Why does the form-finding not work for the "Cable on Pulleys" member type?


The "Cable on Pulleys" member type can only describe the forces N and displacements u‑x in the direction of the cable. Therefore, it cannot be combined with regard to the form‑finding, for example, at the edge of membrane surfaces.

For this, see also Chapter 4.17 in the online manual for RFEM 5.


Cable on pulleys Form-finding Sag Cable Membrane structure



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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

Add-on Module

Form-finding of tensile membrane and cable structures

Price of First License
1,750.00 USD