• Rolls-Royce produced animated films offering insight into how it developed it new Ghost.
• The luxury car brand delves into the unique engineering 'formula for serenity'.
• The car company sought feedback from current Ghost owners on what they desired from the new model.
Rolls-Royce, best known for producing the world's best cars and aeroplane engines, released a series of animated videos that provides insight into development for the next generation Ghost.
The company says it reviewed feedback from owners of the first Ghost and the high-end clientele were clear on wanting 'cocooning, near-silent acoustic properties'.
Many of the owners use their cars to relax in between meetings or even conduct business while being chauffeured. They operate in complicated business worlds and value the sense of calm and wellness that their Rolls-Royce creates.
The aim of the marque’s team of acoustic specialists were obsessively focussed on this highly complicated engineering task for the new Ghost.
Formula for serenity
So how did they go about achieving this? The acoustic team began by adapting the marque's proprietary aluminium spaceframe architecture, which itself offers benefits owing to the metal’s higher acoustic impedance compared with steel and its construction from complex forms rather than flat, resonant surfaces.
They opted for a double-skinned bulkhead section to insulate the cabin from famous 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.
In addition, double-glazed windows with a clear composite centre sheet were used as well as tyres lined with lightweight acoustic insulation foam.
New Ghost Acoustic Engineering Lead, Tom Davis-Reason, says: "The extraordinary acoustic quality of new Ghost is the result of significant engineering developments and fastidious attention to detail, but it really is underpinned by the marque’s proprietary aluminium architecture. There is simply no way we could have created such an acoustically refined environment using a steel platform."
To ensure the optimal environment is created in the new Ghost every component was obsessively interrogated for its acoustic properties.
Ant item that produced unacceptable levels of noise were discarded and completely redesigned at the Home of Rolls-Royce in Goodwood, West Sussex.
The attention to detail went so far as to smooth the air conditioning control ducts to better insulate from intrusive noises.
But wait a minute if all the noise was removed the cabin became disorientating the acoustic team discovered early on during testing. Their solution? To create a 'whisper' – a soft undertone that clients experienced as a single, subtle note.
To achieve this, 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 carmaker's experts named this exhaustive process the Formula for Serenity.
The team showed presented the acoustic advances they had made, and what would be available to clients in the upcoming Ghost. Rolls-Royce has elected to share elements of these internal briefings to demonstrate the engineering substance that underpins this extraordinary new motor car ahead of its official unveiling in Spring 2020.