We provide hints and tips to help you get started with the basic program RFEM.
FAQ 003286 | What is the easiest way to generate a rotated surface or a surface in the polar direction?
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First Steps with RFEM
Question
What is the easiest way to generate a rotated surface or a surface in the polar direction?Answer
For this, there are the additional options in Detail Settings of the functions "Move," "Rotate," or "Mirror," see Figure 01.
Figure 01 - Creating Rotated Surface
For example, if there is an annular surface to be designed, and you know the center point as well as the inside and outside radius are known, proceed as follows:
- Insert a node on the inside radius and the outside radius.
- Connect both nodes by using a line.
- Select these three objects.
- Open the "Rotate" feature.
- Activate "Lines between nodes" as well as "Surfaces between lines."
- Pay attention to the type of the connection lines that are created when rotating.
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Dlubal FAQ Rotate Move Copy Mirror Rotated surface Surface Frequently Asked Question FAQ about Dlubal Question and Answer about Dlubal
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New
Checking Horizontal Deformations
To control the lateral displacements of a model, you can use the RF-/LIMITS add‑on module.
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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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