TOWER-CORE Documentation

📖 Overview

"Structural integrity in a vertical tower is not a property frozen at commissioning — it is a continuously evolving state requiring continuous quantitative assessment."

TOWER-CORE is a fully coupled, AI-augmented continuum mechanics framework that treats tower structural safety as a continuously governed dynamic invariant — not a static design property frozen at the completion of a finite element run.

A vertical tower operating under sustained wind loading is not in static equilibrium. It is a dynamically evolving system accumulating fatigue damage, experiencing natural frequency drift, and approaching or receding from its overturning stability limit in real time. TOWER-CORE quantifies these changes continuously and governs the safety margin accordingly.

🏗️ 3-Module + 3 AI Architecture

Module 01 — DFMM (Dynamic Frequency Monitoring Module)

SSI-COV ambient modal identification at ±0.1% frequency resolution. Tracks natural frequency shift NFS_i(t) and resonance safety margin RSM_i(t) in real time from accelerometer data.

f_n(P) = f₀·√(1 - P/P_cr)
SSI-COV: Y = [y|ŷ] · SVD · modal extraction

Module 02 — SJFAM (Structural Joint Fatigue Assessment Module)

ASTM E1049-85 rainflow cycle counting. Palmgren-Miner linear damage accumulation with Goodman mean stress correction. Eurocode FAT class S-N curves (FAT90, FAT100, FAT125).

D_fatigue(t) = Σ n_i/N_i(Δσ_i)
σ_a,eq = σ_a / (1 - σ_m/σ_UTS)

Module 03 — GSOAM (Global Stability & Overturning Module)

Davenport gust response factor for dynamic wind loading. P-delta geometric nonlinearity correction. Guyed mast tension and restoring force analysis.

F_stability = M_restoring / (M_wind + M_oper)
θ_stab = P·δ / (EI/h²) ≤ 0.10

Degradation — S_deg (Stiffness Degradation Index)

Continuum damage mechanics model (Chaboche). ISO 9224 corrosion rate prediction. Remaining life estimation from modal frequency reduction.

S_deg = 1 - K_damaged/K_intact
T_rem = (A_rem - A_crit) / (dA/dt)

TSII — Tower Structural Integrity Index

Weighted composite of stiffness degradation, overturning stability, and fatigue damage. Continuous real-time safety certification with 24-48h forecast.

TSII = 0.40·(1-S_deg) + 0.35·(F_stab/1.50) + 0.25·(1-D_fatigue) ≥ 0.90

Sensor Fusion — Kalman Filter State Estimation

Multi-sensor fusion: accelerometers, strain gauges, tiltmeters, anemometers. Outlier rejection and missing data interpolation.

x̂(t|t) = x̂(t|t-1) + K(t)[z(t) - H·x̂(t|t-1)]
K(t) = P(t|t-1)·Hᵀ·[H·P·Hᵀ + R]⁻¹

📐 Core Equations

⚙️ TSII Governance Protocol

📦 Installation

pip install tower-core-engine

# From source
git clone https://github.com/gitdeeper12/TOWER-CORE.git
cd TOWER-CORE
pip install -e .

# Quick test
python -c "from tower_core import TowerCoreAssessor; print('TOWER-CORE ready')"

🔧 API Reference

from tower_core import TowerCoreAssessor

# Initialize with tower configuration
assessor = TowerCoreAssessor(
    tower_config="configs/lattice_120m.yaml",
    sensor_stream="live"
)

# Run full TOWER-CORE pipeline
result = assessor.evaluate()

print(result.signal)              # "STEADY_STATE" | "MONITORING_PHASE_1" | "MITIGATION_PHASE_2" | "CRITICAL_BREACH"
print(result.tsii)                # Tower Structural Integrity Index [0, 1]
print(result.nfs)                 # Natural Frequency Shift (%)
print(result.fatigue_damage_max)  # Palmgren-Miner damage
print(result.f_stability)         # Overturning stability factor
print(result.governance_level)    # "none" | "level_1" | "level_2" | "stop"

TowerCoreAssessor Parameters

📊 Validation Summary

👤 Author

📝 Citation

"Structural integrity in a vertical tower is not a property frozen at commissioning — it is a continuously evolving state requiring continuous quantitative assessment." — TOWER-CORE v1.0.0