Research

The Engineering Dynamics working group deals with the modelling and analysis of dynamic processes in mechanical systems. The focus is on the behaviour of solids under the influence of multiphysical interactions, with an emphasis on linear and nonlinear oscillations, stability and branching problems. The methods used range from classical analytics to FE modelling of multiphysical problems and multi-body simulation.

Currently, the focus is primarily on application examples from machine dynamics, energy technology, drive technology (incl. e-mobility) and acoustics. However, the FG is oriented towards fundamental and methodological research, which is why there is no restriction in principle to certain fields of application.

The current focus is on the modelling and analysis of nonlinear vibrations in mechanical systems with multi-physical interactions. The emphasis is on questions of machine and rotor dynamics as well as tribology. Examples of current research are:

• Friction-excited vibrations (e.g. brake noises, commutator brushes, etc.)
• Nonlinear dynamics of systems with non-smooth dissipation (joints)
• Rotor dynamics with electromechanical interactions (electric motors)
• Stability of rotors under the influence of turbulent fluid seals, gas bearings, fluid bearings
• Movements of fluid-filled containers ("sloshing")
• Nonlinear model order reduction
• Quasi-periodic oscillations
• Inductive damping of structural vibrations
• Algorithms for path continuation of equilibria, periodic and quasi-periodic solution branches
  (CoSTAR Matlab Toolbox)