Abstract
In this work, the effect of flexible coupling nonlinearity on the unbalanced rotor response is investigated. A mathematical model that accounts for the lateral-torsional vibration coupling through two transformation matrices is employed. The linear model is simulated for the case when the lateral rotor natural frequency is equal to the rotor torsional natural frequency. The startup simulation result shows two resonance points, the system lateral natural frequency and at twice the natural frequency. The nonlinear model simulation (i.e. nonlinear torsional coupling stiffness) shows reduction of the amplitude at the second resonance which occurred at around 1.8ωL. The results indicate that the nonlinear coupling has an effect not only on the rotor torsional vibrations, but also on the lateral vibration induced by the torsional vibration.
| Original language | English |
|---|---|
| Pages (from-to) | 119-125 |
| Number of pages | 7 |
| Journal | American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP |
| Volume | 409 |
| State | Published - 2000 |
ASJC Scopus subject areas
- Mechanical Engineering