Dynamic characteristic analysis of the elastic ring squeeze film damper-rotor system considering coupling angular misalignment

• Published in: Nonlinear dynamics Vol. 113; no. 4; pp. 3201 - 3226
• Main Authors: Luo, Zhong, Liang, Baobing, Sun, Kai, Li, Lei, Hao, Haotian, Wu, Xuanrui
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer Nature B.V 01.02.2025
• Subjects: Accuracy; Aerospace engines; Bearings; Coupling; Dynamic characteristics; Elastic analysis; Engines; Impact analysis; Mathematical models; Mechanical engineering; Misalignment; Pressure distribution; Rotors; Squeeze films; Systems stability; Thermal instability; Vibration

Elastic ring squeeze film damper (ERSFD) has been extensively utilized in aero-engines due to its superior ability to suppress vibrations. However, during the operation of aero-engines, misalignment faults can occur owing to manufacturing and installation inaccuracies, rotor flexibility, thermal ins...