“One of the advantages of VA One for automotive 
applications is the ability to quickly start with 
the evaluation of simple yet useful conceptual models 
and progress through the evaluation of increasingly 
more sophisticated models as the design evolves.  
VA One can provide critical design assessments well 
before prototype vehicles are available such that 
proper noise control measures can be efficiently 
incorporated into the design; rather than 
inefficiently added as bandaids late in the program”

LEAR CORPORATION

“Even with JM’s extensive testing capabilities, the 
next generation of acoustical solutions require 
sophisticated modeling techniques.  ESI’s 
vibro-acoustics software compliments our experimental 
facility proving the ideal tool for a broad spectrum 
of projects ranging from building construction to 
aerospace acoustics” 

JOHNS MANSVILLE

“Boeing Integrated Defense has been a long term and 
successful AutoSEA2 user, and now has the capability of 
implementing all of the common vibro-acoustics analysis 
techniques, which are integrated into a single software 
package. The combined tools provide an efficient analysis
environment when performing analysis to support Space 
Shuttle and International Space Station requirements. 
VA One is a standard software tool for Boeing Integrated 
Defense vibroacoustic analysis, and it is used to 
support a variety of other business activities”

Ed O'Keefe, Associate Technical Fellow,
BOEING INTEGRATED DEFENSE.

“Hybrid FE-SEA analysis is a real leap forward when 
it comes to acoustical modeling technologies and is 
likely to set the standard for industrial computational 
acoustics of large structures for the future. The 
innovative integration of FE and SEA methods within 
one model allows the user to solve problems that cannot 
be addressed by applying SEA or FE methods separately" 

Ulf Orrenius, Senior Specialist : Acoustics and Vibration
BOMBARDIER TRANSPORTATION 

“VA One is intuitive and straightforward to use.  I was 
able to complete a detailed, coupled Boundary Element 
analysis the first time that I used the code”

Jeffrey Larko, Aerospace Engineer Structural Dynamics
NASA GLENN RESEARCH CENTER

“The ability to simulate noise levels helped the engineers 
involved in the project consider the impact of their 
decisions on noise early in the design process, Engineers 
evaluated the impact of different types of absorptive 
materials and traded off their benefits against their 
costs. They quantified the impact of main paths and 
flanking paths so that they didn’t waste money reducing 
main paths in situations where the flanking paths would 
be controlling. The result was that noise on  the 
Cascadia tractor was reduced by 5 to 6 dB below the 
previous generation and tests show that the Cascadia 
is one of the quietest cabs in North America.”

Craig Birkett, Product Validation/Engineering Analysis
FREIGHTLINER LLC

“By using ESI’s vibro-acoustic software we were able to 
obtain up to 15 dB reduction in the interior sound 
pressure levels in one of our vehicle platforms.  The 
software is now used in production as part of our 
standard vehicle design process” 

Kazuki Fukui 
NISSAN MOTOR COMPANY

“Ensuring that our structures survive the harsh
environments encountered during launch and liftoff is 
essential to our missions. Using VA One we can now 
predict the dynamic stress, strain and force in key 
components.  This will help us to ensure that our 
structures are qualified for the acoustic and vibrational 
environments encountered during launch and liftoff”. 

Ben Tsoi, Senior Dynamics Environmental Engineer
NASA JET PROPULSION LABORATORIES