Updated configuration based on user adjustments: - Reduced from 11 to 9 design variables (disabled blank_backface_angle and inner_circular_rib_dia) - Refined parameter bounds for lateral supports Design Variable Changes: - lateral_inner_angle: min 20.0° (was 25.0°) - lateral_outer_pivot: range 4.0-9.0mm, baseline 5.5mm (was 9.0-12.0mm, baseline 10.40mm) - lateral_middle_pivot: range 12.0-25.0mm (was 15.0-27.0mm) - blank_backface_angle: disabled (fixed at 4.00°) - inner_circular_rib_dia: disabled (fixed at 534.00mm) Documentation Updated: - README.md: Updated design variable table with correct ranges and baselines - STUDY_REPORT.md: Updated to reflect 9 enabled variables - optimization_config.json: User-modified bounds applied Rationale: - Focus optimization on lateral supports and whiffle tree - Fix geometry parameters to reduce search space - Tighter bounds on critical lateral parameters Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
4.1 KiB
4.1 KiB
SAT3_Trajectory - Study Report
Status: pending optimization Optimization Started: pending Optimization Completed: pending Total Trials: pending
Optimization Summary
| Metric | Value |
|---|---|
| Algorithm | TPE (Tree-Parzen Estimator) |
| Design Variables | 9 (enabled) |
| Total Trials | pending |
| Successful FEA | pending |
| Failed FEA | pending |
| Best Trial Number | pending |
| Best Weighted Sum | pending nm |
Best Design
Objectives
| Objective | Best Value | Baseline | Improvement |
|---|---|---|---|
| total_filtered_rms_nm (PRIMARY) | pending nm | 4.30 nm | pending % |
| coma_rms_nm (logged) | pending nm | 9.16 nm | pending % |
| astigmatism_rms_nm (logged) | pending nm | 6.55 nm | pending % |
| trefoil_rms_nm (logged) | pending nm | 6.44 nm | pending % |
| spherical_rms_nm (logged) | pending nm | 10.51 nm | pending % |
| linear_fit_r2 | pending | 1.0000 | pending |
| mass_kg | pending kg | pending kg | pending % |
Design Parameters
| Parameter | Best Value | Baseline | Delta |
|---|---|---|---|
| lateral_inner_angle | pending deg | 26.79 deg | pending |
| lateral_outer_angle | pending deg | 14.64 deg | pending |
| lateral_outer_pivot | pending mm | 5.5 mm | pending |
| lateral_inner_pivot | pending mm | 10.07 mm | pending |
| lateral_middle_pivot | pending mm | 20.73 mm | pending |
| lateral_closeness | pending mm | 11.02 mm | pending |
| whiffle_min | pending mm | 40.55 mm | pending |
| whiffle_outer_to_vertical | pending deg | 75.67 deg | pending |
| whiffle_triangle_closeness | pending mm | 60.00 mm | pending |
Fixed parameters (not optimized):
- blank_backface_angle = 4.00 deg
- inner_circular_rib_dia = 534.00 mm
Mode-Specific Analysis
Which Modes Improved Most?
Analysis pending - shows which aberration types benefited from optimization
Sensitivity Matrix
Analysis pending - shows which modes respond to axial vs lateral loads
R² Validation
Analysis pending - confirms physics model held throughout optimization
Convergence Analysis
Total Filtered RMS vs Trial
Plot pending
Mode-Specific RMS vs Trial
Plot pending - overlay coma, astigmatism, trefoil, spherical
Parameter Evolution
Plot pending - shows how design variables evolved
Key Findings
1. Trajectory Method Validation
Analysis pending
- Did R² stay > 0.95 throughout?
- Were any designs nonlinear?
- Did the physics model hold?
2. Mode-Specific Insights
Analysis pending
- Which modes improved most?
- Which modes are dominant now?
- Does coma reduction correlate with lateral support changes?
3. Comparison with V15 NSGA-II
Analysis pending
- How does best trajectory result compare to V15 Pareto front?
- Is trajectory method competitive?
- What insights does trajectory provide that discrete WFE doesn't?
4. Lateral vs Axial Sensitivity
Analysis pending
- Which parameters affect which modes?
- Are lateral supports primarily controlling coma (as predicted)?
- Are axial supports (whiffle tree) controlling spherical?
Recommendations
Next Steps
Analysis pending - based on results, suggest:
- Whether to proceed with SAT trajectory optimization
- Which modes need further attention
- Whether to refine parameter bounds
- Additional angles to include in trajectory
Parameter Bounds Refinement
Analysis pending
- Did any parameters hit bounds?
- Should ranges be expanded or narrowed?
Future Studies
Analysis pending
- SAT3_Trajectory_SAT (100 FEA + 10K surrogate)
- Multi-objective trajectory (optimize modes separately)
- Trajectory + mass trade-off
Files Generated
3_results/study.db- Optuna database with all trials3_results/optimization.log- Full execution log2_iterations/iter_XXXX/- FEA results for each trial- (Trajectory analysis plots - TBD)
Lessons Learned
To be filled after optimization completes
Report template created: 2026-01-29 To be updated after optimization completes