The program includes modules to solve linear and nonlinear static and dynamic structural problems, in addition to problems of heat transfer, fluid mechanics, electromagnetics and optimization. Modules for such special analysis options as fatigue are also available. The system is constantly developed and maintained by using stat e-of-the-art techniques and up-to-date hardware capabilities. Chapter 1.
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The program includes modules to solve linear and nonlinear static and dynamic structural problems, in addition to problems of heat transfer, fluid mechanics, electromagnetics and optimization. Modules for such special analysis options as fatigue are also available. The system is constantly developed and maintained by using stat e-of-the-art techniques and up-to-date hardware capabilities. Chapter 1. The program is completely modular allowing you to acquire and load only the modules that you need.
It is an interact ive full three-dimensional CAD-like graphic geometric modeler, mesh generator and FEA pre- and postprocessor. You can create the geometric model, mesh it, provide all analysis related information, perform the desired type of analysis, review, plot and print the results, without having to leave the GEOSTAR screen.
The program is powe rful, intuitive, and easy to learn and use. The average user can learn, create and solve real life problems after few hours of training. These modules are:. Linear Static Analysis. Buckling, Frequency and Mode Shape Analysis. FFE Frequency Analysis. Nonlinear Static and Dynamic Analysis. Heat Transfer Analysis. Fatigue Analysis. Advanced Dynamic Analysis.
Low Frequency Electromagnetic Analysis. HFS 2D. HFS 3D. Resonant Cavities Analysis. The COSMOSFFE modules are developed for the solution of large problems using sparse matrix technology along with iterative methods combined with novel data- base management techniques to substantially reduce solution time, disk space, and memory requirements.
Supported Platforms. Figure Microstation Modeler. FFE Modules. A diverse set of geometric modeling capabilities combined with flexible meshing options allow for the creation and meshing of complex models with ease. More information on the various aspects of this module are given in Chapter 3. Pull-Down Menus and Geo Panel. Commands are grouped in an intuitive way th at makes it easy to select and issue the proper command to perform the desired function.
Once a command is issued, you will be guided by dialog boxes throughout the input process. Default entries are used where appropriate. The Geo Panel window provides toolbars and buttons for quick access to commonly used commands. Friendly Interface. Items and dialog boxes and prompts list all possible entries.
Error messages are issued in a simple and direct manner. Many listing commands are available to inform you on the status of the database. This function can help you generate reports.
GEOSTAR's comprehensive list of geomet ry-related commands makes it possible to quickly and accurately create, modify, list, delete, undelete, pick and identify geometric entities. These entities can be combined and used to create complex models. You can perform static, frequency, buckling, heat transfer, electromanetic, and fluid. No nlinear structural analysis isbeing added. Importing SolidWorks Assemblies.
Mesh Generation. Mesh generation is simple and powerful through commands dealing with one, two, and three dimensional models. Meshing commands operate on predefined geometric entities to create a finite element mesh.
The degree of control over the meshing process is determined by the user through a variety of commands. Com- plex multi-connected regions, in particul ar, can be easily meshed using the contour and region entities. Mesh density can be fully controlled throughout the model. Loads and Boundary Conditions. Loads and boundary conditions can be directly applied to nodes or elements or indirectly through association with geomet ric entities. This feature simplifies the process and minimizes the required input time.
Loads and boundary conditions should be applied after meshing. Element Library. GEOSTAR provides an extended element li brary that gives you the power required to model the physical problem in the most accurate way.
Adaptive Meshing. Adaptive meshing using the H-method provides you with automatic mesh. The P-method internally uses a higher polynomial. The P-method. An option to combine the H and P methods is also available. Command Language Programming. COSMOSM offers parametric input includi ng arrays, user defined functions and macros to conduct design and sensitivity analyses. With these features, you can build application programs to automatical ly construct and analyze designs using sophisticated programming functions.
Selection Lists. A selection list is a filtered set of the memb ers of an entity. Multiple selection lists. Once activated, the selection list allows you to operate only on the selected members of that entity.
Access will be denied to other members of the entity not included in the. Various ways to add to or take away from selection lists are provided. A facility. Multiple Windows. The created windows can be easily manipulated for convenient viewing while developing or processing the model.
On-Line Help. Many commands include graphics and procedures to illustrate their functions. Links to related commands are also provided. Chronological Record Session File. This f ile called the session file provides a backup in case of problems with the database. Geometric Format. Recreation of a model from the session file can take a long time due to the fact that. The geometric format ignores such intermediate steps by operating directly on the database. The geometric or neutral format is a speci al format in which the equation of the related entity is represented.
In addition to saving time, this utility is useful in combining indepen- dently created parts of a model. Extended Analysis Options. Result Evaluation. Once an analysis is performed, the user can proceed to evaluate the results. Line, color- filled contour, vector plots, isoplane and section plots can be generated for various result quantities in the different modules.
An imation is also prov ided for structural. In addition, a utility for time-history or XY ty pe plots is available. STAR uses the linear theory of structures, based on the assumption of small displacements, to calculate structural deformations. The following are some important features:. Gap-friction problems. Adaptive P - , H - , and HP - versions of the finite element method. Bonding of or connecting non-compatibl e separate parts of the same model.
Solid-solid, solid-shell and shell- shell bonds can be specified. The module can also calculate buckling loads and the associated mode shapes. The followi ng are some important features:.
Linear and nonlinear, steady-state and transient heat transfer. Temperature-dependent material properties. Time- and temperature-dependent heat sources and sinks.
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Cosmos geostar tutorial pdf
The software COSMO members use, falls into two broad categories: official packages and other shared software. The goal of this page is to promote the sharing of both major code and all sort of useful utilities among members. Not all software can be downloaded from this page the model itself being the most notable case. Some of it is registered and you have to contact its owners first. The use of the "Cosmo" model is free of charge for research applications and conditionally for national meteorological Services see the licensing terms. To obtain the source code of Int2lm produces native input for Cosmo and Cosmo the forecasting model itself , you have to register first even for the case of free use.