Modifying Shell Stiffeners

For shell stiffeners there is no corresponding create function since new shell stiffeners are created with the Split function. Therefore, the Modify function for shell stiffeners will be described here.

A large number of attributes can be modified for a shell stiffener. The modify dialog is therefore divided into four pages described below.

Figure 2:18. Form for modification of General Shell Stiffener Data

Name Prefix: for example, panel or profile name used as part of the stiffener name.

Running Number: Running number of the stiffener used as part of the stiffener name.

Posno: Position number of the shell stiffener.

When modifying several shell stiffeners, it is possible to use incremental repetition term in the format of for example, 1()10, 1(2)9,1-9, 12-18, 100(-2)92

GPS (or Posno Prefix and Posno Suffix if SBH_AN_POSNO is set): General purpose strings 1 to 4. If the logical SBH_AN_POSNO is set, strings 1 and 2 are interpreted as parts (prefix and suffix, respectively) of an alphanumeric position number for the shell stiffener. For example, if the prefix is set to ABC, the suffix is set to DEF and the position number is set to 10, the alphanumerical position number will equal ABC10DEF.

Shrinkage: Shrinkage of the shell stiffener, measured in mm/m.

Weld Depth: Depth of the fillet weld when the stiffener is mounted on a curved panel.

Location Code, Parts List Name, Destination and Surface Treatment: These are all identification strings with a user-defined purpose.

Figure 2:19. For for modification of Shell Stiffener Profile Data

Symmetry: Side for which the selected stiffener is valid. Set to Dummy to make the stiffener a dummy stiffener, that means, without any material.

Bevel Trace: Bevel along the trace.

Automatic Bevel: Whether Dotori should be applied along the trace.

Material from: Use this field to choose the way profile data is given. The field can be set to Form (use the form input), Menu (select type and dimensions from a menu) or Default (use default settings for the corresponding shell profile).

Type: Profile type valid for the shell stiffener.

Parameters: Profile dimensions valid for the shell stiffener.

Quality: Material code.

Material Side: Material side of the shell stiffener.

Laminate side: Laminate at the side of the stiffener, either as numeric code or text.

Laminate top: Laminate at the top of the stiffener, either as numeric code or text.

Bead width: Width of bead at the stiffener.

Bead posno: Position number of the bead.

Bead quality: Material code of the bead.

Figure 2:20. For for modification of Shell Stiffener End Data

Incl. Type: Default means the angle at the stiffener end is in the plane of the stiffener trace curve. If the stiffener trace is not planar, then an "approximate plane" is calculated and used to set the default angle. Perp will make the stiffener perpendicular to the surface at the end, while Perp Whole will make the stiffener perpendicular to the surface in every point of the stiffener trace. XT, YT and ZT may be used in combination with the Angle field to set an explicit angle, which is measured according to the following rules:

• If XT is set, the angle will be measured in the X-Y plane. An angle of 0 is along the positive direction of the x axis. An increase of the angle will mean a counter-clockwise rotation, seen along the negative direction of the z axis.

• If YT is set, the angle will be measured in the Y-Z plane. An angle of 0 is along the positive direction of the y axis. An increase of the angle will mean a counter-clockwise rotation, seen along the negative direction of the x axis.

• If ZT is set, the angle will be measured in the Z-X plane. An angle of 0 is along the positive direction of the z axis. An increase of the angle will mean a counter-clockwise rotation, seen along the negative direction of the y axis.

Conn. from: Use this field to choose the way the connection code is given. The field can be set to Form (use the input in the Conn. Code field) or Menu (select connection code from a menu).

Conn. Code:

Connection code. Not valid if connection data are to be input via menus.

Clearance:

Clearance in millimeters between the splitting point and the stiffener end. This setting overrides clearance defined by the connection code.

Clearance towards:

Select whether given clearance is measured perpendicularly to the cutting plane or a principal plane.

Endcut from:

Select whether to input the end cut from the form or from menus. If the latter alternative is chosen, the menus will appear after the OK button is pressed.

Endcut Type:

End cut type. Not valid if end cut data are to be input via menus.

Parameters:

End cut parameters, separated by commas.

Conn. Angle:

Select whether the connection angle should be calculated from the cutting plane or a principal plane, or given explicitly in the Parameters field.

Bevel Web:

Bevel on the profile web at the stiffener end.

Bevel Flange:

Bevel on the profile flange at the stiffener end.

Excess:

Excess at the stiffener end.