Research projects on Engineering Acoustics
The research is primarily focused on sound and vibration quality in vehicles, residential and work environments; acoustic optimization of timber structures; as well as process intensification by acoustic cavitation.
Current projects
-
Innovative acoustical design for the multi-storey wooden buildings of the future
In this project, the previous studies within the AkuTimber project are intensified to find innovative construction solutions that enable good sound insulation of low frequencies in wood-based multi-family houses. Structural and/or airborne resonators, installed inside the floor, will be studied. In ...
-
Purpose-based sound insulation in buildings with a frame made of CLT
The project focuses on modelling and developing building systems based upon cross-laminated timber (CLT), from a sound insulation perspective. The goal is to present a variety of solutions to be used for schools, offices and homes respectively. Each category is assigned three different suggestions d...
-
AkuTimber – Low-frequency sound insulation in wooden buildings
In this project, the work comparing measured sound insulation parameters with survey responses based on residents' experiences, continues. Impact sound insulation at low frequencies, 20–50 Hz, is in focus as previous projects (Aku20 and AkuLite) have shown its importance for wooden buildings. In add...
-
Sound insulation in CLT-based floors and walls, including junctions
The project focuses on further developing previously developed analytical models of sound insulation in double leaf configurations cross-laminated timber (CLT) by considering mineral wool in the cavity and letting a stud-wall form one part. Using this model together with other data, the acoustic per...
-
Sound waves are tested for degradation of PFAS
Researchers in Waste Science and Technology at Luleå University of Technology are testing various techniques for the degradation of the toxic substance PFAS. Researchers within Engineering Acoustics investigates if hydrodynamic and acoustic cavitation can give an efficient degradation of PFAS.
-
Ultrasonically controlled cavitation for sustainable production of viscous foods
In a collaborative project between Luleå University of Technology and Innovativa Drycker Balsgård AB, a new type of process based on hydrodynamic and acoustic cavitation is being developed. The goal of the project is the development of efficient equipment for the production of viscous foods and is f...
-
Innovative high wood residential buildings
Wooden based residential buildings have steadily increased in popularity over a number of years, and today they are often built with 4-8 floors. In the industry there is a demand to build "real" high-rise buildings in wood, visionary over 20 floors.
Completed projects
-
A New Innovative Environmental Friendly and Energy Efficient Fibre Treatment – CFD Investigation
Master Thesis
-
Intensified and sustainable leaching by acoustic and hydrodynamic cavitation
Master Thesis
-
Environmentally friendly new method for washing clothes
Örjan Johansson, professor in Engineering Acoustics at Luleå University of Technolgy, will in collab...
-
Modelling of sound insulation in floors
The project is part of a very important initiative to cope with the upcoming tougher regulatory requ...
-
Wall soundproofing
In the project, some exterior wall constructions have been chosen from the types of completely light...
-
Measurement and development of lightweight sandwich panels
For several years, there has been a close collaboration with Isolamin AB in Överkalix.
-
AkuLite - Noise, vibration and failure of buildings with ease framework systems
Multi-storey block of flats based upon lightweight frames are becoming more common for reasons such ...
-
Aku20 – New improved building technique-neutral criteria for sound insulation evaluation
In this project a variety of measured sound and vibration parameters are compared with questionnaire...
-
Sound Quality
A product’s sound quality describes how well the sound is adapted to a specific goal and/or context ...
-
Rotor vibrations
Milling and other turning operations are common in the automotive and aerospace industry where large...
-
Studies of musical instruments
As a part of our research in sound quality, we are running a project jointly with a saxophone manufa...
-
Friction induced sound of seals in cars in a cold climate
The purpose of this project is to improve the skills so that product quality is enhanced and ensured...
-
Measurement, identification, assessment and modelling of winter tyre noise
The noise caused by studded winter tyres is normally more annoying than the noise from ordinary tyre...
-
New NVH* challenges in the development process of electric and hybrid vehicles
The objectives with the project are; to increase the understanding of how drivers and passengers per...
-
Sound design for 3D signal sounds in cars
The purpose with the research project is to investigate methods and evaluate technical solutions for...
-
Frequency Sweep Excitation Test Track
The behaviour of a vehicle and its parts changes with temperature. The effect of temperature will al...
-
Engine Noise Simulator
An ENS is a useful tool to investigate sound transfer paths and to simulate different engines quickl...