Bushing
Tools → Curve Manager
Generates a bushing property file. Learn about Working with Bushings.
You can create a linear bushing by entering a slope (stiffness/angular stiffness), or define a force-deflection characteristic using a mathematical formula. You can also enter data in a spreadsheet and view and edit the corresponding curve in the plotting window by dragging Hotpoints. See Modifying Curves.
A bushing property file lists:
■Six curves (three translational and three rotational characteristics)
■Six damping factors defined as constants in the three axial directions
The following table explains the default options that are common to both the plot and table Curve Manager views. Learn about Curve Manager.
For the option: | Do the following: |
|---|---|
Slope | Enter the slope of the curve that defines the velocity-force relation. |
Limits | Enter the upper and lower x values for the curve. |
Points/ Segs | Specify the number of points or segments for the curve. You can: ■Enter the number of points or segments. ■Right-click  and select  to create a function expression that defines the vertical (y) values in terms of the horizontal (x) values. You can use only one independent variable (x) to describe the functional relation. You can use any valid FORTRAN mathematical operator, such as SIN, **2, and so on. |
Damping | Enter the damping values for each rotational and translational component as a real number, or, if you want, you can compute those values as a percentage of the stiffness (slope of the force/deflection curve) at 0.0 deflection. |
Note: | The pull-down menus in the upper left corner of the Curve Manager allow you to select an active plot (translational and rotational stiffnesses) and components (x-y-z axis). |