We provide hints and tips to help you get started with the basic program RFEM.
FAQ 003262 | What is the easiest way to define a polygonal surface graphically?
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First Steps with RFEM
Question
What is the easiest way to define a polygonal surface graphically?Answer
Basically there are two options:
- If no structural lines are defined yet, a polygonal surface can be defined by menu bar → "Insert" → "Model Data" → "Surfaces" → "Plane" → "Graphically" → "Polygon", see picture 1
- If structural lines are already defined, a polygonal surface can be defined by menu bar → "Insert" → "Model Data" → "Surfaces" → "Plane" → "Graphically" → "Select Boundary Lines", see picture 2
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Dlubal FAQ Surface Polygonal Graphically Frequently Asked Question FAQ about Dlubal Question and Answer about Dlubal
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New
The ‘Mapped FE Mesh Preferred’ option has an influence on the mesh generation of surfaces with curved and folded outlines.
![Vertical Soil Stress under Corner Point of Uniform Rectangle Load [2]](/-/media/Images/website/img/000001-010000/009601-009700/009675.png?la=en-US&mlid=AEBCAC28C25A4A2F93F419D5DA4345C3&hash=FCBCB6855E60021AD52D69E883CC664E5B66672B)
![Vertical Soil Stress According to Boussinesq [2]](/-/media/Images/website/img/000001-010000/009601-009700/009674.png?la=en-US&mlid=6A2CE5FBD4C1471CB9163F4CD95C1105&hash=80B938B2DF3D3FDF7E1E5C66B3E5FB6EBF289AB7)
![Distribution of Forces and Moments in Column Base According to [1]](/-/media/Images/website/img/000001-010000/009601-009700/009638.png?la=en-US&mlid=7D34CEAAE7354583A29169095622B515&hash=1C29D4703C59F464778B8861B097C4BCC2E2CBC1)
New
Increased Calculation Performance by Reducing the Nodal Degrees of Freedom
The number of degrees of freedom in a node is no longer a global calculation parameter in RFEM (6 degrees of freedom for each mesh node in 3D models, 7 degrees of freedom for the warping torsion analysis). Thus, each node is generally considered with a different number of degrees of freedom, which leads to a variable number of equations in the calculation.
This modification speeds up the calculation, especially for models where a significant reduction of the system could be achieved (e.g. trusses and membrane structures).
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- How can I create a curved or arched section?
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- Is it possible to make the generated member loads from area loads via plane to act eccentrically on the member cross-section?
- After the calculation in the RF‑/DYNAM Pro - Equivalent Loads add-on module, the size of my file has increased significantly. The performance has worsened enormously. What could be the reason for this?
- Why are my imperfections displayed graphically in different ways and can I adjust the display?
- What happens with the programs and add-on modules in the case of the timeout of a network license? And how can I increase the timeout?
