436-406 Rotor Dynamics

Credit Points

Coordinator

Prerequisites

436-306 Dynamics of Machines and 436-402 Mechanics and Dynamics of Solids

Semester

Contact

Subject Description

On completion students should; be able to formulate mathematical models of machine sub-systems (shafts, bearings, rigid and elastic elements, foundations); be able to create a mathematical model of a complex rotor - bearing - foundation system including the dynamic properties of its sub-systems, unbalanced forces, environmental excitation and accuracy of manufacturing; be able to carry out analysis of the formulated mathematical models to assess equilibrium positions, critical speeds and stability of motion of the rotor system.

Topics covered include; modelling of shafts, rigid and elastic elements, oil bearing and foundations. Composition of mathematical model of rotor systems. Condensation techniques. Analysis: equilibrium position, response to the external excitation, free vibration, stability of equilibrium position. Influence of internal and external damping. Influence of the gyroscopic effect. Rotors with non-circular cross-sections.

Assessment

One examination not exceeding three-hours, written work which may comprise assignments and reports on practical work up to 20 pages. The relative weighting of the assessment components will be published at the commencement of the subject