In addition to our technical support (e.g. via chat), you’ll find resources on our website that may help you with your design using Dlubal Software.
Frequently Asked Questions (FAQ)
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AnswerRFEM provides a perfect basis for the calculation and design of piping systems. The add-on modules RF‑PIPING and RF‑PIPING Design provide you with a support for modeling and design.
Since it is also possible to model supporting structures and other components of the entire model, an analysis and design close to reality is possible.
Main Program RFEMThe main program RFEM is used to define structures, materials, and actions.
Modeling of pipelines including specific piping components, such as valves, flanges or fittings.
- RF-PIPING Design
Comparison of existing and allowable stresses of piping systems
- EN 13480-3
- ASME B31.1
- ASME B31.3
Dynamic AnalysisIf it is necessary to perform seismic analysis or vibration designs of a building, the RF‑/DYNAM Pro add-on modules provide special tools for determining natural frequencies and mode shapes, for an analysis of forced vibrations, a generation of equivalent loads, or for a nonlinear time history analysis.If you have any question about the Dlubal Software programs, please do not hesitate to contact the sales department.
AnswerThe files from AutoCAD Plant 3D can be transferred to RFEM by using the CAD/BIM model feature. There are the formats STEP (*.stp, *.step), IGES (*.igs, *.iges), or *ifc available; the model is loaded as a base to create the pipe in RF‑PIPING Design.
AnswerThe operational combinations are not intentionally transferred into the add-on module because there is no requirement in the standard to evaluate them. You can see the internal forces or the responses induced by these combinations directly in RFEM.
The easiest way to find the internal forces at these nodes is to print graphics of the members in the printout report.
In the event that this solution is not an option, you can also take the values from the result table 4.1 in the printout report. Since the extreme values are only activated by default, it is still necessary to activate nodal values in the selection.
It is usually not reasonable to include the internal forces of all member in the printout report. Therefore, you can only select the members that are relevant to you.
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Wind Simulation & Wind Load Generation
With the stand-alone program RWIND Simulation, wind flows around simple or complex structures can be simulated by means of a digital wind tunnel.
The generated wind loads acting on these objects can be imported to RFEM or RSTAB.
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