The dynamic stability of a rotating shaft subjected to axial periodic forces varying with time is studied by the finite element method. By using Timoshenko beam theory the transverse shear effect is included in the shape functions. Bolotin's method is used to construct the dynamic instability diagrams for various values of the rotating speed and different end conditions of the shaft. Due to the effect of the gyroscopic moment, the boundaries of the regions of dynamic instability are shifted out and the sizes of these regions are increased as the rotational speed increases.
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Mechanics of Materials
- Acoustics and Ultrasonics
- Mechanical Engineering