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Update CSS => bot margin tables

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Thomas Dehaeze 2020-05-08 10:19:09 +02:00
parent 2e584e4e76
commit 3c75adf6c4
3 changed files with 579 additions and 550 deletions
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css/custom.css
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@ -9,5 +9,6 @@
} }
table { table {
margin: auto; margin-left: auto;
margin-right: auto;
} }

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@ -2031,28 +2031,34 @@ The simulation is considered to be fairly realistic as the model used has been s
Table summarizing the nano-hexapod wanted characteristics: Table summarizing the nano-hexapod wanted characteristics:
- Dimensions (Figure [[fig:nano_hexapod_size]]) - Dimensions (Figure [[fig:nano_hexapod_size]]):
- Maximum Height: 90mm
- Diameter of the bottom platform: 300mm
- Diameter of the top platform: 200mm
- Stiffness: - Stiffness:
- Resonances should be between 5Hz and 50Hz - Resonances should stay between 5Hz and 50Hz for payload masses up to 50kg
- - This corresponds to strut stiffnesses of $k \approx 10^5 - 10^6\,[N/m]$
- Flexible joints: - Flexible joints:
- To be optimized such that the above resonances are in the required range - Axial Stiffness: $K_a > 10^7\,[N/m]$
- - Bending Stiffness: $K_b < 50\,[Nm/rad]$
- Torsion Stiffness: $K_t < 50\,[Nm/rad]$
- Required angular stroke: can be estimated with simulations - Required angular stroke: can be estimated with simulations
- Force - Force:
- Weight: $60\,kg \rightarrow 600\,N \rightarrow 60\,N$ on each actuator - Weight: $60\,kg \rightarrow 600\,N \rightarrow 60\,N$ on each actuator
- Dynamic: few Newtons - Dynamic: few Newtons
- Estimation of the required stroke: - Estimation of the required stroke:
- From simulation (i.e. for disturbance rejection alone), $\pm 5 \mu m$ is good - From simulation (i.e. for disturbance rejection alone), $\pm 5 \mu m$
- However, the required stroke probably depends on two other factors: - However, the required stroke probably depends on two other factors:
- Static positioning errors of the stages - Static positioning errors of the stages
- Maximum tracking errors of the stages (mainly translation stage and tilt stage). - Maximum tracking errors of the stages (mainly translation stage and tilt stage).
This is probably more difficult to obtain. This is probably more difficult to obtain.
However, by limiting the acceleration of these stages, we may limit the dynamic tracking errors to acceptable levels However, by limiting the acceleration of these stages, we may limit the dynamic tracking errors to acceptable levels
- Sensors to be included - If the chosen technology allows $\pm 50 \mu m$ that would be safer
- Sensors to be included:
-
#+name: fig:nano_hexapod_size #+name: fig:nano_hexapod_size
#+caption: First implementation of the nano-hexapod / deflector and coolsed sample plate support #+caption: First implementation of the nano-hexapod / metrology reflector and sample interface
[[file:figs/nano_hexapod_size.png]] [[file:figs/nano_hexapod_size.png]]
** Sensor Noise introduced by the Metrology ** Sensor Noise introduced by the Metrology
@ -2074,6 +2080,9 @@ This means that above the suspension mode of the granite (here around 2Hz), the
Sensible to detector motion? Sensible to detector motion?
** Micro Station Architecture
https://tdehaeze.github.io/nass-simscape/alternative-micro-station-architecture.html
** Others Factors that may limit the performances ** Others Factors that may limit the performances
Cable forces? Cable forces?