Coordinate Systems
The Global Coordinate System
Directional input refers by default to the global coordinate system
(X, Y, and Z), which is based on Plane1 with its origin located at the
Origin of the part or assembly. Plane1 is the first plane that appears
in the FeatureManager design tree and can have a different name. The reference
triad shows the global X-, Y-, and Z-directions.
The figure below illustrates the relationship between the global coordinate
system and Plane1, Plane2, and Plane3.
Where X is Direction 1 of Plane 1, Y is Direction 2 of Plane 1, and,
Z is the Normal to Plane 1.
The global coordinate system can be displayed on any plot by right-clicking
its icon and selecting Axes.
Local Coordinate Systems
Local coordinate systems are coordinate systems other than the global
coordinate system. You can specify restraints and loads in any desired
direction. For example, when defining a force on a cylindrical face, you
can apply it in the radial, circumferential, or axial directions. Similarly
if you choose a spherical face, you can choose the radial, longitude,
or latitude directions. In addition, you can use reference planes and
axes.
When viewing results, you can also use reference planes and axes. For
example, you can view stresses on a cylindrical face in the radial direction.
Refer to the Loads and Restraints
section for more details.