Loads and Supports
Use the Loads tools on the Structure ribbon to apply forces, pressures, torques, and supports to your model.
Before running an analysis or optimization, you need to define at least one load case, which is a set of loads and displacements that act on your model. You may also want to create multiple load cases with different loads and displacements to understand how this impacts the results of an analysis or optimization.
As a general rule, loads and supports should be applied to non-design spaces rather than design spaces. You can also move loads and supports away from your model and connect them to geometry features using connectors.