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NOVA: Multilayer material acoustic simulator

Overview

NOVA software is a very powerful tool that will help you design and optimize the acoustic properties of a multilayer material without having to spend too much time on long and expensive testing.

NOVA software allows you to optimize the acoustic absorption and transmission loss of several materials configurations in a very short time because of its user-friendly interface and extremely fast computing time.

Features

  • Nova includes two modules:
    • Mid and high frequency modules based on Transfer Matrix Method with correction for finite size effects.
    • Low frequency module based on FEM/BEM provides the most advanced models for porous materials (rigid, limp, felts, elastic, screens, and perforated panels).
  • Allows unlimited combination of material layers including elastic, visco-elastic foam, fiber, felt, screen, septum, solid, perforated plates and fluid to simulate real-life acoustic problems.
  • Accounts for orthotropic, sandwich and composite panels.
  • Allows for frequency dependent properties.
  • Includes automatic detection and coupling of domains (elastic and fluid).
  • Studies the effects of different boundary conditions and various types of excitations (plane waves, diffuse acoustic field, mechanical, pistons, point source, turbulent boundry layer, etc.).
  • Includes extensive materials database.
  • Includes scripts to calculate SEA input parameters: modal density, loss factor, radiation efficiency, wave numbers, etc.
  • Accounts for finite size effects in the high frequency module.
  • Allows simulation of impedance and bazooka tests, transmission loss tests and random incidence absorption tests.
  • Analyzes narrowband and 1/3 octave band.
  • Computes a large number of parameters: absorption and reflection coefficient, surface impedance, transmission loss, dissipated powers, equivalent damping loss factor, space averaged velocity and pressure response, insertion loss, radiation efficiency, etc.

Benefits and Main fields of application

By numerically modeling these materials, design decisions can be made to improve the performance for the required application in terms of cost, weight, efficiency, dimensions or other important criteria.

Main fields of application
Automobiles: carpets, seats, headliners, hood, trunk and cargo trim linings, floor systems, multilayered treatments
Aircraft: trim, damping, seats, floor, panel treatments
Buildings: insulation walls, doors, carpets, single/double windows
Materials: rank and optimize acoustic performance

For more details, please contact us.

Add-Ons and Complements

  • Nova is part of ESI Group family of VA products
    Extract the properties of your own materials, test your optimal solution and the strength of your design using world-class simulation tools
  • Characterization equipment
    Extract the properties of your own materials using state-of-the-art equipment
  • FOAM-X software
    For more details, please contact us.

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