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Geometry model construction in QuickField can be carried out by two ways:
In this paper we consider DXF (Drawing eXchange Format) file import. QuickField supports AutoCAD 12 specification for DXF files. It is possible to import the following geometric objects: nodes, lines, circular arcs. If the DXF file contains other objects, for example rectangles, they won't be imported. It is necessary to break complex objects into simple shapes before performing the export/import operation. Many CAD systems offer such an option.
Pic. Explode command in DraftSight® breaks complex objects into elementary parts
The original CAD drawing could have errors that are insignificant for the plot accuracy, but has drastic effect on the finite-element model quality. If the drawing is created without use of bindings there could be some errors:
Pic. Excessive finite elements mesh concretion
Pic. Error R-coordinate cannot have negative value
In all such cases it is necessary to correct the model after DXF importing.
See examples on DXF file import:
Cylindrical magnetic device (actuator)
Heat losses through windows
ISO 10211:2007 Thermal bridges in building construction. Test case A.2 validation
Heating and cooling of a slot of an electric machine
High voltage three phase cable ampacity
MEMS stress sensor
MEMS thermal actuator
Free tool: correct the model after DXF import.