Submodel technique using the Submodel Inspector
Efficient sub-model technique for precise calculations.
The demands placed on physical modelling have increased. Models are becoming more detailed and calculations more complex – yet computing power often cannot keep pace. The sub-model technique offers an innovative solution for speeding up calculations and achieving accurate results.
Why use the sub-model technique?
The ideal solution for complex calculations.
The sub-model technique allows critical areas of a model to be specifically isolated and finely meshed. This enables fast and precise calculations without the need to recalculate the entire model. In this way, you save valuable time whilst simultaneously improving the accuracy of your results.
Boost your efficiency, improve your results
Advantages of the sub-model technique.
- Faster calculations
- High precision
- Optimised work processes
- Seamless integration
Simple, secure, time-saving.
Submodel Inspector – The assistant for efficient submodels
The Submodel Inspector supports you through an automated process for creating and evaluating the submodel. It provides a graphical interface in the form of a wizard to guide you to the desired result. This makes it easy to set up the submodel, and the process usually takes less than a minute.
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Example
Limitations of the sub-model technique
The image on the left shows an assembly comprising several components, the mesh and the overlaid stress results. The close-up (on the right) reveals the stress concentration. Although the stressed regions are calculated, the coarse meshing means that no precise conclusions can be drawn regarding the magnitude of the stress. This is where the sub-model technique comes into play. The process consists of three steps: examining the coarse model, creating the sub-model and interpolating the results.
However, this approach has a drawback: it requires considerable effort to create the sub-model and transfer the displacement results. I have therefore developed a programme that automates these time-consuming and error-prone steps – the Submodel Inspector.
Automated process
Precise stress analyses using the Submodel Inspector.
The Submodel Inspector in NX/Simcenter automates the creation of submodels, meshing and the transfer of boundary conditions, enabling rapid and precise analysis of even complex assemblies. The entire process is carried out in three simple steps. An example: A welded assembly made of rectangular tubes shows a visible increase in stress that needs to be assessed in more detail. However, this is not possible due to the coarse meshing. Using the Submodel Inspector, the submodel is created in just a few steps and the stress distribution is analysed precisely.
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