Antoine
80104d2467
Root cause: Path.absolute() on Windows does NOT resolve '..' components. sim_file_path was reaching NX as '...\studies\01_doe_landscape\..\..\models\Beam_sim1.sim' NX likely can't resolve referenced parts from a path with '..' in it. Fixes: - nx_interface.py: glob from self.model_dir (resolved) not model_dir (raw) - solver.py: sim_file.resolve() instead of sim_file.absolute() - solve_simulation.py: os.path.abspath(sim_file_path) at entry point - Diagnostic logging still in place for next run
Hydrotech Beam — Structural Optimization
Client: Hydrotech (internal test fixture) Channel: #project-hydrotech-beam Created: 2026-02-08 Status: Technical Breakdown Complete — Awaiting Gap Resolution
Objective
Optimize a sandwich I-beam with lightening holes: minimize mass while meeting stiffness and strength constraints.
Key Numbers
| Metric | Baseline | Target |
|---|---|---|
| Mass | ~974 kg | Minimize |
| Tip displacement | ~22 mm | ≤ 10 mm |
| Von Mises stress | TBD | ≤ 130 MPa |
Design Variables
| Variable | Range | Type |
|---|---|---|
| Half-core thickness | 10–40 mm | Continuous |
| Face thickness | 10–40 mm | Continuous |
| Hole diameter | 150–450 mm | Continuous |
| Hole count | 5–15 | Integer |
Approach
Two-phase optimization:
- DoE (LHS, 40–50 trials) — map the landscape
- TPE (Bayesian, 60–100 trials) — converge to optimum
Total budget: ~100–150 NX evaluations, est. 2–5 hours compute.
Project Structure
hydrotech-beam/
├── README.md ← You are here
├── CONTEXT.md # Intake requirements
├── BREAKDOWN.md # Technical analysis
├── DECISIONS.md # Decision log
├── models/ # Reference NX models (golden copies)
├── kb/ # Living knowledge base
│ ├── components/ # Per-component knowledge
│ ├── materials/ # Material data
│ ├── fea/ # FEA model knowledge
│ └── dev/ # Generation documents
├── images/ # Screenshots, plots, renders
├── studies/ # Optimization campaigns
│ └── 01_doe_landscape/ # (first study — pending)
└── deliverables/ # Final reports and recommendations
Key Documents
- CONTEXT.md — Full intake data
- BREAKDOWN.md — Tech Lead's technical analysis
- DECISIONS.md — All project decisions
- kb/_index.md — Knowledge base overview
Team
| Role | Agent | Status |
|---|---|---|
| Manager | 🎯 Manager | Coordinating |
| Technical Lead | 🔧 Tech Lead | Breakdown complete |
| CEO | Antoine | Gap resolution pending |