Abstract
Two eigen frequencies and two complex modes were given out for a spring-mass vibration system with two degrees of freedom in a centrifugal field. The eigen frequencies of the centrifugal vibration system are related to system rotating speed as well as to centrifugal softening and Coriolis force effects. Coriolis force leads to system vibration with complex modal vector and polarized circle motion of mass point, which is not a real physical damping, so does not produce attenuation of system vibration. Thus, the circle motion trajectory of mass point keeps always unchanged with the corresponding single complex mode of rotating system.
| Original language | English |
|---|---|
| Pages (from-to) | 44-46 |
| Number of pages | 3 |
| Journal | Zhendong yu Chongji/Journal of Vibration and Shock |
| Volume | 30 |
| Issue number | 6 |
| State | Published - Jun 2011 |
| Externally published | Yes |
Keywords
- Centrifugal softening
- Centrifugal vibration system
- Circle motion
- Complex modal vector
- Coriolis force