Anto01
a4805947d1
Includes all study folders with NX models for development: - bracket_stiffness_optimization (V1, V2, V3) - drone_gimbal_arm_optimization - simple_beam_optimization - uav_arm_optimization (V1, V2) - training_data_export_test - uav_arm_atomizerfield_test Contains .prt, .fem, .sim files and optimization databases. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
116 lines
3.7 KiB
Python
116 lines
3.7 KiB
Python
"""
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Diagnostic script to inspect OP2 file contents
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Helps identify what data is available and what's missing
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"""
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import sys
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from pathlib import Path
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# Add project root to path
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project_root = Path(__file__).resolve().parents[2]
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sys.path.insert(0, str(project_root))
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from pyNastran.op2.op2 import read_op2
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# Path to OP2 file
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op2_file = Path(__file__).parent / "1_setup" / "model" / "bracket_sim1-solution_1.op2"
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if not op2_file.exists():
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print(f"[ERROR] OP2 file not found: {op2_file}")
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sys.exit(1)
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print("="*70)
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print("OP2 FILE DIAGNOSTIC")
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print("="*70)
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print(f"File: {op2_file}")
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print(f"Size: {op2_file.stat().st_size:,} bytes")
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print()
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# Load OP2 file
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print("[1/3] Loading OP2 file...")
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op2 = read_op2(str(op2_file), debug=False)
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print(" [OK] OP2 file loaded successfully")
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print()
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# Check for Grid Point Weight (Mass Properties)
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print("[2/3] Checking for Grid Point Weight (GRDPNT)...")
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if hasattr(op2, 'grid_point_weight'):
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if op2.grid_point_weight:
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gpw = op2.grid_point_weight
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print(" [OK] Grid Point Weight data found!")
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print()
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print(" Available attributes:")
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for attr in dir(gpw):
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if not attr.startswith('_'):
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print(f" - {attr}")
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print()
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# Check for MO matrix
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if hasattr(gpw, 'MO'):
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print(f" [OK] MO matrix found: {gpw.MO}")
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if gpw.MO is not None and len(gpw.MO) > 0:
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mass_ton = gpw.MO[0, 0]
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mass_kg = mass_ton * 1000.0
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print(f" [OK] Mass: {mass_kg:.6f} kg ({mass_ton:.6e} ton)")
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else:
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print(" [X] MO matrix is empty or None")
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else:
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print(" [X] MO matrix not found")
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# Check for CG
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if hasattr(gpw, 'cg'):
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print(f" [OK] CG found: {gpw.cg}")
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else:
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print(" [!] CG not found")
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# Check reference point
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if hasattr(gpw, 'reference_point'):
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print(f" [OK] Reference point: {gpw.reference_point}")
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else:
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print(" [!] Reference point not found")
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else:
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print(" [X] grid_point_weight attribute exists but is empty/None")
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else:
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print(" [X] No grid_point_weight attribute found")
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print()
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print(" GRDPNT output request is NOT enabled in Nastran")
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print(" Solution:")
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print(" 1. Open Bracket_fem1.fem in NX")
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print(" 2. Enable GRDPNT in Case Control or Bulk Data")
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print(" 3. Save the FEM file")
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print(" 4. Re-run the optimization")
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print()
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# Check for Grid Point Forces
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print("[3/3] Checking for Grid Point Forces (GPFORCE)...")
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if hasattr(op2, 'grid_point_forces'):
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if op2.grid_point_forces:
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print(" [OK] Grid Point Forces data found!")
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print(f" Subcases available: {list(op2.grid_point_forces.keys())}")
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else:
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print(" [X] grid_point_forces attribute exists but is empty")
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else:
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print(" [X] No grid_point_forces found (expected - using applied_force parameter)")
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print()
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print("="*70)
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print("DIAGNOSIS COMPLETE")
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print("="*70)
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# Summary
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print()
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print("SUMMARY:")
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has_mass = hasattr(op2, 'grid_point_weight') and op2.grid_point_weight
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if has_mass:
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print("[OK] Mass extraction should work")
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else:
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print("[X] Mass extraction will FAIL - GRDPNT not enabled")
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print()
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print("NEXT STEPS:")
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print("1. In NX, open: studies/bracket_stiffness_optimization/1_setup/model/Bracket_fem1.fem")
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print("2. Go to: File > Utilities > Customer Defaults")
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print("3. Search for: GRDPNT")
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print("4. OR: Add 'PARAM,GRDPNT,0' to Bulk Data section")
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print("5. Save and close")
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print("6. Re-run optimization")
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