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Video 01 - FAQ Explanatory Video

Figure 01 - Distribution of Pressure Around Real Cross-Section Geometry

Figure 02 - Distribution of Pressure Around Simplified (Optimized) Cross-Section Geometry

Figure 03 - Settings menu

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FAQ 004165 EN

4 November 2019

Andreas Niemeier Modeling | Loading RFEM RSTAB RWIND Simulation Power Plants Steel Structures Process Plant Construction Bridges Towers and Masts Temporary Structures Aluminium Structures Scaffolding and Rack Structures Offshore Structures Silos and Storage Tanks Buildings Cranes and Craneways Renewable Energy Structures Conveyor Structures Drilling Structures Stairway Structures Wind Simulation & Wind Load Generation

How can the real cross-section geometry of member elements be considered in the RWIND Simulation?

Answer

In RFEM, the interface application 'Simulate and Generate Wind Loads' makes it possible to exchange member, surface, and solid elements, and in RSTAB to exchange the member elements.

To avoid generating a too fine mesh along with a corresponding long calculation time, the program simulates all members with a rectangular cross-section as standard. The size of the rectangular cross-section is selected in such a way that the real cross-section geometry is barely included.

Figure 02 - Distribution of Pressure Around Simplified (Optimized) Cross-Section Geometry

By deactivating the option 'Export Optimized Member Topology', you can avoid this additional optimization of the model and allow consideration of the real cross-section geometry within existing cross-section settings.

Figure 01 - Distribution of Pressure Around Real Cross-Section Geometry

Figure 03 - Settings menu

If the exact representation of the cross-section geometry requires more than 1000000 elements, the interface automatically changes to the simplified rectangular section display of the cross-sections.