ACTRAN Modules Products overview Copyright Free Field Technologies
ACTRAN ACTRAN is the most complete CAE tool for Acoustic, Aero-acoustic and Vibro-acoustic modelling. ACTRAN is based on the finite and infinite element methods ACTRAN in a nutshell Material library: Acoustic FE and IE (flow, temperature, visco-thermal effects) Visco-elastic solid & shell (freq. dependent properties) Poro-elastic (Biot model) and porous rigid (Craggs model) Piezo-electric and composite materials Excitations & BC s: Structural (interfaced with Nastran, Ansys, Abaqus) Turbulent boundary layer (Corcos), diffuse sound field Aerodynamic Noise & CAA (Lighthill analogy) Fan noise through incident spinning duct modes ACTRAN is linked to many other CAE tools: Pre- and post-processors Structural analysis programs Computational Fluid Dynamics programs 2 Copyright Free Field Technologies
ACTRAN VI ACTRAN Modules ACTRAN for NASTRAN ACTRAN DGM ACTRAN Vibro-Acoustics ACTRAN Aero-Acoustics ACTRAN TM ACTRAN Acoustics 3 Copyright Free Field Technologies
ACTRAN Acoustics Contains all acoustic as well as weak vibro-acoustic coupling features of ACTRAN Finite elements Infinite elements Acoustic elements including viscothermal loss effects Convected wave propagation Is a pre-requisite for all advanced ACTRAN modules: ACTRAN Vibro-Acoustics ACTRAN Aero-Acoustics ACTRAN TM Sound radiation from vibration structures Sound diffraction by rigid obstacles Propagation in ducts Acoustic resonances ACTRAN/AR ACTRAN/VA acoustic features MSC.Actran Package 1 4 Copyright Free Field Technologies
ACTRAN VibroAcoustics Contains all structural modelling features as well as strong vibroacoustic features of ACTRAN Structural finite elements Modal representation of the structure s dynamic behaviour Mechanical excitations (incl. random excitations) Requires ACTRAN Acoustics as a pre-requisite Is a pre-requisite for: ACTRAN for NASTRAN Strongly coupled vibro-acoustic analysis Acoustic transmission Vibration of structures in a heavy fluid Multi-domain, multi-physics applications ACTRAN/VA MSC.Actran Package 2, 4 and 5 ACTRAN/LS ACTRAN/RM 5 Copyright Free Field Technologies
ACTRAN Aero-acoustics Contains all advanced features for aero-acoustics modelling Interface to CFD codes Handling of Lightill source term Handling of Möhring source term Requires ACTRAN Acoustics as a pre-requisite Fan noise HVAC noise ACTRAN/LA 6 Copyright Free Field Technologies
ACTRAN TM Contains all advanced features for modelling turbo-machinery noise Convected wave propagation Lined wall modelling Definition of acoustic excitation in terms of incident duct modes Aircraft engine turbofan noise ACTRAN/TM Requires ACTRAN Acoustics as a pre-requisite 7 Copyright Free Field Technologies
ACTRAN for NASTRAN Contains all advanced features for mixing ACTRAN and NASTRAN models Import of NASTRAN super-elements in ACTRAN Vibro-Acoustics Export of ACTRAN impedance matrices to NASTRAN Trimmed body modelling using an updated modal approach Requires ACTRAN Vibro-Acoustics as a pre-requisite Trimmed body modelling using a NASTRAN body-in-white model and Acoustic transmission Vibration of structures in a heavy fluid Multi-domain, multi-physics applications ACTRAN/VA MSC.Actran Package 2, 4 and 5 ACTRAN/LS ACTRAN/RM 8 Copyright Free Field Technologies
ACTRAN DGM Contains advanced features for modelling complex turbo-machinery noise problems Solves Linearized Euler Equations (LEE) Using a Discontinuous Galerkin Method Accounts for complex background flow and temperature fields Aircraft engine turbofan noise ACTRAN/DGM Requires ACTRAN TM as a pre-requisite 9 Copyright Free Field Technologies
ACTRAN VI Provides a unified pre- and postprocessor for all ACTRAN modules Start from an existing mesh in BDF (Nastran), UNV, Actran, RST (Ansys), CDB (Ansys), NFF, Patran Neutral Format ACTRAN/VI 10 Copyright Free Field Technologies