Re: Odhlučnění místnosti
Napsal: 28.03.2022 10:45
Nepomohly by nějaké zástěny z těžkého materiálu (dělají se desky plněné pískem) přímo kolem strojů? Něco na způsob zvukových stěn kolem silnic (i když tam se asi tak nízké frekvence neřeší...). Případně postavit hlukovou stěnu vně haly.
https://www.advanced-noise-solutions.co ... se-at-work
"5) Install a Noise Barrier
Noise barriers are not very effective inside factories because sound is reflected off the ceiling then down towards the ground on the opposite side of the barrier. Barriers are more effective outside buildings. Inside a factory their effectiveness depends on the machine layout, ceiling height and location of the noise barrier.
For example, if there are noisy machines at one end of the factory and quiet operations at the other end, a noise barrier could reduce the noise by about 5 - 7 dBA. This noise reduction applies on the quiet side of the sound barrier. On the noisy, machine side, there would be no noise reduction. In fact, the noise can increase on this side unless the barrier incorporates suitable sound absorbent material. This is because the noise reflected from the barrier adds to the noise transmitted from the machine, increasing the total noise level. So a noise barrier would not reduce noise close to machines, which is where workers are normally located. This means a noise barrier would not normally reduce workers' noise exposures."
https://www.advanced-noise-solutions.co ... se-at-work
"5) Install a Noise Barrier
Noise barriers are not very effective inside factories because sound is reflected off the ceiling then down towards the ground on the opposite side of the barrier. Barriers are more effective outside buildings. Inside a factory their effectiveness depends on the machine layout, ceiling height and location of the noise barrier.
For example, if there are noisy machines at one end of the factory and quiet operations at the other end, a noise barrier could reduce the noise by about 5 - 7 dBA. This noise reduction applies on the quiet side of the sound barrier. On the noisy, machine side, there would be no noise reduction. In fact, the noise can increase on this side unless the barrier incorporates suitable sound absorbent material. This is because the noise reflected from the barrier adds to the noise transmitted from the machine, increasing the total noise level. So a noise barrier would not reduce noise close to machines, which is where workers are normally located. This means a noise barrier would not normally reduce workers' noise exposures."