Linear Acceleration Load—Generative Design
A linear acceleration load can be applied to a body, or multiple bodies in a model. The linear acceleration command is available in the Loads group when a structural simulation study is active.
To Define a Linear Acceleration Load
1. Click > 
Linear Acceleration. The Linear Acceleration Load dialog box opens.
Linear Acceleration. The Linear Acceleration Load dialog box opens.2. Specify a name for the load, or use the default name. Optionally click the color swatch adjacent to the Name box to change the color of the icon, the distribution, or the text displayed for the load.
3. The default coordinate system of the model is the reference coordinate system and is displayed in the Coordinate system collector. If the model does not have a default coordinate system then the 
button is not available and the Coordinate system collector is empty. You can select any coordinate system, or create a UCS (user coordinate system).and designate it as the default coordinate system.
button is not available and the Coordinate system collector is empty. You can select any coordinate system, or create a UCS (user coordinate system).and designate it as the default coordinate system.You can also select an alternative reference coordinate system from the Model Tree or Graphics Window.
Click to return to using the default coordinate system of the model.
to return to using the default coordinate system of the model.4. Select one of the following options to define the magnitude and direction of the load:
◦ Magnitude and direction—Specify the value of the unit vectors for direction by typing a value of 0, 1 or -1 in the X, Y, or Z field.
Alternatively click 
and select a linear edge or planar surface to specify the direction of acceleration. The value of the unit vector is displayed in the X, Y, or Z field.
and select a linear edge or planar surface to specify the direction of acceleration. The value of the unit vector is displayed in the X, Y, or Z field.Specify the magnitude of acceleration in the Magnitude entry box.
◦ Directional components—Specify the components of moment for each coordinate direction X, Y, or Z. The resultant direction and magnitude of acceleration is determined from the values you specify for each coordinate. If you enter a positive value the acceleration is applied in the same direction as the vector. If you use a negative value, the direction of acceleration opposes the vector.
5. Select units of acceleration from the list or accept the default units.
6. Click OK to create the load and save it.