Advanced Settings tab for shrinkage compensation

Defines the consideration of advanced cases which can cause shrinkage in the Shrinkage Compensation calculation. For example, shrinkage caused by holes and seams for auto 'main direction' and to consider full stiffener length.

Compensation of holes (distortions)

Defines whether to consider Compensation of holes (distortions) or not.

If you select the Compensation of holes (distortions) checkbox, the application calculates the Shrinkage Compensation for holes and other geometrical features on plates considering the Width/Length Arc Tolerance (ratio) option.

If you do not select the Compensation of holes (distortions) checkbox, the application does not calculate the Shrinkage Compensation for holes and other geometrical features on plates (geometry unchanged), but the hole moves appropriately.

Width/Length Arc Tolerance (ratio)

For the calculation of main direction in Manual shrinkage and the Automatic calculation definition of shrinkage compensation of connections, the traces, typically welds lines of connections on the panel are used. These calculations often assume that the traces are straight lines, only considering the line between the start and end point of the trace. To avoid errors caused by curvature, this threshold determines when a trace is too curved. The width refers to the maximum distance of the curved trace above the straight line between its end-points, and the length between the end-points regardless of curvature.

Consider seams for auto ‘Main Direction’

Defines whether to Consider seams for auto ‘Main Direction’ or not.

If you set Main direction to Auto in the Shrinkage Window and select the Consider seams for auto ‘Main Direction’ checkbox, the application calculates the Shrinkage Compensation by adding the geometry of the seams alongside the geometry of the connections into the calculation of automatic main direction for Manual Shrinkage.

Consider full stiffener length

Defines whether to Consider full stiffener length or not.

If you select the Consider full stiffener length checkbox, the application calculates the automatic Shrinkage Compensation on Shrinkage Lines from connections. The calculation algorithm uses the individual segments making up the connection traces, rather than the entire trace, and considers the following options.

Stiffener max perp distance

Defines the maximum perpendicular distance (D) between a stiffener (or other connected part) and a Shrinkage Line. For more information, see Automatic calculation definition of shrinkage compensation.

Enter a value in mm.

Stiffener max angle separation

Defines the maximum angle separation (q) between a stiffener (or other connected part) to a Shrinkage Line.

Enter a value in degrees.

Line/Plate length tolerance

Defines the tolerance ratio between the length of a Shrinkage Line and the projected plate length in its direction. If the length tolerance is smaller than the shrinkage line, the application does not consider the Shrinkage Line for the compensation.

Direction angle tolerance

Defines the tolerance to consider two Shrinkage Lines in the same direction in the calculation of shrinkage directions for automatic longitudinal shrinkage from connections.

Maximum number of directions

Defines the maximum number of directions used in automatic longitudinal shrinkage from connections.

Maximum partition distance

Defines the maximum distance between two Shrinkage Lines, or the distance between an edge and the closest shrinkage line. If the distances exceed the value, the partition is set to half of the plate width.