Rockwell Automation Motion Analyzer Software User Manual
Page 116
116
Rockwell Automation Publication MOTION-UM004B-EN-P - October 2012
Chapter 2
Sizing Your System
)
Coarse Data
Select this option if the size of the profile segments is sufficient to detect significant changes to force or inertia during each time slice.
Fine Data
Select this option if a finer resolution of the profile segments is needed to detect significant changes to force or inertia during each
time slice.
Profile Table
You can copy spreadsheet data and paste into this grid. Click the Time column, Row zero, and then press Ctrl + v.
Delta T Column
Profile segment duration (dT).
Velocity Column
Final velocity at the end of the profile segment. Row zero is reserved for the start velocity only, hence the time
and S-curve cells are grayed out.
Acc. Pk/Ave
Acceleration Peak/Average. The following values apply:
1 = Trapezoidal acceleration
2 = S-curve acceleration
>1 or <2 = partial S-curve
Insert
Insert a new, blank row at the highlighted position.
Delete
Delete the row at the highlighted position.
Clear All
Remove all profile data.
Display
Click to show the load profile for checking purposes.
Maximum Fine
Segments
Specify the maximum number of profile segments that you would like the coarse segments divided into.
)
Peak Inertia
Calculated maximum reflected inertia at the crankshaft.
Peak Ext. + Grav.
Torque
Peak External Force + Gravity Torque is the calculated peak torque, generated from the external linear force and gravity.
Cycle Time
Calculated cycle time for the specified load profile.
Minimum Time
Slice
Minimum time slice required for the simulation.
Apply
Click to apply the load profile and close the window.
Cancel
Click to close the window without applying any data.
Chart Display Window
(label 4 in
)
Shows the crank velocity, the inertia that is reflected to the crankshaft, and the crank torque due to external influences such as gravity and applied force.
These are the parameters that are applied. By checking Show Resultant Load Torque, the associated value can also be displayed.
(1) The Animated Display at the upper left corner of the template is provided for reference to make sure that entered data is accurate and particularly that the orientation of the crank is correct. The animation
rotates the crank so that the system may be better visualized. In this example, the X/Y plane is horizontal.
(2) Use the
on
to calculate the inertia value for your application, if the value is not readily available.
Table 68 - Four Bar Linkage Properties (continued)
Parameter
Description