{"id":4257,"date":"2017-03-23T13:54:11","date_gmt":"2017-03-23T13:54:11","guid":{"rendered":"https:\/\/vibratec.staging.westart.se\/?post_type=news&p=4257"},"modified":"2020-04-30T11:42:58","modified_gmt":"2020-04-30T11:42:58","slug":"constrained-layer-damping-on-old-steel-bridge","status":"publish","type":"news","link":"https:\/\/vibratec.staging.westart.se\/en\/news\/constrained-layer-damping-on-old-steel-bridge\/","title":{"rendered":"Constrained Layer Damping on old steel bridge"},"content":{"rendered":"

Step one is to investigate the noise radiation from the bridge structure, and the partial contributions from deck, girders, wheel\/rail contact etc. This involve vibro-acoustic modelling by Statistical Energy Analysis (SEA), lab testing of various CLD configurations at different temperatures, as well as similar CLD tests on a mock-up plus noise and vibration measurements on the actual bridge.<\/p>\n

See our film about how we dampened noise from commuter trains using Constrained Layer Dampening.<\/a><\/p>","protected":false},"excerpt":{"rendered":"

After a recent renovation of the 1929 \u00c5rsta bridge in Stockholm an increase of noise was observed. Vibratec Akustikprodukter AB has been awarded a multi-step project to mitigate the noise by use of constrained layer damping (CLD). <\/p>","protected":false},"featured_media":4285,"parent":0,"template":"","acf":[],"yoast_head":"\nConstrained Layer Damping on old steel bridge - Vibratec<\/title>\n<meta name=\"description\" content=\"Vibratec reduces noise on the \u00c5rsta bridge in central Stockholm. Using a techninque called constrained Layer Dampening (CLD). Noise lowered with 6 dB.\" \/>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Constrained Layer Damping on old steel bridge - Vibratec\" \/>\n<meta property=\"og:description\" content=\"Vibratec reduces noise on the \u00c5rsta bridge in central Stockholm. Using a techninque called constrained Layer Dampening (CLD). 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