We provide hints and tips to help you get started with the RFEM program.
SVT 018 | Cutting Patterns for Membrane Structures with RF-CUTTING-PATTERN
Video
First Steps with RFEM
Description
This Short Video Tutorial shows how to calculate and organize membrane structure cutting patterns with the RFEM add-on module RF-CUTTING-PATTERN.
Consider allowances in the flattening process due to overlaps and compensations in the warp and weft directions.
This video describes how to determine the final cutting pattern geometry including from the partial surface input to the DXF export and documentation.
Keywords
Dlubal SVT Cutting patterns Membrane Structure RF-CUTTING-PATTERN Geodesic cutting lines Cutting patterns Warp direction weft direction Overlaps DXF cutting pattern export Compensation Flattening process SHORT VIDEO TUTORIAL Dlubal Short Video Dlubal Tutorial
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![[EN] PF 001402 | Display of Topology on Deformed Structure](/-/media/Images/netgenium/thumbnails/3/2/2/5/9/3225982/3225982.png?la=en&mw=348&mlid=A53337B61D7048D3989730EFCDE9189A&hash=13438A5022611362206E9996C11BB23D56F45CA3)
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Specific Requirements of Membrane Structures
This paper is focused on the specific aspects of designing membrane structures that have specific requirements, such as form-finding and cutting pattern generation. These topics are the focus of many research works, and many methods have been proposed to achieve the desired results. However, in this paper these issues will be discussed more from a practical than a theoretical point of view. The paper will be followed by examples that will complement the topic under discussion and show the special attention required during the design process.
Display of Topology on Deformed Structure
With the activated option "Topology on form-finding shape" in the Project Navigator - Display, the model display is optimized based on the form-finding geometry. For example, the loads are displayed in relation to the deformed system.
- How can I influence the sag of the found shape in RF‑FORM‑FINDING?
- I cannot define the prestress separately for warp and weft in RF‑FORM‑FINDING. How can I activate it?
- How is it possible to create the cutting pattern geometry for a decorative sticker on a biaxially curved membrane roof?
- How are the properties of the elasticity and shear modulus of a membrane fabric with the usual force/length syntax transformed into the general force/surface syntax to be entered in RFEM?
- Why do the results in a modal analysis differ between the initial prestress and the surface load?
- Although I have modeled two identical structural systems, I obtain a different shape. Why?
- How is it possible to make factorized combinations of a dead load in the context of form‑finding?
- I want to create a mapped mesh for a circular hole plate. Is it possible to generate such a mesh in RFEM?
- It seems that the members stay not deformed after my RF‑FORM‑FINDING calculation. What did I wrong?
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Can I export my cutting pattern?
