The preprocessing group consists of the following menu pull-down items. Section 1.0 describes how to set up a new analysis once you've loaded the model group (the geometry, mesh, and material files). Section 2.0 has background information on each analysis suite. This section is not complete for the Structural Acoustics 3D analysis as you must consult the included separate background discussion (FE formulation of Fluid Loaded Structural Transducers FEWaves Reference Manual). Section 3.0 shows you how to apply the boundary conditions to the model. Keep in mind that the specific boundary conditions are analysis dependent, so you must refer to the appropriate subsection. You'll find that the mechanics of applying boundary conditions are independent of analysis, however. Sections 4.0 and 5.0 discuss the material database required for the acoustics and electrostatics suites of analysis, respectively.
1.0 Options:Analysis Pull Down
2.0 Analysis Suites
2.1 Axi-symmetric Cavity Acoustics
2.3 Electrostatic 3D
3.0 Options:Apply
3.2 Analysis Dependent Boundary Conditions
3.2.1 Axi-symmetric Acoustics
3.2.2 Structural Acoustics 3D
3.2.3 Electrostatics 3D
4.0 Materials - Acoustics Analysis Suite
4.2 Material Format
4.3 Options:Materials:Assign to Regions
5.0 Materials - Electrostatics Analysis Suite
5.2 Material Format
5.3 Options:Materials:Assign to Regions
Once you have mastered the understanding and use of each of these pull-down relevant to your analysis, you can easily create and modify your preprocessing database for any of MSTR Technology's suite of analysis codes. This preprocessing database consists of two ASCII files that contains the boundary condition and material property information for each model. The first file is the material file, which will be in either the electrostatics analysis suite format or the acoustic analysis suite format. The second file is the file with the extension PRE which details the boundary conditions for the model. The format of the first file is detailed in the following pages. Call MSTR Technology tech support if you desire more information on the format of the PRE file. In both cases the GUI provided in FEWaves allows you to add, modify, or delete data from these files.
We recommend you keep one material file for each type of analysis for all problems to eliminate confusion. As you perform more analysis problems, you will build up a database of material properties that will be useful for future problems and for reviewing the results of past analysis runs. There is no limit to the number of materials you can define in this master material file, but you should have a unique name and ID number.
The above menu items are explained in detail in the following pages.