Actran – Acoustics Simulation

Actran is the premier acoustics software to solve acoustics, vibro-acoustics, and aero-acoustics problems. Used by automotive manufacturers and suppliers, aerospace and defense companies, and consumer product manufacturers, it helps engineers better understand and improve the acoustics performance of their designs.

1. Actran VibroAcoustics

   Actran VibroAcoustics is a robust, reliable and high-performing vibro-acoustic CAE module. With the ability to simulate realistic modeling boundary conditions by combining dynamic, kinematic and acoustic constraints, as well as physical excitations like diffuse sound field and turbulent boundary layer, you can obtain accurate representation of the acoustic performance of your designs. In addition, you also have the ability to combine this capability with Actran AeroAcoustics to giving you the ability to model complex aero-vibro-acoustic problems.

   

2. Actran AeroAcoustics

   Predicting the noise generated by complex flows, Actran Aero Acoustics offers high performance solvers and parallel processing features with full integration in the Actran pre- and post-processing environment, Actran VI. It can also be combined with Actran VibroAcoustics in order to address aero-vibro-acoustic challenges such as side mirror noise.

   

3. Actran SNGR

   Predicting the noise generated by complex flows from steady CFD solutions. Actran SNGR allows addressing the noise generated from turbulent flows in a much faster way than classic aero-acoustic approaches and it is specifically useful when relative levels between different designs are needed such as in optimization loops.

   Actran SNGR offers high performance solvers and parallel processing features and is fully integrated in Actran VI.

   Actran SNGR can also be combined with Actran VibroAcoustics in order to address aero-vibro-acoustic challenges.

   

4. Actran for Trimmed Body

   Advanced vibro-acoustic analysis combining Actran and MSC Nastran Powerful tool for modeling and analyzing complex vibro-acoustic systems such as trim components.Actran for Trimmed Body is a powerful tool for modeling and analyzing complex vibro-acoustic systems such as trim components. Such components are usually made of materials with high damping and strong acoustic absorption characteristics; as such they have a significant influence on the overall vibro-acoustic behavior of the structure.

   

5. Actran SEA

   Efficient mid- and high- vibro-acoustic CAE module.

   From FEA to SEA

   Building a SEA model with classical approaches usually requires an access to experimental data or analytical expressions limiting the range of geometrical objects that could be handled. With Actran SEA module and its Virtual SEA approach, CAE engineers can use their existing Finite Elements vibro-acoustic models (mode shape and eigen values) to create a SEA model. Based on automatic or user-defined subsystems definition, SEA parameters are efficiently extracted from the Finite Elements model to perform sound and vibration analysis at mid- and high frequencies together with transfer path analysis regardless the availability of SEA expertise or experimental-based information. Combined with a unique frequency extrapolation method, the Actran SEA module offers the possibility to extend the frequency range validity of existing vibro-acoustic finite elements models to high frequency analysis.

   

6. Actran TM

   A powerful acoustic CAE tool for turbomachinery noise prediction

   Use Actran TM to analyze the sound radiated by turbomachinery and to optimize the related acoustic treatments. One of the challenges of acoustic CAE methods is handling of large models associated to high wave number and to large geometrical size and complexity. Actran TM provides efficient solver technologies to address this problem, which includes advanced parallel processing.

   

7. Actran DGM

   Model noise propagation in complex flows. Actran DGM solves the linearized Euler equations using discontinuous finite elements and is used for predicting the noise propagation in complex physical conditions. It is particularly well suited to solving aero-acoustic problems at the exhaust of a double flux aero-engine, including effects such as propagation through strong shear layers, high temperature gradients and non-homentropic mean flows.

   

8. Actran VI

   Dedicated pre and post-processor for the Actran CAE software family Integrated pre-processing tools ease the creation and editing of Actran models.

   Actran VI is the new graphical user interface specifically designed for pre- and post-processing vibro- and aero-acoustic analyses of all Actran modules.

   Including an Actran input file reader to check or modify input files generated by other tools, Actran VI supports several mesh formats (Nastran BDF, ANSYS RST and CDB, Actran DAT and NFF, I-DEAS UNV, Patran Neutral Format) as input for creating Actran input files.