The head of the group for environmental protection, noise and oscillation technology at the STUVA Inc., Dr.-Ing. Friedrich Krüger (Photo) celebrated his 65th birthday at the end of 2009.
Dr. Krüger commenced working for the STUVA in 1979. He was then appointed group leader in 1985. In 1989 he graduated at the TU Berlin with a dissertation on forecasting vibrations in rail tunnels.
At the STUVA he concentrates on noise and oscillations produced by transport routes in the following fields:
■ Noise and oscillation protection (research, expertises, recommendations, analyses in keeping with Schall 03 etc.),
■ Issues and problem complexes relating to track superstructures,
■ Measuring rail roughness (and wheel roughness) and the decay rate of track oscillations,
■ Testing track elements on the test stand and in the field,
■ Testing road surfaces (together with embedded rails) on the STUVA test circuit.
During his many successful years of activity for the STUVA he initiated and accompanied numerous research projects dealing with these topics on an international scale.
Dr. Krüger has written a large number of articles in specialist journals and published various reference books and teaching manuals on noise and oscillation protection. For instance he was responsible for the VDV’s “Handbook on Noise and Vibrations in Rail Transportation”, which is cited for instance in many requirement specifications for trackbound vehicles that have to be procured. Together with 7 co-authors he published “Noise and Vibration Protection in Rail Traffic”; now in its second edition published by the Expert Verlag.
Dr. Krüger chairs and is responsible for major parts of the seminar “Noise and Vibration Protection for Railways (refer to the following) held by the Technische Akademie Esslingen for many years now. He also belongs to various pertinent national and international committees and expert bodies. In 2005 Dr. Krüger received recognition from the EBA for his expertise in “engineering” covering the field of “noise and vibrations”.
Although Dr. Krüger would be able to retire after reaching the age of 65, he is currently involved in a large number of projects. He is engaged in producing expert reports for various courts and takes charge of research projects devised to cut down on noise development in tracks embedded in roads. In addition he carries out investigations on superstructures that are low in maintenance and also devotes his time to converting the STUVA test circuit to become suitable for accommodating the steel wheels of trams.
The board and the management of the STUVA would like to thank Dr. Krüger for his many years of engagement and hope that the years ahead will also result in more good cooperation.