COMSOL 6.4 - Edge Load

Use an node to apply an edge or body load on the rotor.

Select a — or to specify the load in the appropriate frame.

•

Since the beam rotor is modeled in the spatial frame, a stationary load in a frame works as a rotating load in the model. This load changes its direction with the angular velocity of the rotor. A stationary load in the frame is a true static load for beam rotor.

•

For a frequency-domain analysis, a load in the frame is phase shifted to give the effect of rotation.

•

For a stationary analysis, has no influence on the analysis.

Force

Select a — , , or . Then enter values or expressions for the load components based on the selection.

•

For , you can define a distributed force over the volume. In this case the load is scaled by cross section area of the rotor to provide the force per reference length over the selected edges.

•

For , you can define a distributed force over the selected edge.

•

For , the total force is divided by the length of the edges where the load is active in order to obtain the distributed load.


Load Type	variable	SI unit
Force per reference volume	fV	N/m3
Force per reference length	fL	N/m
Total force	Ftot	N


	After selecting a Load type, the Load list normally only contains User defined. When combined with another physics interface that can provide this type of load, it is also possible to choose a predefined load from this list.

Moment

Enter values or expressions for the components of the mL.

•

You can add the Phase subnode to specify the phase of this load in a frequency-domain analysis.

Location in User Interface

Context Menus

Ribbon

Physics tab with selected: