Define a force or moment load using magnitude and a single direction (Simcenter Samcef)

The Magnitude and Direction type lets you define a force or moment load with a magnitude and a single direction.

1. Choose Home tab→Loads and Conditions group→Force or Moment .

2. In the Force or Moment dialog box, select Magnitude and Direction from the Type list.

3. In the Model Objects group, click Select Object and select the geometry or FE entity to which the force or moment will be applied.

4. In the Magnitude group, define the force magnitude in one of these ways:Select Expression to use a constant value or expression to define the magnitude. Select Field to define a force or moment magnitude that varies with frequency, time, or temperature.

5. In the Direction group, select a vector that specifies the direction of the force or moment. ****Along Vector (FORCE/MOMENT)****You define the direction by specifying a vector.****Along 2 Nodes (FORCE1/MOMENT1)****You define the direction of the force by specifying two nodes. These direction nodes define the vector that controls the direction of the force.****Normal to 4 Nodes (FORCE2/MOMENT2)****You define the direction of the force by specifying four nodes. The direction is parallel to the cross product of the vectors from node 1 to node 2, and from node 3 to node 4.

6. (Optional) In the Distribution group, select the method for distributing the force or moment over the geometry or FE entities:Select Total Per Object to apply the magnitude to each selected item and uniformly distribute the magnitude. For example, suppose you apply a 5 N force to 10 polygon edges. The software applies the 5 N force to each of the 10 polygon edges and uniformly distributes each 5 N force along the length of each polygon edge.Select Geometric Distribution to distribute the total force or moment over all the selected items based on the area. All the nodes on the selected items then get a fraction of the force or moment based on the area of the associated elements. Select Spatial to use a unitless field to map the force or moment to the nodes.

7. (Optional) To define a follower force (valid for a structural nonlinear solution only), select the Follower Force check box.For more information, see Follower force and moment load overview (Simcenter Samcef).

8. Click OK.The load is applied to the model.

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Moment dialog box

Force dialog box

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Define a force or moment load using magnitude and a single direction (Simcenter Samcef), Simcenter 3D 2021.1 Series

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