Files
Atomizer/examples/bracket/bracket_sim1-solution_1.diag

72 lines
1.2 KiB
Plaintext
Raw Normal View History

feat: Add complete Bracket example with validated OP2 extraction Added complete working example with all NX result files for testing and validation of the OP2 result extractor. Files Added (examples/bracket/): - Bracket.prt: Part geometry with expressions - Bracket_sim1.sim: Simulation definition (SOL 101 Linear Statics) - Bracket_fem1.fem: Finite element mesh - bracket_sim1-solution_1.op2: Binary results (666 KB) - bracket_sim1-solution_1.f06: ASCII results log - bracket_sim1-solution_1.dat: Nastran input deck - Supporting files: .diag, .f04, .log, .html, .png Validated Results from OP2: ✓ Max Displacement: 0.362 mm (node 91) - Primary direction: -Z (-0.354 mm) - Load application point ✓ Max von Mises Stress: 122.91 MPa (element 79, CHEXA) - Material: Aluminum 6061-T6 (yield = 276 MPa) - Safety Factor: 2.25 ✅ SAFE - Well below yield strength Units Handling: - NX units: mm, mN (milli-newton), kg - Stress in OP2: mN/mm² = kPa - Conversion required: kPa / 1000 = MPa - Displacement: mm (direct) Model Properties: - Analysis Type: SOL 101 Linear Statics - Elements: 585 (CHEXA hexahedral) - Load: ~1000 N in -Z direction (3 application points) - Constraints: Fixed supports at base - Material: Al 6061-T6 Optimization Potential: Current design has good margins: - Displacement: 0.36 mm (could allow up to ~1.0 mm) - Stress: 122.91 MPa (could allow up to ~200 MPa) → Weight reduction opportunity while maintaining safety! This validates: - pyNastran OP2 extraction works correctly - Units conversion handling (mN → N, kPa → MPa) - Multi-objective optimization is feasible - Example ready for testing optimization workflow
2025-11-15 14:52:15 +00:00
*** 08:33:00 ***
Starting Nastran Exporter
*** 08:33:00 ***
Writing file
C:\Users\antoi\Documents\Atomaste\Atomizer\tests\bracket_sim1-solution_1.dat
*** 08:33:00 ***
Writing SIMCENTER NASTRAN 2412.0 compatible deck
*** 08:33:00 ***
Writing Nastran System section
*** 08:33:00 ***
Writing File Management section
*** 08:33:00 ***
Writing Executive Control section
*** 08:33:00 ***
Writing Case Control section
*** 08:33:00 ***
Writing Bulk Data section
*** 08:33:00 ***
Writing Nodes
*** 08:33:00 ***
Writing Elements
*** 08:33:00 ***
Writing Physical Properties
*** 08:33:00 ***
Writing Materials
*** 08:33:00 ***
Writing Degree-of-Freedom Sets
*** 08:33:00 ***
Writing Loads and Constraints
*** 08:33:00 ***
Writing Coordinate Systems
*** 08:33:00 ***
Validating Solution Setup
*** 08:33:00 ***
Summary of Bulk Data cards written
+----------+----------+
| NAME | NUMBER |
+----------+----------+
| CHEXA | 306 |
| CPENTA | 10 |
| FORCE | 3 |
| GRID | 585 |
| MAT1 | 1 |
| MATT1 | 1 |
| PARAM | 6 |
| PSOLID | 1 |
| SPC | 51 |
| TABLEM1 | 3 |
+----------+----------+
*** 08:33:00 ***
Nastran Deck Successfully Written