MSC Actran 2020

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MSC Actran 2020





MSC Actran 2020
File Size:756 MB

Actran is a general purpose finite element program for modelling sound propagation, transmission and absorption in an acoustic, vibro-acoustic or aero-acoustic context.



A large material library:
-acoustic fluid;
-thin acoustic layer and narrow tubes (or channels) including viscothermal effects;
-visco-elastic solids, solid shells, thin shells and beams;
-incompressible solids;
-composite materials;
-lumped mass and springs (discrete structural elements);
-rigid porous, lumped porous and poro-elastic materials (Biot theory)

A complete element library:
-linear and quadratic
-2D, 3D and axisymmetric
-standard volume elements and special transverse elements for the
-accurate modelling of special configurations: shells, stiffeners, thin acoustic layers
-conjugated infinite elements or adaptive PML elements for acoustic radiation

A rich set of boundary conditions, operating conditions and sources:
-acoustic sources;
-incident and free duct modes for rotating machines;
-pressure, velocity, acceleration and admittance boundary conditions;
-kinematical excitations : imposed displacements and rotations;
-mechanical excitations : point load, distributed load, distributed pressure, moments;
-in-build models of real-life excitations : incident diffuse sound field or

Various models of turbulent boundary layer
-interface with the leading structural FEA software packages (Nastran, Ansys and Abaqus) for the import of dynamical results
-interface with the leading CFD software packages (among others:Fluent, star-CD and CFX) for the import of the heterogeneities of the acoustic medium and the computation of the aero-acoustic sources
-volume-based and surface-based aerodynamic source terms (Lighthill's and M�hring's analogies) for analyzing broad-band noise generation by turbulent flows;

Several unique features (non exhaustive list):
-sound propagation and absorption in a non-uniformly moving fluid;
-sound propagation in non-isothermal conditions;
-sound propagation in rotating acoustic components;
-sound propagation taking into account visco-thermal losses occurring in thin air layers, tubes or arbitrarily-shaped cavities
-random acoustics in both modal and physical coordinates;

multiple calculation procedures:
-direct frequency response analysis
-modal frequency response analysis using existing Actran, Ansys or Nastran normal modes
-compressible flow analysis
-modal extraction

Various solution strategies:
-restart capability
-multiple load capability
-strong or weak vibro-acoustic coupling
-multi-level sequence tree to avoid unnecessary re-computations
-hybrid Modal/Physical approaches in-core and out-of-core solvers supporting sequential and parallel (SMP and DMP) computer architectures
-fast frequency response synthesis using the KRYLOV solver.

System Requirements:
OS:Windows 10/Windows 7 (with SP1)
CPU: any x86-64 processor that supports the SSE3 extensions (such as the AMD Opteron and Intel Xeon)
GPU: NVidia Tesla K40, K80 or P100*
Graphics:OpenGL-3.2

WHATS NEW
Read:Actran_2020_Release_Highlights.pdf

SCREENSHOTS

HOMEPAGE
https://www.mscsoftware.com/

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