This function provides options to plot tool force vs
time curve, and force vs displacement from home position curve, which helps the
user to analyze and predicate the tonnage. The control window is illustrated in
Figure
6.11.1. The function loads the result file of LS-DYNA
analysis automatically: RCFORC and RBDOUT. The steps are as follows:
1)
Select RCFORC in the Case List by mouse, at the same
time, relevant RBDOUT is selected if toggle on Linkage option. And all relevant
tools and drawbeads will be listed in the Tool List.
2)
Select any tool in the Tool List, the tool will be
highlighted in the screen if toggle on Highlight Part option. The user can make
the multi-selection by Ctrl and the left key.
3)
Select curve type:force vs time
curve or force vs displacement from home position curve.
4)
Select Force Direction option.
5)
Define Unit
6)
Select the Plot button to generate the curve.
NOTE: If the index file, RCFORC file and RBDOUT file have existed in the directory of the model result file, RCFORC file and RBDOUT file will be loaded automatically.
Figure 6.11.1 Tonnage Prediction control window
l LOAD INDEX FILE
This
function is used to load idx file. The user can run eta/post and use the
function to straight read RCFORC and RBDOUT. In addition, if the user opens
multistage result file, the user must read RCFORC and RBDOUT of all stages by
the function.
l CASE LIST
This
function is used to list RCFORC and RBDOUT.
l LINKAGE
This
option is used to keep the same stage of RCFORC and RBDOUT.
l TOOL LIST
This
function is used to list all tools and drawbeads of index file, and supports
multi-selection.
l HIGHLIGHT PART
This
option is used to highlight the selected tool.
l X: TIME/DISPLACEMENT
This option is used to define curve type: force vs
time curve or force vs displacement from home position curve.
l Y:FORCE DIRECTION
This
option is used to define tool force direction: total, x, y, and z.
l UNIT
This
option is used to convert force, length, and time unit.
l PLOT
This option is used to generate new curve. Select the
button to pop up the curve window, as show in Figure
6.11.2. If the user plots two or several curves once, the
user needs the multi-selection in Tool List once.
Figure 6.11.2 Curve window of Tonnage predication