In Machine Mechanics Centre there are operating three groups:

• Mechanics of Intelligent Structures Department
• Rotor Dynamics and Slide Bearings Department
• Aeroelasticity Department

Department conducts works in the area of machine dynamics and in particular of the thermal fluid-flow machinery. The models developed on the basis of finite elements are being used for modelling of real objects. Investigations are concentrated on the vibration problems, strength and life span of the construction elements of steam turbines (blades, rotor discs, bodies). The models have been developed with account of the real object operation conditions. The Department developed original models of damaged machine elements (for example containing fatigue cracks). Additionally, in the Department conducted are the works in the area of statics and dynamics of composite constructions. These works are dealing with the composites having controllable mechanical properties (where the reinforcing elements with the shape memory are used). Conducted are also investigations of the dynamics of composite constructions with typical damages (cracks, delaminations, etc).

The research interests are also focused on the problems of non-linear theory and numerical analysis of shell structures, including the non-regular shells with material defects. Additionally conducted are the investigations of the dynamics (free vibrations, excited vibrations and self-excited vibrations) of the strength of the blade systems and rotors of steam turbines with account of operation conditions. The final stream of investigations is a multi-scale and geometrical modelling of solids with microstructure, including amongst the others the problems of martensitic transformation, cracks, friction, fatigue and damages.

Department conducts its scientific activities in the area of modelling of dynamical interactions taking place in subsystems of the type: line of rotors - slide bearings - supports- foundation. Developed have been spatial models of heat transfer in bearing nodes and non-linear methods of description of such system. A non-linear description enables application of developed tools to the diagnostic purposes by the model of large power industry objects. Modelled are the defects in the operation of assumed objects and then constructed are the relations of the defect-symptom type. The Department conducts also works of a wide utilitarian character for industry (extension of expert systems data bases, calculation of anti-vibrational bearings characteristics, analysis of the dynamical state of various types of rotating machinery.

Departement focuses its activities in the field of aeroelasticity and structural calculations of turbomachinery components and constructions.

Activity of the Centre for Mechanics of Machines is available as a PDF files, since the year 2000.

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