Download Xtract - DNV GL

Sesam
Program version 3.0
Xtract
1-FEB-2011
3-19
A graph may be presented for the axial force along the beam elements constituting the curved flange of the
bracket. Open the Graph construction dialog by:
Graph > Generate graph
In the Graph construction dialog click the Item type Beams. The only attribute available for graphing for
beams is G-FORCE in position Elements. Select the NXX component. Select a result case (or occurrence if
relevant). Adjust the text for Curve name as desired.
Select all beam elements by checking the option Expand selection in the Graph construction dialog and then
click the first and last beam of the flange (see Section 3.14.1 for a note on selecting beam elements). The
selected beams are labelled by their element numbers and they appear in the Selected items box of the
Graph construction dialog. Verify that all beams along the flange have been picked up. If not then click
Clear in the Graph construction dialog and perform a new selection this time clicking as many times along
the flange as needed to pick up all beams. (The Expand selection feature attempts to find a straight as possible path between the items you click.)
The graph appears in the upper right corner of the display area when Create is clicked. Adjust the appearance of the graph through:
Graph > Options
In the Graph options dialog you may change the title of the graph and its axes, change the background colour of the graph (when set to white the axes and text change to black), make it transparent, take control over
the scaling of the axes and more. Figure 3.18 shows the Graph construction and Graph options dialogs
together with the Xtract window with the graph. The view direction has been changed to another isometric
view by Display > View from > Isometric > +X -Y +Z followed by zooming in a bit.
Other result cases may be added to the same graph by selecting a new result case (the Occurrences box),
checking the Leave old curves option and clicking Create. You may fill the entire viewport with the graph
through:
Graph > Draw graph in > Entire viewport
Making the graph transparent (Transparent plot in Graph options dialog) and having suitable colours for the
graph background (Background button in Graph options dialog) as well as the display background (in Display settings dialog) allow you to present the graph on top of the model as exemplified in Figure 3.19 where
NXX is graphed for four result cases.
Switch off the graph by the toggle:
Graph > Show graph