Engineering Acoustics

Sound and vibration is of great concern for humans, society and industry. Our research and education aim to increase knowledge and understanding about sound and vibration phenomena for optimization, requirements and measures adapted to different needs and conditions.

The research is mainly conducted in projects linked to automotive industry, built environment and process industry. Education is conducted within Civil Engineering, Architecture, Industrial Design Enginering and Audio Engineering.

The research subject, founded 1989, has produced 20 doctoral dissertations. Today, the research team consists of 5 seniors and 2 doctoral students.

Bubbles. Image source: Creative Commons

Environmentally friendly new method for washing clothes

Örjan Johansson, professor in Engineering Acoustics at Luleå University of Technolgy, will in collaboration with the company Ozoneair try to develop a completely new and perhaps revolutionary method for washing. By combining ozone and ultrasound in a washing ball, the idea is to release "superpowers" that make the laundry extra clean in an environmentally friendly way.
Örjan Johansson

In the media: Research at LTU can make the car tires of the future quieter

"Tires sound and can be disruptive. Winter tires are debated and we have worked a lot with these." says Örjan Johansson who is a professor of technical acoustics at LTU.
Juice - Wikimedia Commons

In the media: Ultrasound + juice = delicious?

Örjan Johansson, professor in Engineering Acoustics at Luleå University of Technology, is currently working on tests where ultrasound is "pushed" towards fiber in juice - you want to get better taste and retain nutrients.
Microb

Sweet music for microbes

In a new research project, researchers from Luleå University of Technology will investigate how microorganisms in biochemical processes reacts to different sound; audible sound and ultrasound. This is a unique experiment involving two research subjects at the university, Biochemical Process Engineering and Engineering Acoustics.

Gränsöverskridande konst

Innovative art and science

Art can evoke emotions and touch us – make us ask questions, create well-being, or provoke.Art can also help us to communicate experiences and information.When art meets technology, the creativity that exists within each area can together provide new opportunities to solve complex problems.

Lab vid Institutionen för samhällsbyggnad och naturresurser

Sound & Vibration LAB

Advanced equipment and dedicated environments for sound and vibration analysis.
Article in journal
2020
CFD Analysis of Turbulent Fibre Suspension Flow
Shankar. V, Lundberg. A, Pamidi. T, Landström. L, Johansson. Ö
Fluids, Vol. 5, nr. 4
Article in journal
2020
Comparison of two different ultrasound reactors for the treatment of cellulose fibers
Pamidi. T, Johansson. Ö, Löfqvist. T, Shankar. V
Ultrasonics sonochemistry, Vol. 62
Report
2020
Ljudisolering i KL-träbaserade bjälklag och väggar samt förband
Slutrapport
Ljunggren. F
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Published:9 January 2014
Updated: 24 October 2019
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