Apply Boundary Conditions
Create boundary conditions that minimally constrain the movement of the bottom surface of the plate and prevent rigid body movement.
The boundary conditions are shown below.
- Select Preprocessor > Loads > Define Loads > Apply > Structural > Displacement > On Areas.
- From the Graphics Window, select the 2 bottom surfaces of the plate and click OK in the Apply U,ROT on Areas dialog box.
- In the dialog box that appears, enter a Displacement value of 0 for UY and click OK.
- Select Preprocessor > Loads > Define Loads > Apply > Structural > Displacement > On Keypoints.
- Select point "A" and set UX and UZ equal to 0.
- Repeat steps 4 and 5, selecting point "B" and setting just UX to 0.