vault backup: 2024-11-25 10:28:14

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Dane Sabo 2024-11-25 10:28:14 -05:00
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@ -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 - As a result, we need to reverify robustness on built controllers
- This exists for structured perturbations. We - This exists for structured perturbations. We
# Gap In The Literature # 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 # Goals and Outcomes
# Research Methodology # Research Methodology
# Metrics of Success # Metrics of Success
# Risks and Contingencies # Risks and Contingencies