Vibro-acoustic analysis faster FFT

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Free Field Technologies (FFT), an MSC Software company, released Actran 17 software for easier and faster acoustic, vibro-acoustic analysis and aero-acoustic simulations. The software allows transient aero-acoustic simulations thanks to the extension of the time domain solver capabilities, which includes aero-acoustic sources. It opens the possibility to analyze the noise generated aerodynamically by turbulent flows but also from CFD simulations of transient phenomena.

The SNGR technology synthesizes aero-acoustic noise sources from steady RANS CFD simulations, now supporting different types of parallelism with a linear speed up of the computational performance. In addition, the mesh adaptivity now features two new capabilities: adaptive structural surfaces and adaptive equivalent-fluid materials, such as porous materials. Thanks to this technology, the solver automatically generates optimal meshes for vibro-acoustic simulations, drastically reducing the computational time when compared to typical acoustic simulations. Enhancements of the adaptive fluid components are also delivered to further improve the computational performances.

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