AIN Staff

ITT has been quietly developing technology to reduce aircraft cabin noise levels, primarily through the use of cabin interior isolators. 
The White Plains, N.Y.-based company promoted its latest products at the recent Business Jet Interiors World Expo in Cannes, France, claiming that in some cases the ITT elastomeric devices that attach the cabin interior to the airframe have reduced noise by up to 6 dBA. These same isolators are standard in the Boeing 787.
“ITT does not simply place an elastomer between the frame of the aircraft and the interior, an approach that can lead to amplification of noise,” said Jeff Weisbeck, director of product management for ITT’s Enidine division. 
The firm’s engineers also study the system and develop isolators that cope with noise attenuation at critical frequencies of hearing–between 1,000Hz and 4,000Hz–and they work with the customer’s assembly team to ensure that the isolators incorporate quick-attach features that accelerate installation of the aircraft interior.

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