ec5e42d733
Major improvements to telescope mirror optimization workflow: Assembly FEM Workflow (solve_simulation.py): - Fixed multi-part assembly FEM update sequence - Use ImportFromFile() for reliable expression updates - Add DuplicateNodesCheckBuilder with MergeOccurrenceNodes=True - Switch to Foreground solve mode for multi-subcase solutions - Add detailed logging and diagnostics for node merge operations Zernike RMS Calculation: - CRITICAL FIX: Use correct surface-based RMS formula - Global RMS = sqrt(mean(W^2)) from actual WFE values - Filtered RMS = sqrt(mean(W_residual^2)) after removing low-order fit - This matches zernike_Post_Script_NX.py (optical standard) - Previous WRONG formula was: sqrt(sum(coeffs^2)) - Add compute_rms_filter_j1to3() for optician workload metric Subcase Mapping: - Fix subcase mapping to match NX model: - Subcase 1 = 90 deg (polishing orientation) - Subcase 2 = 20 deg (reference) - Subcase 3 = 40 deg - Subcase 4 = 60 deg New Study: M1 Mirror Zernike Optimization - Full optimization config with 11 design variables - 3 objectives: rel_filtered_rms_40_vs_20, rel_filtered_rms_60_vs_20, mfg_90_optician_workload - Neural surrogate support for accelerated optimization Documentation: - Update ZERNIKE_INTEGRATION.md with correct RMS formula - Update ASSEMBLY_FEM_WORKFLOW.md with expression import and node merge details - Add reference scripts from original zernike_Post_Script_NX.py 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
125 lines
3.0 KiB
JSON
125 lines
3.0 KiB
JSON
{
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"$schema": "Atomizer Optimization Config - Telescope Mirror Zernike Optimization",
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"_description": "Example configuration for optimizing telescope mirror support structures using Zernike wavefront error metrics",
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"study_name": "mirror_wfe_optimization",
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"design_variables": [
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{
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"name": "support_ring_radius",
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"expression_name": "support_radius",
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"min": 150.0,
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"max": 250.0,
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"units": "mm",
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"description": "Radial position of support ring"
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},
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{
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"name": "support_count",
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"expression_name": "n_supports",
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"min": 3,
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"max": 12,
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"type": "integer",
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"units": "count",
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"description": "Number of support points"
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},
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{
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"name": "support_stiffness",
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"expression_name": "k_support",
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"min": 1000.0,
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"max": 50000.0,
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"units": "N/mm",
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"description": "Support spring stiffness"
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}
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],
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"objectives": [
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{
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"name": "filtered_rms_20deg",
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"description": "Filtered RMS WFE at 20 deg elevation (operational)",
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"direction": "minimize",
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"extractor": "zernike",
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"extractor_config": {
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"subcase": "20",
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"metric": "filtered_rms_nm",
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"displacement_unit": "mm",
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"n_modes": 50,
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"filter_orders": 4
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}
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},
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{
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"name": "mass",
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"description": "Total mirror assembly mass",
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"direction": "minimize",
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"extractor": "mass_from_expression",
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"extractor_config": {
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"expression_name": "total_mass"
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}
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}
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],
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"constraints": [
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{
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"name": "max_stress",
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"description": "Maximum von Mises stress in mirror",
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"type": "upper_bound",
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"threshold": 5.0,
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"units": "MPa",
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"extractor": "von_mises_stress",
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"extractor_config": {
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"subcase": "90"
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}
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},
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{
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"name": "astigmatism_limit",
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"description": "Astigmatism RMS at polishing orientation",
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"type": "upper_bound",
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"threshold": 50.0,
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"units": "nm",
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"extractor": "zernike",
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"extractor_config": {
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"subcase": "90",
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"metric": "astigmatism_rms_nm"
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}
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}
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],
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"optimization_settings": {
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"n_trials": 200,
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"sampler": "NSGA-II",
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"protocol": 11,
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"n_startup_trials": 30,
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"seed": 42
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},
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"simulation_settings": {
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"solver": "NX Nastran",
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"solution_name": null,
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"required_subcases": [20, 40, 60, 90],
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"op2_pattern": "*-solution_1.op2"
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},
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"zernike_settings": {
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"_description": "Global Zernike analysis settings",
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"n_modes": 50,
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"filter_low_orders": 4,
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"displacement_unit": "mm",
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"reference_subcase": "20",
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"polishing_subcase": "90",
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"operational_subcases": ["20", "40", "60"],
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"metrics_to_log": [
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"global_rms_nm",
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"filtered_rms_nm",
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"astigmatism_rms_nm",
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"coma_rms_nm",
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"trefoil_rms_nm",
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"spherical_nm"
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]
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},
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"output_settings": {
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"save_zernike_coefficients": true,
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"generate_html_reports": true,
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"export_exp_file": true
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}
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}
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