169 lines
4.1 KiB
Markdown
169 lines
4.1 KiB
Markdown
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# SAT3_Trajectory - Study Report
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**Status:** _pending optimization_
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**Optimization Started:** _pending_
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**Optimization Completed:** _pending_
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**Total Trials:** _pending_
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---
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## Optimization Summary
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| Metric | Value |
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|--------|-------|
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| Algorithm | TPE (Tree-Parzen Estimator) |
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| Design Variables | 11 |
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| Total Trials | _pending_ |
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| Successful FEA | _pending_ |
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| Failed FEA | _pending_ |
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| Best Trial Number | _pending_ |
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| Best Weighted Sum | _pending_ nm |
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---
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## Best Design
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### Objectives
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| Objective | Best Value | Baseline | Improvement |
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|-----------|------------|----------|-------------|
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| **total_filtered_rms_nm** (PRIMARY) | _pending_ nm | 4.30 nm | _pending_ % |
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| coma_rms_nm (logged) | _pending_ nm | 9.16 nm | _pending_ % |
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| astigmatism_rms_nm (logged) | _pending_ nm | 6.55 nm | _pending_ % |
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| trefoil_rms_nm (logged) | _pending_ nm | 6.44 nm | _pending_ % |
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| spherical_rms_nm (logged) | _pending_ nm | 10.51 nm | _pending_ % |
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| linear_fit_r2 | _pending_ | 1.0000 | _pending_ |
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| mass_kg | _pending_ kg | _pending_ kg | _pending_ % |
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### Design Parameters
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| Parameter | Best Value | Baseline | Delta |
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|-----------|------------|----------|-------|
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| lateral_inner_angle | _pending_ deg | 26.79 deg | _pending_ |
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| lateral_outer_angle | _pending_ deg | 14.64 deg | _pending_ |
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| lateral_outer_pivot | _pending_ mm | 10.40 mm | _pending_ |
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| lateral_inner_pivot | _pending_ mm | 10.07 mm | _pending_ |
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| lateral_middle_pivot | _pending_ mm | 20.73 mm | _pending_ |
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| lateral_closeness | _pending_ mm | 11.02 mm | _pending_ |
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| whiffle_min | _pending_ mm | 40.55 mm | _pending_ |
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| whiffle_outer_to_vertical | _pending_ deg | 75.67 deg | _pending_ |
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| whiffle_triangle_closeness | _pending_ mm | 60.00 mm | _pending_ |
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| blank_backface_angle | _pending_ deg | 4.15 deg | _pending_ |
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| inner_circular_rib_dia | _pending_ mm | 534.00 mm | _pending_ |
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---
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## Mode-Specific Analysis
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### Which Modes Improved Most?
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_Analysis pending - shows which aberration types benefited from optimization_
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### Sensitivity Matrix
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_Analysis pending - shows which modes respond to axial vs lateral loads_
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### R² Validation
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_Analysis pending - confirms physics model held throughout optimization_
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---
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## Convergence Analysis
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### Total Filtered RMS vs Trial
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_Plot pending_
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### Mode-Specific RMS vs Trial
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_Plot pending - overlay coma, astigmatism, trefoil, spherical_
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### Parameter Evolution
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_Plot pending - shows how design variables evolved_
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---
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## Key Findings
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### 1. Trajectory Method Validation
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_Analysis pending_
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- Did R² stay > 0.95 throughout?
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- Were any designs nonlinear?
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- Did the physics model hold?
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### 2. Mode-Specific Insights
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_Analysis pending_
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- Which modes improved most?
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- Which modes are dominant now?
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- Does coma reduction correlate with lateral support changes?
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### 3. Comparison with V15 NSGA-II
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_Analysis pending_
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- How does best trajectory result compare to V15 Pareto front?
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- Is trajectory method competitive?
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- What insights does trajectory provide that discrete WFE doesn't?
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### 4. Lateral vs Axial Sensitivity
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_Analysis pending_
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- Which parameters affect which modes?
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- Are lateral supports primarily controlling coma (as predicted)?
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- Are axial supports (whiffle tree) controlling spherical?
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---
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## Recommendations
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### Next Steps
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_Analysis pending - based on results, suggest:_
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1. Whether to proceed with SAT trajectory optimization
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2. Which modes need further attention
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3. Whether to refine parameter bounds
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4. Additional angles to include in trajectory
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### Parameter Bounds Refinement
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_Analysis pending_
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- Did any parameters hit bounds?
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- Should ranges be expanded or narrowed?
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### Future Studies
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_Analysis pending_
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- SAT3_Trajectory_SAT (100 FEA + 10K surrogate)
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- Multi-objective trajectory (optimize modes separately)
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- Trajectory + mass trade-off
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---
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## Files Generated
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- `3_results/study.db` - Optuna database with all trials
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- `3_results/optimization.log` - Full execution log
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- `2_iterations/iter_XXXX/` - FEA results for each trial
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- _(Trajectory analysis plots - TBD)_
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---
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## Lessons Learned
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_To be filled after optimization completes_
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---
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*Report template created: 2026-01-29*
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*To be updated after optimization completes*
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