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Technical Literature

Contribution to EUSPEN 2020 – SIG Meeting on thermal effects

Well, it doesn’t look like much but those two guys on the picture are smiling. And how do we know that? Because they are not wearing a mask! In public! Ah, those were the days …

On this occasion, I presented a simple addition to the modal method for creating compact – though accurate – state space models for mechanical systems submitted to thermal disturbances.

Then, I applied it to a synchrotron light source primary mirror. This is a typical case where the figure of merit (here: slope error) is dominated by the local, quasi-static response (here: bump) which would be grossly underestimated when not including static correction. I also show that the brute-force approach (including hundreds of modes) would very slowly converge to a … very inaccurate value. The presentation can be downloaded here:

This abstract is archived on the EUSPEN repository under number 1219030602.

For those interested, you can reach me using the contact form.

Happy model reduction!