diff --git a/docs/index.html b/docs/index.html index 551b1b2..6813a41 100644 --- a/docs/index.html +++ b/docs/index.html @@ -4,7 +4,7 @@ "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> - + Simscape Model of the Nano-Active-Stabilization-System @@ -202,50 +202,28 @@ @@ -265,13 +243,14 @@ for the JavaScript code in this tag.
  • 4. Kinematics of the Station (link)
  • 5. Computation of the positioning error of the Sample (link)
  • 6. Tuning of the Dynamics of the Simscape model (link)
  • -
  • 7. Disturbances (link)
  • -
  • 8. Tomography Experiment (link)
  • -
  • 9. Effect of support’s compliance uncertainty on the plant (link)
  • -
  • 10. Active Damping Techniques on the Uni-axial Model (link)
  • -
  • 11. Active Damping Techniques on the full Simscape Model (link)
  • -
  • 12. Control of the Nano-Active-Stabilization-System (link)
  • -
  • 13. Useful Matlab Functions (link)
  • +
  • 7. Compensating Gravity forces to start simulation at steady state (link)
  • +
  • 8. Disturbances (link)
  • +
  • 9. Simulation of Experiment (link)
  • +
  • 10. Effect of support’s compliance uncertainty on the plant (link)
  • +
  • 11. Effect of Experimental conditions on the plant dynamics (link)
  • +
  • 12. Active Damping Techniques on the full Simscape Model (link)
  • +
  • 13. Control of the Nano-Active-Stabilization-System (link)
  • +
  • 14. Useful Matlab Functions (link)
  • @@ -349,10 +328,27 @@ This is explained here. -
    -

    7 Disturbances (link)

    +
    +

    7 Compensating Gravity forces to start simulation at steady state (link)

    +When gravity is included in the model, the simulation does not start at steady state. +

    + +

    +This can be problematic, especially when using a soft nano-hexapod as the deflection due to gravity will be quite large. +

    + +

    +A technique is described in this document in order to compensate the gravity forces and start the simulation at steady state without deflection. +

    +
    +
    + +
    +

    8 Disturbances (link)

    +
    +

    The effect of disturbances on the position of the micro-station have been measured. These are now converted to force disturbances using the Simscape model.

    @@ -367,40 +363,41 @@ We also discuss how the disturbances are implemented in the model.
    -
    -

    8 Tomography Experiment (link)

    -
    +
    +

    9 Simulation of Experiment (link)

    +

    Now that the dynamics of the Model have been tuned and the Disturbances have included, we can simulate experiments.

    -Tomography experiments are simulated and the results are presented here. +Experiments are simulated and the results are presented here.

    -

    9 Effect of support’s compliance uncertainty on the plant (link)

    -
    +

    10 Effect of support’s compliance uncertainty on the plant (link)

    +

    In this document, is studied how uncertainty on the micro-station compliance will affect the uncertainty of the isolation platform to be designed.

    -
    -

    10 Active Damping Techniques on the Uni-axial Model (link)

    -
    +
    +

    11 Effect of Experimental conditions on the plant dynamics (link)

    +

    -Active damping techniques are applied to the Uniaxial Simscape model. +In this document, the effect of all the experimental conditions (rotation speed, sample mass, …) on the plant dynamics are studied. +Conclusion are drawn about what experimental conditions are critical on the variability of the plant dynamics.

    -

    11 Active Damping Techniques on the full Simscape Model (link)

    -
    +

    12 Active Damping Techniques on the full Simscape Model (link)

    +

    Active damping techniques are applied to the full Simscape model.

    @@ -408,12 +405,18 @@ Active damping techniques are applied to the full Simscape model.
    -

    12 Control of the Nano-Active-Stabilization-System (link)

    -
    -
    -

    13 Useful Matlab Functions (link)

    +

    13 Control of the Nano-Active-Stabilization-System (link)

    +In this file are gathered all studies about the control the Nano-Active-Stabilization-System. +

    +
    +
    + +
    +

    14 Useful Matlab Functions (link)

    +
    +

    Many matlab functions are shared among all the files of the projects.

    @@ -425,7 +428,7 @@ These functions are all defined here.

    Author: Dehaeze Thomas

    -

    Created: 2020-03-25 mer. 19:21

    +

    Created: 2020-04-01 mer. 16:28

    diff --git a/org/index.org b/org/index.org index 4e96e0e..d8fd953 100644 --- a/org/index.org +++ b/org/index.org @@ -69,6 +69,13 @@ From dynamical measurements perform on the real positioning station, we tune the This is explained [[./identification.org][here]]. +* Compensating Gravity forces to start simulation at steady state ([[file:compensation_gravity_forces.org][link]]) +When gravity is included in the model, the simulation does not start at steady state. + +This can be problematic, especially when using a soft nano-hexapod as the deflection due to gravity will be quite large. + +A technique is described in this document in order to compensate the gravity forces and start the simulation at steady state without deflection. + * Disturbances ([[./disturbances.org][link]]) The effect of disturbances on the position of the micro-station have been measured. These are now converted to force disturbances using the Simscape model. @@ -77,21 +84,24 @@ This is discussed [[./disturbances.org][here]]. We also discuss how the disturbances are implemented in the model. -* Tomography Experiment ([[./experiments.org][link]]) +* Simulation of Experiment ([[./experiments.org][link]]) Now that the dynamics of the Model have been tuned and the Disturbances have included, we can simulate experiments. -Tomography experiments are simulated and the results are presented [[./experiments.org][here]]. +Experiments are simulated and the results are presented [[./experiments.org][here]]. * Effect of support's compliance uncertainty on the plant ([[file:uncertainty_support.org][link]]) In this document, is studied how uncertainty on the micro-station compliance will affect the uncertainty of the isolation platform to be designed. -* Active Damping Techniques on the Uni-axial Model ([[./active_damping_uniaxial.org][link]]) -Active damping techniques are applied to the Uniaxial Simscape model. +* Effect of Experimental conditions on the plant dynamics ([[file:uncertainty_experiment.org][link]]) +In this document, the effect of all the experimental conditions (rotation speed, sample mass, ...) on the plant dynamics are studied. +Conclusion are drawn about what experimental conditions are critical on the variability of the plant dynamics. * Active Damping Techniques on the full Simscape Model ([[file:control_active_damping.org][link]]) Active damping techniques are applied to the full Simscape model. * Control of the Nano-Active-Stabilization-System ([[file:control.org][link]]) +In this file are gathered all studies about the control the Nano-Active-Stabilization-System. + * Useful Matlab Functions ([[./functions.org][link]]) Many matlab functions are shared among all the files of the projects.