Overview

Actran VibroAcoustics is a comprehensive and high-performance computer-aided engineering (CAE) module designed to simulate the interaction between structural vibrations and adjacent fluids. It offers a rich material library encompassing conventional acoustic and visco-elastic media, porous or incompressible media, composite materials, and active components like piezo-electric ceramics. This versatility enables accurate modeling of complex vibro-acoustic phenomena across various industries, including automotive, aerospace, consumer goods, and shipbuilding.

Features and Capabilities

• Extensive Material Library: Includes visco-elastic solids, shells, beams, rigid bodies, springs, masses, porous media, composite materials, and piezo-electric components, facilitating detailed modeling of diverse structures.
• Advanced Excitation Models: Supports realistic loading conditions such as diffuse sound fields, turbulent boundary layers, and rain-on-the-roof excitations, enabling precise simulation of operational environments.
• Flexible Solution Coordinates: Offers solutions in physical or modal coordinates, with hybrid methods available, providing adaptability to various analysis requirements.
• Non-Congruent Mesh Support: Allows integration of meshes with differing resolutions or element types, enhancing modeling flexibility.
• High-Performance Solvers: Features direct, iterative, and parallel solvers, including a unique fast Frequency Response Function (FRF) Krylov solver, reducing computational time for large-scale problems.
• Stress and Energy Computation: Calculates stress levels and outputs global and per-material energy quantities, providing comprehensive insights into structural behavior.
• Integration with Other Actran Modules: Compatible with Actran AeroAcoustics for combined aero-vibro-acoustic simulations, enabling the analysis of complex interactions between aerodynamic flows and structural vibrations.
• FEA Solver Interfaces: Interfaces with leading Finite Element Analysis (FEA) solvers, allowing the import of structural eigenmodes or superelements from other software, facilitating seamless integration into existing workflows.
• Nastran Model Translator: Includes a translator for converting Nastran structural analysis models into Actran, streamlining the enhancement of existing models with vibro-acoustic analysis capabilities.
• User-Friendly Interface: Integrated into Actran VI, providing a customizable graphical user interface for efficient pre-processing and post-processing of models.