{"id":15830,"date":"2023-02-02T12:48:35","date_gmt":"2023-02-02T12:48:35","guid":{"rendered":"https:\/\/dampa.com\/?p=15830"},"modified":"2024-06-18T13:16:27","modified_gmt":"2024-06-18T13:16:27","slug":"metal-er-robust-og-skaber-overraskende-god-akustik","status":"publish","type":"post","link":"https:\/\/dampa.com\/da\/metal-er-robust-og-skaber-overraskende-god-akustik\/","title":{"rendered":"Metal er robust – og skaber overraskende god akustik"},"content":{"rendered":"

At h\u00e5rde metaller i det rette design kan skabe blid akustik, kommer bag p\u00e5 de fleste. Men det er ikke desto mindre tilf\u00e6ldet, lyder det fra DAMPA, der gennem de sidste 70 \u00e5r har udnyttet princippet til akustikl\u00f8sninger.<\/strong><\/p>\n

F\u00e6rger, broer, gravemaskiner og lokomotiver. De er alle bygget i st\u00e5l, fordi st\u00e5l er st\u00e6rkt som bare pokker, og kan t\u00e5le lidt af hvert. Men at st\u00e5l ogs\u00e5 har engleblide egenskaber, der kan d\u00e6mpe u\u00f8nsket st\u00f8j og skabe harmoniske omgivelser, kommer bag p\u00e5 de fleste. Men det er ikke desto mindre tilf\u00e6ldet.<\/p>\n

I hvert fald, hvis man perforerer st\u00e5let og f.eks. kombinerer det med akustikfilt – pr\u00e6cis som den fynske virksomhed DAMPA har gjort det med succes i efterh\u00e5nden halvfjerdsindstyve \u00e5r:<\/p>\n

Det er korrekt, at det virker u-intuitivt, at et h\u00e5rdt metal som st\u00e5l, kan skabe god akustik,<\/p><\/blockquote>\n

fort\u00e6ller akustiktekniker hos DAMPA, Miki Hendriksen.<\/p>\n

Tvivlen forsvinder<\/h2>\n

Han har ofte forklaret sammenh\u00e6ngen for folk, der har forelsket sig i st\u00e5lets designfrihed og robusthed, og som bare er en smule usikker p\u00e5 den overraskende akustiske effekt.<\/p>\n

Men det er en usikkerhed, der forsvinder, siger Miki Hendriksen:<\/p>\n

Den mest effektive m\u00e5de, at overbevise folk p\u00e5, er, egentlig at lade dem lytte og opleve med deres egne \u00f8rer.<\/p>\n

 <\/p>\n

Jeg kan sagtens komme med en lang teknisk forklaring om trykb\u00f8lger og forskellige absorbenttyper, men n\u00e5r folk selv har oplevet vores akustikpaneler, er ingen i tvivl,<\/p><\/blockquote>\n

siger han og peger specifikt p\u00e5 de to v\u00e6gl\u00f8sninger,\u00a0DAMPA Silent Board<\/a><\/span>\u00a0og\u00a0DAMPA Silent Board Flex<\/a><\/span>.<\/p>\n

Komplekst – men effektivt<\/h2>\n

Og at Miki Hendriksen helst vil have folk til selv at lytte med, kan man egentlig godt forst\u00e5.<\/p>\n

For hemmeligheden bag, kan let blive en smule kompleks:<\/p>\n

Det f\u00f8rste, lyden m\u00f8der, er den specialperforering, vi har tilf\u00f8rt metalpladen, og som skaber en resonans-absorbent i kombination med en membran-absorbent.<\/p>\n

 <\/p>\n

Derefter finder lyden vej gennem hullerne, og der opst\u00e5r svingninger, som medvirker til at absorbere selv lavfrekvent lyd.<\/p><\/blockquote>\n

Til sidst, n\u00e5r lyden er tr\u00e6ngt helt ind i panelet, m\u00f8der den en bl\u00f8d por\u00f8s-absorbent, der f.eks. kan best\u00e5 af akustikfilt eller -batts, afh\u00e6ngigt af rummet og den m\u00e5de, det benyttes p\u00e5.<\/p>\n

Dermed opn\u00e5r vi akustikl\u00f8sninger i klasse A, s\u00e5 akustikken let kan tilpasses rummets brug, og dermed ogs\u00e5 l\u00f8sninger, som holder i rigtig mange \u00e5r.<\/p><\/blockquote>\n

lyder det fra Miki Hendriksen.<\/p>\n

Akustik og design i s\u00e6rklasse<\/h2>\n

DAMPA Silent Board<\/a><\/span>\u00a0og\u00a0DAMPA Silent Board Flex<\/a>\u00a0<\/span>tilbyder et v\u00e6ld af designmuligheder. De akustiske v\u00e6gpaneler f\u00e5s i alle RAL- og NCS-farver, og der kan\u00a0digitalprintes<\/a>\u00a0direkte p\u00e5 panelerne. Endelig kan perforationen laves i forskellige m\u00f8nstre, s\u00e5 det akustiske- og designm\u00e6ssige udtryk bliver helt unikt.<\/p>\n

 <\/p>\n

Artiklen blev oprindelig bragt i Byggeri+Arkitektur – l\u00e6s den originale artikel her.\u00a0<\/a><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Akustik<\/p>\n","protected":false},"author":1,"featured_media":21435,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[168,192],"tags":[],"class_list":["post-15830","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-acoustic-da","category-byg"],"acf":[],"yoast_head":"\nMetal er robust - og skaber overraskende god akustik | DAMPA<\/title>\n<meta name=\"description\" content=\"At h\u00e5rde metaller i det rette design kan skabe blid akustik, kommer bag p\u00e5 de fleste. 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