Why is the compensated cutting length of the membrane surface not compatible with the defined compensation?

Answer

The integral flattening procedure in RF-CUTTING-PATH does not flat each cutting individually, but rather the complete model geometry in one step. The line type of the respective cutting units also has an effect on the adjacent cuttings.


In the case of a welding line between two cuttings, the program ensures a line uniformity in the connecting zone. The geometry of the cuttings is determined so that the relevant edge lengths of the cuttings are identical.

The line type "Boundary line" allows for an independent view of the subsequent cutting units. The length of the boundary lines in the adjacent area may be different.


Basically, the cutting units meet the following conditions:

  1. Surface compensation,
  2. Boundary line compensation and
  3. Type of the boundary line 
These requirements are numerically precisely represented in the integral calculation. Especially for cuttings in the boundary area, the process can usually not determine a universally applicable cutting form due to too many boundary conditions.


In this case, the program is approaching an optimal solution. The affected cuttings are particularly noticeable due to their curvature in relation to the uncompensated solution. Due to the greater degree of modification, these cuttings also differ slightly from the defined compensation specifications, but are in equilibrium with all other cuttings due to the overall calculation.

Deformation Process








Keywords

Compensation Cutting Flattening Cutting length Membrane surface

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RFEM Tensile Membrane Structures
RF-CUTTING-PATTERN 5.xx

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