Rolls-Royce revealed the final animated film offering insight into the substance of new Ghost ahead of its big reveal in fall this year. It showcases how the Marque’s team of acoustic specialists was focussed on achieving the extraordinary acoustic quality of new Ghost.
New Ghost will feature Rolls-Royce’s proprietary aluminum spaceframe architecture, which offers benefits owing to the metal’s higher acoustic impedance compared with steel and its construction from complex forms rather than flat, resonant surfaces. A double-skinned bulkhead section can insulate the cabin from the already near-silent 6.75-litre V12 engine and cavities in the roof, boot and floor were created to fill with more than 100kg of sound-absorbing materials. Furthermore, double-glazed windows with a clear composite centre sheet were used as well as tyres lined with lightweight acoustic insulation foam.
The components that produced unacceptable levels of noise were discarded and completely redesigned at the Home of Rolls-Royce in Goodwood, West Sussex. Even the inside of the air conditioning ducts were smoothed to better insulate the cabin from intrusive noises.
The acoustic team has also discovered that removing all noise was disorientating. They create a ‘whisper’ – a soft undertone that clients experienced as a single, subtle note, as a solution. Each component had to be tuned to a specific resonant frequency. This task included the creation of acoustically tuned damping units for the seat frames, as well as a suite of ports between the cabin and the large 500-litre boot to ensure the low frequency it generated was consistent with new Ghost’s ‘note’. The marque’s experts named this process the Formula for Serenity.
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