Atomizer/projects/hydrotech-beam/kb/_history.md

Knowledge Base History — Hydrotech Beam

All modifications tracked by generation.

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Gen 002 — 2026-02-10 — KBS Session Processing

Source: 3 KBS capture sessions recorded by Antoine (20260210-132817, 20260210-161401, 20260210-163801) Author: Technical Lead 🔧 Protocol: OP_09 → OP_10 Step 2

Updated:

• components/sandwich-beam.md — confirmed geometry, all expression names, mass corrected to 11.33 kg (p1)
• materials/steel-aisi.md — confirmed AISI 1005, density 7.3 g/cm³, future material expansion noted
• fea/models/sol101-static.md — confirmed CQUAD4, 33.7 mm mesh, cantilever BCs, 10,000 kgf load
• _index.md — generation 002, gap tracker updated (3 closed, 2 partial, 6 new)

Created:

• dev/gen-002.md — full generation document with KBS transcript analysis and mass discrepancy resolution

Key findings:

• Mass corrected: 974 kg → 11.33 kg (expression p1, not p173)
• Cantilever confirmed: Left side fixed, right side loaded (10,000 kgf downward)
• Beam length confirmed: 5,000 mm
• Mesh confirmed: CQUAD4 thin shell, 33.7 mm elements
• Material confirmed: AISI Steel 1005, density 7.3 g/cm³
• 3 gaps closed (G1, G2, G8), 6 new gaps identified (G10–G15)
• Antoine's directive: "Please optimize" — considers model ready

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Gen 001 — 2026-02-09 — Initial KB

Source: Project intake (CONTEXT.md) + Technical Lead breakdown (BREAKDOWN.md) Author: Manager 🎯

Created:

• components/sandwich-beam.md — initial component file from intake data
• materials/steel-aisi.md — material placeholder
• fea/models/sol101-static.md — FEA model placeholder from breakdown
• dev/gen-001.md — generation document

Key findings from breakdown:

• Baseline FAILS displacement constraint (22 mm vs 10 mm limit)
• Feasible region may be narrow — stiffness and mass compete
• Sandwich effect (core thickness) is the primary stiffness lever
• 9 gaps identified requiring CEO input before proceeding