TY - JOUR
T1 - Attenuation of the Amplitude Vibration Level by Using Nonlinear Active Control Techniques Applied to a Hybrid Short Journal Bearing Using a Particular Rotor-Bearing System Configuration
AU - Rivera-Arreola, D. E.
AU - Gómez-Mancilla, J. C.
AU - Hernández-Cortés, T.
AU - Abundis-Fong, H. F.
N1 - Publisher Copyright:
© 2020, The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Switzerland AG.
PY - 2020
Y1 - 2020
N2 - Inherent to turbomachinery are some common operational problems, such as the critical amplitude of motion that the machine may experience when passing through one or more of its natural frequencies. High range of vibration levels can be catastrophic to the equipment and its attenuation is needed to keep the system working healthily. To that end, the present work proposes the use of nonlinear active control techniques applied to a single hybrid short journal bearing using a particular rotor-bearing system configuration, which not require the assumption of an exact symmetry in the operation of the two journal bearings located at both ends of the rigid shaft such as the classical Jeffcott rotor model. The analysis is focused by reducing the amplitude shaft vibration of the rigid rotor crossing its first resonance. The oil injection port is modeled by mean of the Dirac Delta Function.
AB - Inherent to turbomachinery are some common operational problems, such as the critical amplitude of motion that the machine may experience when passing through one or more of its natural frequencies. High range of vibration levels can be catastrophic to the equipment and its attenuation is needed to keep the system working healthily. To that end, the present work proposes the use of nonlinear active control techniques applied to a single hybrid short journal bearing using a particular rotor-bearing system configuration, which not require the assumption of an exact symmetry in the operation of the two journal bearings located at both ends of the rigid shaft such as the classical Jeffcott rotor model. The analysis is focused by reducing the amplitude shaft vibration of the rigid rotor crossing its first resonance. The oil injection port is modeled by mean of the Dirac Delta Function.
KW - Dirac delta function
KW - Hybrid-short journal bearing system
KW - PID controller
KW - Reynolds equation
KW - State-space
UR - http://www.scopus.com/inward/record.url?scp=85085213164&partnerID=8YFLogxK
U2 - 10.1007/978-3-030-45402-9_18
DO - 10.1007/978-3-030-45402-9_18
M3 - Artículo
AN - SCOPUS:85085213164
SN - 2211-0984
VL - 86
SP - 179
EP - 192
JO - Mechanisms and Machine Science
JF - Mechanisms and Machine Science
ER -