The annoying noises from the neighbor’s apartment, the sounds of cars passing by, and even lawnmowers keep many of us awake at night. This may soon change due to the Swedish invention based on the use of a spring. It can change a lot in terms of construction.
Håkan Wernersson from the Department of Materials Science and Applied Mathematics at Malmö University, in collaboration with an audiologist, has developed a noise-absorbing screw. The solution can change a lot in terms of construction, because it allows you to halve the amount of sounds that get to us, and also allows you to avoid some problems with improper sound insulation. Lab Tests He showed that the invention allows to reduce the noise level by 9 dB, which means that the recorded sound is reduced by half compared to standard screws.
sound absorbing screw
The screw can be used when installing plasterboard on walls. Then a layer with insulating properties is no longer needed. Thanks to this, we can save space in the room by reducing the thickness of the materials used. This is especially good news for people who do not have their own apartment or large house.
In addition to absorbing It seems Swedish screws allow gypsum boards to be fixed to wooden elements on the wall. The springs placed in them cause sound waves transmitted through the walls, along the wooden joists, to refract on the screws, as a result of which people in the room do not feel the noise.
In the case of this invention, the business model is based on giving companies the right to produce and/or sell the screw. Wernersson and colleague Raimo Issal are now looking for more companies willing to test the product on a slightly larger scale. Doing more experimental projects will allow you to check how screws behave in everyday life and how they can be improved.
See also: Climate change: we’ll listen to them thanks to devices that record Earth’s vibrations
Karolina Modzilowska, journalist at Wirtualna Polska
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