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Minor modifications after integration in the Thesis

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Thomas Dehaeze 2024-03-19 14:03:01 +01:00
parent 35f695b0f6
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nass-uniaxial-model.org
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@ -92,8 +92,7 @@
(setq org-latex-subtitle-format "\\subtitle{%s}")
(setq org-export-before-parsing-hook '(org-ref-glossary-before-parsing
org-ref-acronyms-before-parsing
tdh-org-ref-extract-bibtex-to-file))
org-ref-acronyms-before-parsing))
#+END_SRC
* Introduction :ignore:
@ -117,9 +116,9 @@ Once the system is well damped, a feedback position controller is applied, and t
Two key effects that may limit that positioning performances are then considered: the limited micro-station compliance (Section ref:sec:uniaxial_support_compliance) and the presence of dynamics between the nano-hexapod and the sample's point of interest (Section ref:sec:uniaxial_payload_dynamics).
Conclusion remarks are given in Section ref:sec:conclusion.
Conclusion remarks are given in Section ref:sec:uniaxial_conclusion.
#+name: tab:section_matlab_code
#+name: tab:uniaxial_section_matlab_code
#+caption: Report sections and corresponding Matlab files
#+attr_latex: :environment tabularx :width 0.6\linewidth :align lX
#+attr_latex: :center t :booktabs t
@ -5594,21 +5593,19 @@ It will be therefore important to take special care when designing sampling envi
#+end_important
* Conclusion
<<sec:conclusion>>
<<sec:uniaxial_conclusion>>
In this study, a uniaxial model of the nano-active-stabilization-system has been tuned both from dynamical measurements (Section ref:sec:micro_station_model) and from disturbances measurements (Section ref:sec:uniaxial_disturbances).
It has been shown that three active damping techniques can be used to critically damp the nano-hexapod resonances (Section ref:sec:uniaxial_active_damping).
However, this model does not allows to determine which one is most suited to this application.
Finally, position feedback controllers have been developed for three considered nano-hexapod stiffnesses.
Position feedback controllers have been developed for three considered nano-hexapod stiffnesses (Section ref:sec:uniaxial_position_control).
These controllers were shown to be robust to the change of sample's masses, and to provide good rejection of disturbances.
It has been found that having a soft nano-hexapod makes the plant dynamics easier to control (because decoupled from the micro-station dynamics) and requires less position feedback bandwidth to fulfill the requirements.
It has been found that having a soft nano-hexapod makes the plant dynamics easier to control (because decoupled from the micro-station dynamics, see Section ref:sec:uniaxial_support_compliance) and requires less position feedback bandwidth to fulfill the requirements.
The moderately stiff nano-hexapod ($k_n = 1\,N/\mu m$) is requiring a bit more position feedback bandwidth, but it still seems to give acceptable results.
However, the stiff nano-hexapod is the most complex to control and gives the worst positioning performance.
# TODO - Add summary table of advantages and disadvantages of nano-hexapod stiffnesses
* Bibliography :ignore:
#+latex: \printbibliography[heading=bibintoc,title={Bibliography}]

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nass-uniaxial-model.pdf
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nass-uniaxial-model.tex
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% Created 2023-06-30 Fri 20:00
% Created 2023-07-03 Mon 17:24
% Intended LaTeX compiler: pdflatex
\documentclass[a4paper, 10pt, DIV=12, parskip=full, bibliography=totoc]{scrreprt}
@ -943,12 +943,11 @@ In this study, a uniaxial model of the nano-active-stabilization-system has been
It has been shown that three active damping techniques can be used to critically damp the nano-hexapod resonances (Section \ref{sec:uniaxial_active_damping}).
However, this model does not allows to determine which one is most suited to this application.
Finally, position feedback controllers have been developed for three considered nano-hexapod stiffnesses.
Position feedback controllers have been developed for three considered nano-hexapod stiffnesses (Section \ref{sec:uniaxial_position_control}).
These controllers were shown to be robust to the change of sample's masses, and to provide good rejection of disturbances.
It has been found that having a soft nano-hexapod makes the plant dynamics easier to control (because decoupled from the micro-station dynamics) and requires less position feedback bandwidth to fulfill the requirements.
It has been found that having a soft nano-hexapod makes the plant dynamics easier to control (because decoupled from the micro-station dynamics, see Section \ref{sec:uniaxial_support_compliance}) and requires less position feedback bandwidth to fulfill the requirements.
The moderately stiff nano-hexapod (\(k_n = 1\,N/\mu m\)) is requiring a bit more position feedback bandwidth, but it still seems to give acceptable results.
However, the stiff nano-hexapod is the most complex to control and gives the worst positioning performance.
\printbibliography[heading=bibintoc,title={Bibliography}]
\end{document}