Tilting pad journal bearings (TPJB) are mechanical components of fundamental importance for the proper operation of turbomachinery and the knowledge of bearing stiffness and damping coefficients is essential for rotor design. A high performance test bench has been designed specifically to carry out the experimental activity necessary for their determination. The tests carried out show a dependence of the dynamic coefficients on the excitation frequency of the dynamic load. In this work, different data fitting methods for the identification of synchronous dynamic coefficients are compared in order to evaluate the corresponding error in the predictions.
INFLUENCE OF DIFFERENT FITTING METHODS ON THE IDENTIFICATION OF THE SYNCHRONOUS DYNAMIC COEFFICIENTS OF TILTING PAD JOURNAL BEARINGS
Michele Barsanti
Primo
;Enrico CiulliSecondo
;Paola FortePenultimo
;
2021-01-01
Abstract
Tilting pad journal bearings (TPJB) are mechanical components of fundamental importance for the proper operation of turbomachinery and the knowledge of bearing stiffness and damping coefficients is essential for rotor design. A high performance test bench has been designed specifically to carry out the experimental activity necessary for their determination. The tests carried out show a dependence of the dynamic coefficients on the excitation frequency of the dynamic load. In this work, different data fitting methods for the identification of synchronous dynamic coefficients are compared in order to evaluate the corresponding error in the predictions.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
