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Thermally induced focal shift - solid mechanics does not seem to be effective
Posted 9 ago 2017, 04:53 GMT-4 Ray Optics Version 5.2a 1 Reply
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Hello,
I am trying to understand how Solid Mechanics in the ''thermally induced focal shift'' example works. In order to make sure that deformation (caused by thermal expansion) affects the ray trajectories, I assigned zero value for the expansion coefficient. However nothing has changed in the results. It seems that ray trajectories are changing only because the refractive index is defined temperature dependent, and they are not effected by the shape of the expanded lens. It seems that Ray Optics is using the original geometry no matter what happens in the Solid Mechanics.
Should we add a Moving mesh or a Deformed geometry so that the deformation in the Solid Mechanis can be effective in the Ray Optics?
Thanks in advance,
Emine
I am trying to understand how Solid Mechanics in the ''thermally induced focal shift'' example works. In order to make sure that deformation (caused by thermal expansion) affects the ray trajectories, I assigned zero value for the expansion coefficient. However nothing has changed in the results. It seems that ray trajectories are changing only because the refractive index is defined temperature dependent, and they are not effected by the shape of the expanded lens. It seems that Ray Optics is using the original geometry no matter what happens in the Solid Mechanics.
Should we add a Moving mesh or a Deformed geometry so that the deformation in the Solid Mechanis can be effective in the Ray Optics?
Thanks in advance,
Emine
1 Reply Last Post 15 ago 2017, 07:08 GMT-4
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Posted:
7 years ago
I believe that I found the answer to my question. Instead of deleting this post, I would like to write down my solution in case it may help someone else:
If you want your geometry to change with the deformation, you need to ''include geometric nonlinearity'' in the study step.
Here is the link for more information:
www.comsol.com/blogs/how-to-reuse-a-deformed-shape-as-a-geometry-input/
If you want your geometry to change with the deformation, you need to ''include geometric nonlinearity'' in the study step.
Here is the link for more information:
www.comsol.com/blogs/how-to-reuse-a-deformed-shape-as-a-geometry-input/