[HTML][HTML] Modal parameter estimation of turbomachinery in operation taking into account friction damping

M Amer, CE Ventura, N Maroldt, JR Seume… - … Systems and Signal …, 2024 - Elsevier
Operational modal analysis is used to identify modal parameters of a rotating machine, more
specifically an axial compressor. The application of operational modal analysis to rotating …

An equation decoupling approach to identify the equivalent foundation in rotating machinery using modal parameters

M Yu, N Feng, EJ Hahn - Journal of Sound and Vibration, 2016 - Elsevier
A correct modelling of rotor-bearing-foundation-system (RBFS) can provide effective rotor
balancing and fault diagnostics, therefore, optimise the operating efficiency of the rotating …

Experimental evaluation of a modal parameter based system identification procedure

M Yu, N Feng, EJ Hahn - Mechanical Systems and Signal Processing, 2016 - Elsevier
Correct modelling of the foundation of a rotor bearing foundation system (RBFS) is an
invaluable asset for the balancing and efficient running of turbomachinery. Numerical …

Identification of foundations in rotating machinery using modal parameters

M Yu, N Feng, E Hahn - 10th International Conference on …, 2012 - books.google.com
The vibration behaviour of a rotor bearing foundation system (RBFS) is affected by its
foundation. This paper develops a parameter identification procedure using rotor and …

Experimental evaluation of a modal parameter based foundation identification procedure

M Yu, N Feng, EJ Hahn - Proceedings of the 9th IFToMM International …, 2015 - Springer
One approach to model foundations of existing turbomachinery installations uses motion
measurements at bearing supports and at select points on the foundation to identify the …

[PDF][PDF] Oversampled Modal Approach of a Turbocharger Rotor from the Experimental Lateral Vibrations.

LA Montoya Santiyanes, EE Rodríguez Vázquez… - International Journal of …, 2019 - iiav.org
The elements of rotors have inherent characteristics as geometry and material composition,
which causes natural vibrations at frequencies that, due to the rotor unbalance, may …

[PDF][PDF] Oversampled modal analysis of a turbocharger rotor from the experimental lateral vibrations

LA Montoya, EE Rodríguez, HJ Zúñiga, I Mejía - amca.mx
The dynamic responses of turbomachinery is affected by some factors such as rotor
unbalance, coupling defects and support bearings, as well as the demand for higher …

[PDF][PDF] A comparison of foundation identification using dynamic stiffness parameters versus modal parameters

M Yu, N Feng, EJ Hahn - researchgate.net
For efficient balancing of turbomachinery, one needs an adequate model of the overall rotor
bearing foundation system. At present, it is the modelling of the foundation which is …