Transient Relocation of Shaft Resonance to Safely Pass Critical Speeds (FWOSB32)

This research mandate will investigate whether excessive vibrations, that typically occur during a run-up and coast-down of a high-speed rotating machine, can be avoided by displacing resonance modes (leading to destructive vibrations) using temporal stiffening or weakening of the support system of the shaft. This is an innovative way to avoid vibrations that else would occur for a run-up of a machine if no damping can be added to the system. The project will focus on the response of such a rotating machine during these stiffening or weakening transients and check whether it is indeed possible to carry out these transients in a safe and durable way.

Keywords:Vibrations, mechanics

Disciplines:Other mechanical and manufacturing engineering not elsewhere classified