Dynamic characteristics of flow induced vibration in a rotor-seal system

Issue title: 2nd International Conference on Vibro-Impact Systems (ICoVIS), Sanya, China, 6–9 January, 2010

Article type: Research Article

Authors: Zhang, Nan | Liu, Ying | Chu, Fulei

Affiliations: Department of Precision Instruments and Mechanology, Tsinghua University, Beijing, P.R. China

Note: [] Corresponding author. E-mail: [email protected]

Abstract: Flow induced vibration is an important factor affecting the performance of the rotor-seal system. From the point of view of flow induced vibration, the nonlinear models of the rotor-seal system are presented for the analysis of the fluid force, which is induced by the interaction between the unstable fluid flow in the seal and the vibrating rotor. The nonlinear characteristics of flow induced vibration in the rotor-seal system are analyzed, and the nonlinear phenomena in the unbalanced rotor-seal system are investigated using the nonlinear models. Various nonlinear phenomena of flow induced vibration in the rotor-seal system, such as synchronization phenomenon and amplitude mutation, are reproduced.

Keywords: Flow induced vibration, rotor-seal system, synchronization phenomenon, amplitude mutation

DOI: 10.3233/SAV-2010-0601

Journal: Shock and Vibration, vol. 18, no. 1-2, pp. 139-146, 2011