학술논문
Study on vibration characteristics of rotor-bearing system with gyroscopic effect
Document Type
Conference
Author
Source
2011 International Conference on Electrical and Control Engineering Electrical and Control Engineering (ICECE), 2011 International Conference on. :3198-3202 Sep, 2011
Subject
Language
Abstract
The transverse vibration characteristics of rigid rotor-bearing system was studied with the gyroscopic effect taken into consideration which was arosed by unsymmetrical bearings. And its transverse vibration equation considering the gyroscopic moment and fluid force was established. The stability condition for the system's vibration and critical stability rotational speed's concrete expressions were deduced. Then for different structural parameters, the system's vibration characteristics were discussed. The simulation indicates that when the rotor is considered as a rigid cylinder and its ratio of slenderness is 1.5, the transverse free vibration under gyroscopic effect always is stability. The result could give technical support to the structural design and optimization of rotoring machine and is useful for controlling rotors' vibration and reducing structural noise.