Structural Mechanics

Faculty of Engineering, LTH

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Vibrations in the Built Environment

The work by the research group at the Division of Structural Mechanics on Vibrations in the Built Environment is primarily driven by the need to understand physical phenomena and the desire to develop engineering solutions to vibration problems affecting stakeholders in the built environment. The research problems we are focusing on require a synergy of physical experimental testing and/or computational simulations based on applied mechanics and on applied mathematics.

Engineering applications

Our research can be applied to various vibration problems in the built environment. Below we have presented some of our work:

In the structural design process of The MAX IV Laboratory in Lund, Sweden, we made major contributions that focused on enabling a research facility that fulfilled the extreme vibration requirements that were set. We developed computational models and were able to suggest important engineering solutions that were implemented.

We have managed several large research projects where we aim at enable sustainable densified urban areas. To be able to achieve such areas, analyses of disturbing vibrations and noise must be in focus because the negative effect on people’s health the vibrations and the noise can have. We are establishing methods, involving both computational models and experimental results, for prediction of vibrations from tram- and rail-ways in buildings. Typical examples for the methods to be used for being construction of new residential buildings close to existing traffic lines, as well as construction of new traffic lines close to existing Buildings. During the last years, special attention have been put on multistory buildings in wood. 

We are also working on inverse modeling with focus on force reconstruction. The aim is to develop a method using measurement data obtained from experimental testing to create a system that is able to accurately predict the long-term resilience and vibratory performance of, for example, buildings or bridges.

Contact and further Information

For further information about this research area, please contact:

Dr. Peter Persson,, +46 46 222 8353

Professor Kent Persson,, +46 46 222 8152

Selected publications

Effect of material parameter variability on vibroacoustic response in wood floors
Peter Persson, Ola Flodén
Applied Acoustics 146:38–49, 2019.

A multi-level model correlation approach for low-frequency vibration transmission in wood structures
Ola Flodén, Kent Persson, Göran Sandberg
Engineering Structures 157:27–41, 2018.

Reduced order modelling of elastomeric vibration isolators in dynamic substructuring
Ola Flodén, Kent Persson, Göran Sandberg
Engineering Structures 155:102114, 2018.

Numerical study on reducing building vibrations by foundation improvement
Peter Persson, Kent Persson, Göran Sandberg
Engineering Structures 124:361–375, 2016.

Numerical study of reduction in ground vibrations by using barriers
Peter Persson, Kent Persson, Göran Sandberg.
Engineering Structures 115:18–27, 2016.

The effect of modelling acoustic media in cavities of lightweight building structures on the transmission of structural vibrations
Ola Flodén, Juan Negreira, Kent Persson, Göran Sandberg
Engineering Structures 83: 7–16, 2015.

Reduction in ground vibrations by using shaped landscapes
Peter Persson, Kent Persson, Göran Sandberg
Soil Dynamics and Earthquake Engineering 31;60:31–43, 2014.

Reduction methods for the dynamic analysis of substructure models of lightweight building structures
Ola Flodén, Kent Persson, Göran Sandberg
Computers & Structures 138: 49–61, 2014.

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