Active noise and vibration control
This project deals with the design process to develop integrated algorithms for direct and indirect ANVC for car industry, while combining control theory and relevant dynamic control object models. The understanding of effects related to various dynamical characteristics (such as flexibility, non-linearities, and response to different overlapping excitation), on the final design and on control synthesis is also stressed. Specific topics of interest are; modelling and simulation, model reduction, H2 synthesis, H2 synthesis and saturation, recursive estimation, and different actuator working principles. The Ph. D. project has been carried out in cooperation with Volvo Cars.
Currently, this topic is handled within a VR-financed project "Unsolved Problems of Active Vibration Control" targeting three unsolved control problems of Active Vibration Control (AVC):
- Active control of transient vibration
- Control-oriented reduction of lightly damped dynamic models with physical insight
- Recursive parameter estimation under time-varying excitation
Each of them belongs to a specific area of control theory but also appears in the crossdisciplinary area of AVC preventing effective system design. The underlying engineering problem is the reduction of structure borne vibration in mechanical, for instance automotive, systems and can be solved only via integration of design methods developed in mechanics and control.
Claes Olsson (employed by Volvo Cars, former Ph. D. student)