4. Other vibration studies

We do not go into detail here, and refer the reader to the relevant articles in Techniques de l'Ingénieur.

• Rotors

  Depending on rotation speed, the rotor can be considered rigid or flexible.

  • Rigid: bearings are represented by stiffeners and dampers: see article .

  • Flexible: this raises the question of :

  • bending vibration, which will be the case for machines transmitting quasi-constant torques