing of turbomachine rotors by increasing the eccentricity identification accuracy |
| Authors |
Goroshko, A ; Royzman, V ; Ostaševičius, V |
| DOI |
10.5755/j01.mech.22.3.14576 |
| Full Text |
|
| Is Part of |
Mechanika.. Kaunas : KTU. 2016, vol. 22, no. 3, p. 206-211.. ISSN 1392-1207. eISSN 2029-6983 |
| Keywords [eng] |
eccentricity ; imbalance ; inverse problem ; rotor ; east s quares e stimator ; principal components analysis |
| Abstract [eng] |
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.DOI: http://dx.doi.org/10.5755/j01.mech.22.3.14576. |
| Published |
Kaunas : KTU |
| Type |
Journal article |
| Language |
English |
| Publication date |
2016 |
| CC license |
|
