Prof. Dr. Peter Benner will join the CDS Board of Directors on August 1, 2021. He replaces Prof. Dr. Rolf Findeisen as a member of the Board of Directors.

In this work C. Himpe, S. Grundel and P. Benner develop a transient gas network simulation model, test multiple adapted system-theoretic as well as data-driven model reduction algorithms, and compare model-solver-reductor ensembles.

This paper by P. Benner (CSC), S. Gugercin (VT) and S. W. R. Werner (CSC) extends the framework for structure-preserving interpolation of regular subsystem transfer functions of structured bilinear control systems to the parametric system case. It got published in Automatica, a Journal of IFAC.

Thermal effects are the most dominant source for displacements in machine tools and thus work-piece inaccuracies during the manufacturing process. A promising strategy to meet the ever-increasing accuracy requirements is the use of predictive models for, e.g., parameter and design optimizations or online correction of the thermally induced error at the tool center point (TCP) in the production process. However, these techniques require fast but precise simulations. The need for high model accuracy is in direct contrast to the desired real-time capabilities. Model order reduction (MOR) is an attractive tool to overcome this problem. A modeling toolchain, which is tailored for the effective construction of fast and accurate models is proposed and demonstrated, emphasizing the involved MOR step.

Prof. Dr. Alexander Zuyev, Senior Scientist in the research group Computational Methods in Systems and Control Theory, has been elected as Corresponding Member of the "Department of Mathematics" of the National Academy of Sciences of Ukraine.