Company:Scania Products:Actran Acoustics Industries:Automotive | Overview: Having a pleasant driving experience is a key determinant
when purchasing or driving a vehicle. For companies buying
trucks and for truck drivers, it is also a matter of health and
productivity. Most drivers spend more than 8 hours a day in
the truck cabin. High noise levels or unpleasant sounds in a
working environment are known to cause excessive fatigue and
health problems. It is therefore crucial for truck manufacturers
to carefully design their new products and shape the cabin
noise to go beyond the requirements of their customers, and
propose the most enjoyable driving experience possible. Results Validation: Scania aims to increasingly utilize Actran’s
simulations results to compare different
designs and define the design directions
early in the product development cycle,
without the need for physical testing. To
support this decision-making process, a
listening studio was built at Scania. The
studio is similar to that of a professional
mixing studio. It encompasses a 7.1
surround system for sound and is designed
to produce exactly the same listening
experience for anyone who is seated in
the center of the room. During subjective
evaluation sessions, Per-Olof conveys to
his fellow colleagues his findings based on his simulations. He combines test and
simulation data to replicate the environment
of driving an actual truck. This process
helps managers to make important
decisions, which will affect the design of
the cabin. “It is a very different response
from management when you can play a
sound and they can have this subjective
experience,” Per-Olof said. “It’s not really
possible to understand from a graph what
you will hear in the truck,” he explained. Benefits: Enhancing the design of the truck to prevent the negative effects of Cabin Noise | ![]() ![]() ![]() |