diff --git a/4 Qualifying Exam/4 Presentation/Outline.md b/4 Qualifying Exam/4 Presentation/Outline.md index fb726d1c..8d344054 100644 --- a/4 Qualifying Exam/4 Presentation/Outline.md +++ b/4 Qualifying Exam/4 Presentation/Outline.md @@ -14,7 +14,81 @@ Ideas taken from https://services.anu.edu.au/files/development_opportunity/Resea - As a result, we need to reverify robustness on built controllers - This exists for structured perturbations. We # Gap In The Literature +### **Slide 1: Robust Control Foundations** + +**Assertion:** Robust control ensures stability despite system discrepancies. +**Evidence:** + +- Controllers are based on physical models that differ from real systems. +- Robust control analyzes resilience to system perturbations. +- Evolved from single-input single-output to multi-input multi-output systems. + _(Cite Doyle, Green, Brunton)_ + +--- + +### **Slide 2: Structured vs. Unstructured Perturbations** + +**Assertion:** Robust control addresses structured and unstructured perturbations differently. +**Evidence:** + +- **Structured:** Based on physical tolerances (e.g., spring rates). +- **Unstructured:** Accounts for unmodeled dynamics and broader uncertainties. + _(Diagram comparing structured and unstructured perturbations)_ + _(Cite Doyle, Green)_ + +--- + +### **Slide 3: Disk-Based Unstructured Uncertainty** + +**Assertion:** Disk-based perturbation quantifies unstructured uncertainties. +**Evidence:** + +- Key equation: $\tilde{P} = (1 + \Delta W_2) P$ + - $P$: Nominal plant. + - $\Delta$: Perturbation transfer function. + - $W_2$: Uncertainty envelope. +- Conditions for $W_2$ and $\Delta$: + - $\left| \frac{\tilde{P}(j\omega)}{P(j\omega)} - 1 \right| \leq \beta |W_2(j\omega)|$ + - $||\Delta||_\infty \leq \beta$. + +_(Include a visual of how $\Delta$ affects $P$)_ + +--- + +### **Slide 4: Current Limitations in Robust Control** + +**Assertion:** Current methods lack discrete examples of unstructured perturbations. +**Evidence:** + +- $\Delta$ is undefined for experimental robustness verification. +- Structured uncertainties are used experimentally but neglect unmodeled dynamics. + _(Cite Farzan, Hamilton)_ + +--- + +### **Slide 5: Diffusion Models as a Solution** + +**Assertion:** Diffusion models can generate unstructured perturbations. +**Evidence:** + +- Forward process transforms data to Gaussian distribution. +- Reverse process generates approximations of target data. +- Applications in protein folding, training data generation. + _(Diagram of forward/reverse processes in diffusion models)_ + _(Cite Sohl-Dickstein, Abramson)_ + +--- + +### **Slide 6: Parallels Between Diffusion Models and This Project** + +**Assertion:** Diffusion models address sparse perturbation generation in engineering. +**Evidence:** + +- Diffusion models create diverse training data from sparse sets. +- Proposed approach: Generate unstructured perturbations from structured sets. + _(Illustration of sparse-to-diverse transformation concept)_ # Goals and Outcomes + # Research Methodology # Metrics of Success # Risks and Contingencies