Apply Flux Loads

Constant Value

The value of the load magnitude.

Curve

Select a curve, then specify the value (y scale) to apply to the curve. Optionally, you can enter an xscale if your solver supports it.

Equation

Specify the loading equation. Use the plane and vector tool to specify a direction, then select the coordinate system to which the vector corresponds.

Field Loads

Interpolate and extrapolate loads from existing loads. You can then select the desired elements to which you wish to add loads, and any existing loads on which you wish to base additional forces.

When you create, HyperMesh uses a Green's function with the given boundary loads in order to create the loads on all of the selected nodes. For smoothness, the gradient at the boundary points is enforced to be zero; this ensures that the extrapolated loads remain lower than the input loads. For this reason it is recommended to use representative boundary values as input to be able to capture the peaks reasonably.

注: This version differs from linear interpolation both in the way that the load magnitudes are determined, and also in the fact that it can be applied to nodes outside the boundaries of the chosen existing loads.

Linear Interpolation

Interpolate loads from a saved file or existing loads.

注: Only available for shell elements.

Each row of the input file contains the x,y,z coordinates of the load followed by its three components. The data can be separated by a space or tab.

You can then select the desired nodes to which you wish to add loads, and pick 3 or more existing loads that enclose those nodes. When you interpolate, a linear function is used to create additional loads on the selected nodes, with magnitudes based on the magnitudes of the loads that you had selected.

In the search radius field, specify the search distance to find the loads which are within that distance from a centroid or node on which a load is being interpolated. The nearest 3 loads located within that distance are used to create the load at the centroid or node by linear interpolation. Linear interpolation uses a triangulation method, so if it finds fewer than 3 loads within that distance no interpolation takes place. While reading the initial loads from a file, if linear interpolation is not possible because the search radius is too small, the original loads are simply applied to the nearest centroid or node.

Select fill gap to create a load at every selected element centroid or node irrespective of the size of the search radius.

Loads from files formatted as CSV (Comma Separated Values) or SSV (Space-Separated Values) text files can be interpolated.

Field Loads will not overwrite any existing loads, so you can create an area of loads via linear interpolation and then use field loads to expand the load area without changing the loads already inside of the area.