Product Outline

This section provides a product outline of WAON, and introduces its features, functions, and operating environment.

What is WAON?

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"WAON, developed and sold by CYBERNET, is acoustic-analysis software applying the boundary element method (BEM). By using FMBEM, solver applying fast multipole algorithm (FMA) to 3D BEM, analysis time has been dramatically shortened and the memory size has been reduced compared to conventional BEM. "

Details of FMBEM are provided here

Features of WAON

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• FMBEM-based acoustic-analysis program for ultra-large scale simulation
  WAON is the first commercial acoustic-analysis software in the world to use FMBEM, a BEM solver which applies fast multipole algorithm (FMA).
• Able to calculate to high-frequency ranges with the wave theoretical analysis approach
  e.g.: In the case of analyzing problems with 60,000 degrees of freedom
  

  Conventional method	parallel processing with 64-bit system using eight CPUs
  WAON	Single process on the 32-bit Windows system

  When WAON is used on a 64-bit system, analyses with over 200,000 degrees of freedom can be executed with 8-GB memory!
• Reduced analysis man-hours and calculation time
  In contrast to existing large-scale acoustic analysis performed following discretization, new method can now be carried out with just one license and one PC.
• High-speed 3D graphics
• Easy-to-use user interface which can be executed without any manual
• By mounting the acoustic -structure coupled analysis function, capable of analysis taking into account interactions between structure and acoustics faithfully. This allows broad-range applications such as transmitted noise.
  See Case Study
• Interface with ANSYS Workbench

Applicable Model Shapes

WAON is able to selectively use two types of formularizations: Basic Form: BF and Double Layer Form: DLF. This helps resolve problems with various shapes appropriately.

When dealing with external problems of a model without an opening, for example, the matrix differs at around acoustic natural frequencies unique to sound in internal spaces of the model, disabling the analysis to be carried out correctly (apparent eigenvalue problem). To solve such problems, WAON is able to set the number of degrees of freedom at both the front and back of the elements using DLF, and apply characteristic impedance to the whole surface connecting to the internal space, thus allowing elimination of the specificity.

Applicable Boundary Conditions

• Point source
• Particle velocity boundary conditions (FEA results can also be used)
• Impedance (ratio)/admittance (ratio) boundary conditions
• Symmetrical boundary conditions
• Load conditions (acoustic -structure coupled analysis)

Results Evaluation Function

• 2D graph display/file output function
• Contour figure/file output function
• Vector display function
• Text file output function of analysis results
• Animation

Operating Environment

Introduction of User's Application

This section shows actual application.

• WAON Top Page
• Product
• Case Study
• For Users
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