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Lowering the noise
Mike Brock, Product Manager, Rogers Corporation/High Performance Foams Division, discusses how engineered specialty materials help create a quiet cabin
A quiet and comfortable passenger experience is a growing focus for next generation commercial aircraft manufacturers. Both the airlines and OEM’s are keenly aware of the importance of differentiating their interior experience for passengers particularly on long-haul routes. While offering a safe, quiet and comfortable passenger ride is becoming a design imperative, it is presenting some challenges for design engineers.
designers. New materials and techniques are now required to ensure a quiet cabin and address the different acoustic performance of composite materials. Rogers Corporation developed its BISCO®
A2 Sound
Barrier in partnership with a commercial aircraft OEM. This material was specifically designed for aircraft applications to meet the strict flammability, toxicity, durability and mechanical requirements of the industry. The material is extremely reliable in passing stringent aircraft testing including the radiant panel FAR25.856 (a) test. This engineered solid silicone material is a thin, flexible and durable material used to block out noise (for example from the aircraft engine or boundary layer air flow over the fuselage) and can be added to a insulation package or adhered to interior panels. Recently, Rogers Corporation improved the BISCO®
A2
specialty material. The original A2 Sound Barrier was launched in 2008, but enhancements in formulation and processing have allowed Rogers to improve the mechanical strength (tensile strength) and durability. These enhancements allow the BISCO®
A2 and the A2R
A2R (“reinforced”) material
to be used in more places throughout the interior and also for the acoustic insulation package. BISCO®
material are available in 1.0 kg/m2 to 8.2 kg/m2 surface weights, with or without a fibre-glass reinforcement layer. Rogers Corporation is a global technology leader in specialty materials for aircraft interiors. With over 175 years of materials science knowledge, the company has provided reliable solutions to the aircraft industry for decades. Mike Brock, Product Manager for Rogers Corporation BISCO® Silicones, explains that: “as a materials technology leader, we’ve partnered with aircraft manufacturers and tier suppliers to develop industry leading material solutions to address specific design needs; BISCO®
A2 and the A2R are excellent
The next generation aircraft are taking technology to new heights integrating more and more composite material in the fuselage and other interior spaces. This composite material is replacing aluminium and other metals traditionally used on commercial aircraft in order to reduce overall aircraft weight. The composite material is accomplishing the goal of reducing weight, but is presenting other challenges for interior acoustic
examples of that.” As the aircraft industry evolves there will continually be new technologies (such as composite material) that will solve one issue and present other challenges for interior design engineers. BISCO®
A2 from Rogers Corporation is an
example of how engineering a material for a specific application can solve a design issue and ultimately help create a quieter and more comfortable passenger experience.
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