Improvement of durability and safety of rotating systems by active vibration control

Aim of project
The project deals with problems related to vibration of rotating systems as well as methods of their control and stabilization. Rotating systems are exposed to self-excitation, resonance and transient state phenomena, which substantially influence their durability, energy consumption, noise emission and also undesirably affect accompanying machine elements and the environment. The interest in this field has recently grown due to the development of active methods of vibration control and damping as well as huge progress in the area of material engineering. Active composites and materials of specific magnetic properties open new possibilities toward reduction of vibration and improvement of durability and safety of rotating machinery. In the project, the problem of active vibration control of rotating systems, in particular, by making use of active laminates with piezoceramic fibers and hybrid magnetohydrodynamic journal bearings is examined. Five different but associated investigation tasks are realized, each being a separate and novel research challenge.

Expected results
A measurable result of the project will be international paper publications as well as numerous presentations at domestic and abroad conferences. Completion of two doctoral theses and preparation of a monograph on active methods of vibration damping and stabilization is also intended.