Prof. Jonas Brunskog, PhD
Adequate
sound insulation is important in buildings due to legal, comfort and
health reasons, the latter emphasized by WHO. The sound insulation of a
single homogenous wall is mainly given by the mass per unit area, the
mass law, leaving not much room for improvement. Economic pressure as
well as environmental demands of increased use of wood in buildings
leads to reduced weight, which thus might resulting in poor sound
insulation. However, there are also certain aspects that talk in favor
for the use of wood constructions.
In
his lecture, Dr. Brunskog will review the acoustic challenges and
possibilities when building with timber constructions. Timber
constructions are used in both old traditional floor constructions in
many countries, and in new innovative buildings with high sound
insulation. Most traditional as well new timber floor constructions are
spatially periodic, which will lead to periodic effects such as pass-
and stop bands. In other areas of physics and engineering, such aspects
are used as metamaterials. Another branch of constructions where
innovative ideas are needed and are being used are CLT constructions.
About the speaker
Dr.
Jonas Brunskog is Associate Professor at the Acoustic Technology group
at the Department of Electrical and Photonics Engineering, at Technical
University of Denmark (DTU). He is a co-author of 55 scientific journal
articles, and more than 110 conference publications. His works have been
cited 1960
times (Google Scholar). He has supervised 10 completed PhD theses as
main supervisor, and 8 as co-supervisor. Scientific focus areas are:
General acoustics, Vibro-acoustics, Building acoustics, Room acoustics,
Numerical acoustics, Environmental acoustics, Signal processing, and
Voice research.