FFT, an MSC Software Company, Announces a New Release of Actran for Acoustic Simulation

Actran 16 delivers new advances for acoustic response in bigger domains and for higher frequencies

NEWPORT BEACH, Calif. — (BUSINESS WIRE) — November 18, 2015Free Field Technologies (FFT), an MSC Software company, today announced the release of Actran 16. The new release provides breakthrough technologies for achieving superior performance in acoustic, vibro-acoustic and aeroacoustic simulations.

Key highlights of the Actran 16 release include:

  • Acoustic propagation in huge domains and at high frequencies
  • New aeroacoustic modeling capabilities for fast virtual testing
  • Co-simulation with other MSC Software tools for multi-discipline analyses
  • Ease-of-use and performance enhancements

Acoustic propagations in huge domains and at high frequencies are now possible within a few hours thanks to the Actran DGM code which now supports GPU acceleration. This allows users to simulate cases that were previously difficult such as ultra-sonic parking sensors and a full truck exterior acoustic propagation at high frequency.

New aeroacoustic capabilities: this field typically relies on long and computationally expensive unsteady CFD simulations. Actran 16 features the new SNGR module which synthesizes the noise sources from inexpensive steady RANS solutions allowing users to perform many virtual tests within few hours. Actran 16 also features the pellicular mode decomposition, a unique technique which extends the well-known wave number decomposition for automotive side-window aeroacoustic analyses, for example. It is now possible to distinguish the acoustic and hydrodynamic contributions on non-rectangular and non-planar surfaces.

Co-simulations with other MSC software solutions: the Actran time domain solver has been improved both in terms of solution capabilities and its integration with other MSC Software codes. Now Actran can read Dytran output files for performing acoustic analyses of problems involving Fluid-Structure interaction such as noise of fluid in a tank. Moreover, the interface with Adams, the multi-body dynamics (MBD) solution of MSC Software, has been enhanced. Several ease-of-use improvements have been delivered allowing MBD engineers to directly access acoustic results and to listen to their design thanks to audio files automatically generated.

Many ease-of-use and performance enhancements have also beendevelopedin thissoftware release. Specifically, the graphical user interface and its meshing tool include several new features allowing the rapid creation and manipulation of vibro-acoustic meshes. Moreover, the adaptive meshing technology has been further extended. This technology automatically generates optimal meshes for vibro-acoustic simulations allowing a drastic reduction of the computational time when compared to typical acoustic simulations. Actran has also been enhanced with optimization capabilities. This feature, combined with the scripting capabilities of the graphical user interface, allows performing topological optimization easily and quickly.

“Actran 16 delivers a valuable set of features to the industry,” said Benoît Van den Nieuwenhof, CTO at FFT. “The SNGR feature gives users access to new capabilities like full car exterior aero-acoustics where unsteady CFD computations are not affordable. For tackling higher frequencies and their associated model sizes, Actran features an original and automated mesh adaptivity. The Actran DGM solver leverages the latest HPC environments such as GP-GPUs which dramatically improves the computational efficiency of acoustic radiation analyses for automotive and aerospace industries.”

About Free Field Technologies (FFT), an MSC Software Company

Founded in 1998, and headquartered in Mont-Saint-Guibert, Belgium, Free Field Technologies, an MSC Software company, develops and supports Actran, a powerful software suite for acoustic, vibro-acoustic and aero-acoustic modeling. Actran contains a wide set of acoustic features making it the solution of choice for customers as diverse as top car manufacturers and their suppliers, the largest civil and military aircraft and aircraft engine manufacturers, leading producers of loudspeakers and other audio devices, consultants, universities and research centers. FFT maintains offices in Toulouse, Tokyo, Detroit and Beijing.

About MSC Software

MSC Software is one of the ten original software companies and a global leader in helping product manufacturers to advance their engineering methods with simulation software and services. As a trusted partner, MSC Software helps companies improve quality, save time, and reduce costs associated with design and test of manufactured products. Academic institutions, researchers, and students employ MSC’s technology to expand individual knowledge as well as expand the horizon of simulation. MSC Software employs 1,100 professionals in 20 countries. For additional information about MSC Software’s products and services, please visit: www.mscsoftware.com

The MSC Software corporate logo, Simulating Reality, MSC Nastran, Adams, Actran, Digimat, Dytran, Easy5, Marc, Patran, MSC, MasterKey, MasterKey Plus, MaterialCenter, MSC Apex, SimDesigner, SimManager, and SimXpert are trademarks or registered trademarks of MSC Software Corporation and/or its subsidiaries in the United States and/or other countries. NASTRAN is a registered trademark of NASA.



MSC Software
Leslie Bodnar, 949-510-2271
Email Contact
Free Field Technologies (FFT)
Diego Copiello
Email Contact


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