TY - GEN
T1 - Study on Mechanism of Shaft Fault Suppression Based on Squeeze Film Damper
AU - Liu, Jun
AU - Wang, Meiling
AU - Mu, Haozhi
AU - Wang, Kai
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/8
Y1 - 2019/8
N2 - Considering the action of the squeeze film damper (SFD), the dynamic characteristics of a rotor-rolling bearing system are studied under rub-impact faults. Based on Lagrange equation, the dynamic model of the rotor-rolling bearing system with rub-impact faults and the SFD was established by using the finite element method, and the Newmark method was used to solve equations of the model. The results show characteristics following. Within a certain range of the SFD oil film clearance can effectively inhibit resonance amplitude of the rotor system, and with the decrease clearance of the oil film, the inhibition effect is more obvious. The rotational speed has an important effect on the rotor-rolling bearing system under rub-impact faults. When the rotational speed enters in the vicinity of the major critical speed, the system will occur complex phenomena with the increase of the rotational speed, such as synchronous full annular rub, period-doubling local rub-impact, single period local rub-impact and quasi-period local rub-impact successively. The clearance of the oil film is an important factor affecting the stability of the rotor system, and the appropriate clearance of the oil film has a higher inhibition effect on the rub-impact. In addition, less clearances of the oil film will aggravate the rub-impact, or even nonlinear phenomena.
AB - Considering the action of the squeeze film damper (SFD), the dynamic characteristics of a rotor-rolling bearing system are studied under rub-impact faults. Based on Lagrange equation, the dynamic model of the rotor-rolling bearing system with rub-impact faults and the SFD was established by using the finite element method, and the Newmark method was used to solve equations of the model. The results show characteristics following. Within a certain range of the SFD oil film clearance can effectively inhibit resonance amplitude of the rotor system, and with the decrease clearance of the oil film, the inhibition effect is more obvious. The rotational speed has an important effect on the rotor-rolling bearing system under rub-impact faults. When the rotational speed enters in the vicinity of the major critical speed, the system will occur complex phenomena with the increase of the rotational speed, such as synchronous full annular rub, period-doubling local rub-impact, single period local rub-impact and quasi-period local rub-impact successively. The clearance of the oil film is an important factor affecting the stability of the rotor system, and the appropriate clearance of the oil film has a higher inhibition effect on the rub-impact. In addition, less clearances of the oil film will aggravate the rub-impact, or even nonlinear phenomena.
KW - Finite element method
KW - Rotor-rolling bearing system
KW - Rub-impact fault
KW - Squeeze film damper
UR - http://www.scopus.com/inward/record.url?scp=85072408118&partnerID=8YFLogxK
U2 - 10.1109/ICMA.2019.8816500
DO - 10.1109/ICMA.2019.8816500
M3 - Conference contribution
AN - SCOPUS:85072408118
T3 - Proceedings of 2019 IEEE International Conference on Mechatronics and Automation, ICMA 2019
SP - 2389
EP - 2394
BT - Proceedings of 2019 IEEE International Conference on Mechatronics and Automation, ICMA 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 16th IEEE International Conference on Mechatronics and Automation, ICMA 2019
Y2 - 4 August 2019 through 7 August 2019
ER -
