| |
In response to the challenge of acoustic comfort,
Faurecia has chosen not only to develop and produce innovative
materials and modular soundproofing
solutions, but to adopt a global approach to the field of acoustic comfort
by investing in some of the most powerful analysis and simulation tools
available. As a result the Group has become a genuine acoustics specialist
and is eager to make its expertise available to its customers by suggesting
new acoustic concepts or taking on acoustic studies on a customer's behalf.
This global, transversal approach extends beyond
the acoustic package
to Faurecia's other modules,
and forms an integral part of the overall strategy to reduce weight within
the vehicle. It takes into account both interior and exterior noise, and
includes "structure-borne" noise (from vibrating parts) and
"airborne" noise (e.g. exhaust, tires, air intake and powertrain),
as well as the noise made by components such as indicators. The HVAC and
window lifters. The frequency of the source and its transfer path through
the vehicle is analyzed.
Solutions are then studied in terms of insulation (in order to optimize
the transfer paths) and absorption (in order to optimize airborne dissipation
of noise).
The Acoustic Synthesis Method has been developed
by Faurecia's acoustics specialists in order to reproduce the sound of
a vehicle interior and therefore optimize the insulation and absorption
capacities of the acoustic package. It is a hybrid method, combining Statistical
Energy Analysis (SEA), ray-tracing technology and numerical simulation,
that enables models to be set up and validated very rapidly.
A key role in Faurecia's research
into acoustic comfort is played by the Center of Acoustic Technology in
Sassenburg, Germany. Its facilities include test chambers to analyse the
sound level of vehicles in all conditions, a psycho-acoustic laboratory,
and a range of software systems for simulating and analyzing acoustic
energy flows within the vehicle.
|
|
See
all Faurecia's Innovations
|
