Superelement Analysis with MSC MSC Nastran Training Course (NAS106)
One thing that has been consistently demonstrated in finite element analysis is that demand will always exceed existing capabilities. In the early days of computers, when engineers were solving small problems by hand, computers were able to handle problems as large as 11 by 11. Once engineers discovered this ability, the size of engineering problems quickly grew to exceed the capacity of the existing systems. This process has repeated itself time and time again, until modern supercomputers are capable of solving problems involving more than 1,000,000 equations with 1,000,000 unknowns, which is still not enough to satisfy the needs of some engineers. This limit on hardware, combined with budget limitations (large runs are expensive), results in limitations on the ability of engineers to solve large, complicated problems. A solution to these limitations (both hardware and budget) is the use of superelements in MSC Nastran.
Using superelements, one can check segments of the model independently and use the reduced matrices from the check runs in the final full model analysis. Superelements allow different groups to work on different parts of the model. In addition, superelements allow the use of "Global-Local" methods to obtain detailed results by applying results from the full model to refined local models. The automatic restart feature in MSC Nastran makes using super-elements even more efficient. Upon a restart, only the operations necessary to get the right answer are performed.
This course describes how to perform static and dynamic analysis using superelement techniques. The methods used in superelement partitioning and its implementation is covered in detail. Special attention is paid to restarts in superelement analysis and applying superelements to dynamic analysis, including component modal synthesis.
Who Should Attend:
- MSC Nastran users wanting to learn about superelement analysis
- Engineering Analysts
- University lecturers and students
Course Content:
- Introduction, theory, and overview
- Superelement partitioning and terminology
- Superelement case control
- Loads and boundary conditions
- Output formats
- Plotting
- Multilevel analysis
- Manual and automatic restarts in static analysis
- Resource estimation
- Database management and terminology
- Upstream/downstream databases
- Secondary (image and external) superelements
- Dynamic analysis with superelements
- Normal modes analysis
- Reduction techniques for dynamics
- Guyan reduction
- Generalised dynamic reduction
- Component modal synthesis
- Transient and Frequency Response Analysis
- Restarts in dynamic analysis
Prerequisites:
Length |
Cost |
3 days |
$2,145 AUD |
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