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# How to apply a moving load?

## How to apply a moving load?

(OP)
I was wondering if someone knows how to apply a moving pressure loading to part of model surface. Can I apply to certain number of elements at one time at one location and then shift to next location? Thanks.

### RE: How to apply a moving load?

Create a analytical rigid surface (a separate part) and assemble it together. The analytical rigid surface part will be the "loading patch". Create surface to surface contact between the parts and constrain/load the parts as appropriate.

### RE: How to apply a moving load?

(OP)
Thanks a lot, Brep. But that will bring up one question. If an analytican rigid surface is tied to model surface which is deformable, will it cause deformation incompatibility?

### RE: How to apply a moving load?

no problem,
contact surface pairs can be
rigid vs deformation
deformation vs deformation

but not
rigid vs rigid

### RE: How to apply a moving load?

I have the same question like ENGLIAO. But there is a moving HEAT loading instead of a moving pressure loading. How can i do the simulation then? Thanks.

### RE: How to apply a moving load?

For a moving heat load I'd consider using a coupled temperature displacement analysis andhave one body as the heat source and then move that body. You can set up a contact gap conductivity so that as the gap increased, or the body moved away a certain distance, then the conductivity went to zero. A radiation type heat source would be dealt with by the distance apart between the two surfaces for the view factor given.

corus

### RE: How to apply a moving load?

Thanks a lot, corus. I will try in this way.

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