What is the easiest way to simulate a cushion for the RF‑FORM‑FINDING add‑on module?

Answer

Basically, RFEM does not accept identical surfaces at the same location because of the ambiguity. In this case, RFEM automatically deletes one of the two surfaces. Nevertheless, it is possible to create a cushion with form-finding in RFEM. You only need to make sure that the surfaces are not at the same location when entering them for the first time. Therefore, it is recommended to define the surfaces of the cushion with a Bézier surface and move the inner control points slightly outwards.

Keywords

Foil cushion Cushion

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RFEM Main Program
RFEM 5.xx

Main Program

Structural engineering software for finite element analysis (FEA) of planar and spatial structural systems consisting of plates, walls, shells, members (beams), solids and contact elements

Price of First License
3,540.00 USD
RFEM Tensile Membrane Structures
RF-FORM-FINDING 5.xx

Add-on Module

Form-finding of tensile membrane and cable structures

Price of First License
1,750.00 USD