You can create a gravity load to define a uniform acceleration in a fixed direction. A gravity load is applied to the whole model. ABAQUS calculates the loading using the acceleration magnitude that you enter in the gravity load definition and the density specified in the material definition.
To create or edit a gravity load:
Display the gravity load editor using one of the following methods:
To create a new gravity load, follow the procedure outlined in “Creating loads,” Section 16.8.1 (Category: Mechanical; Types for Selected Step: Gravity).
To edit an existing gravity load using menus or managers, see “Editing step-dependent objects,” Section 3.4.12.
In the Component 1, Component 2, and (if you are working with a model in three-dimensional space) Component 3 text fields, enter the components of the acceleration in each direction:
If you are working in three-dimensional or two-dimensional space, the Component 1, Component 2, and Component 3 fields correspond to the 1-, 2-, and (if applicable) 3-directions.
If you are working in axisymmetric space, only the Component 2 text field is available. Component 2 corresponds to the axial direction.
If you leave a text field blank, a value of zero is assigned to that direction automatically. However, you must enter at least one nonzero component in the editor to define the load.
If desired, click the arrow to the right of the Amplitude field, and select the amplitude of your choice from the list that appears. Alternatively, you can click Create to create a new amplitude. (See Chapter 38, “The Amplitude toolset,” for more information.)
Click OK to save your data and to exit the editor.
