Civilian Structural Integrity Stack: passive shock/vibration peak-load reduction + structural health monitoring (SHM) skin + audited power/logging spine — designed to be falsifiable, reproducible, and reviewable by aerospace structures/test engineers.
Scope (non-negotiable): This repo is not propulsion, reactionless thrust, anti-gravity, or “stealth.”
It is civilian structural integrity + instrumentation engineering: thermal hygiene, EMI/EMC discipline, vibration/shock mitigation, sensing, and evidence.
IX-AeroIntegrity is an evaluation package for a combined concept that aims to answer a very practical aerospace question:
Can we reduce peak shock/vibe transmission in a structure and continuously verify structural health—without adding fragile complexity—while producing audit-grade evidence?
This repo combines three grounded pillars into one testable stack:
-
Passive Peak-Load Reduction Layer (PressureX-derived concept)
A passive structural layer approach intended to broaden impulses and reduce peak transmitted loads (shock/pyroshock and high-frequency content) without active control. -
SHM “Skin” + Diagnostics (AHIS-derived concept)
A distributed sensing layer (e.g., PVDF/piezo film arrays or equivalent) intended to detect change, localize anomalies, and enable repeatable diagnostic sweeps (FRF/impedance / response signatures). -
Audited Power + Logging Spine (Legacy/ZeroCell-derived discipline)
A measurement-honest instrumentation backbone: buffered power, strict input/output accounting, fault/thermal interlocks, and traceable logs so results can be replicated or falsified.
Key idea: If you cannot measure it cleanly, it doesn’t count. This repo is built to survive hostile review.
- Not a flight-qualified product.
- Not a claim of guaranteed performance without tests.
- Not a “trust me” proposal.
- Not stealth / low-observable design guidance.
- Not weapon-related, and no military evasion intent.
This is a test-first engineering package meant to be proven or killed quickly.
Aerospace teams routinely fight the same pain points:
- Pyroshock / shock / random vibe drive overdesign and qualification headaches.
- Structures pass vibe/shock yet still develop bondline issues, delams, fastener loosening, or fatigue hot spots.
- Post-event decisions (“is it safe to continue?”) often rely on limited instrumentation or slow teardown.
- Wiring and power distribution for dense sensor networks add mass, complexity, and failure modes.
If IX-AeroIntegrity works to any meaningful degree, it could enable:
- Lower peak transmitted loads (structural margin relief, potential mass reductions in secondary structure)
- Faster post-event health checks (less downtime, fewer unnecessary tear-downs)
- Higher confidence in structural state over lifecycle (data-backed maintenance)
But again: it must be demonstrated with clean evidence. This repo is engineered around that reality.
This project is evaluated by measurable outputs, not narratives:
- Reduction in peak acceleration/strain transmitted across the layer under controlled shock input
- Change in frequency-domain energy (transfer function) without creating unacceptable resonant amplification
- Survivability / stability under thermal cycling and repeated load events
- Detection latency and localization error for seeded anomalies (bond defect, delam simulant, crack starter)
- Drift under thermal/vacuum-like environments and time
- Repeatability of diagnostic signatures (SNR, false positive/negative rates)
- Auditable input/output power accounting with calibrated sensors
- Safe fault behavior: overcurrent, thermal derate, dump path behavior
- Deterministic logging with traceable metadata (calibration IDs, sampling rate, timestamps)
If any one of these pillars fails, the combined concept fails. (This is intentional.)
Physical stack:
- Base structure / panel
- Passive mitigation layer
- Sensor skin layer (distributed)
- Instrumentation node (power + logging + diagnostics drive)
Functional blocks (civilian): [Energy In (wired / harvested)] -> [Protection + Precharge + Buffer (supercap)] -> [Regulated rails] -> [DAQ + Logger] -> [Diagnostic Excitation Driver] [Sensor Skin (PVDF/piezo/etc)] -> [Analog front end] -> [ADC] -> [Health Metrics] [Temp/IMU/Accel refs] --------> [Time sync + calibration metadata] -> [Evidence logs]
This repo is structured as an evaluation kit:
- /specs/: requirements, constraints, non-claims, interfaces
- /test/: test plans, calibration procedures, pass/fail metrics
- /bom/: candidate parts + safety notes (bench-grade, off-the-shelf)
- /analysis/: scripts/notebooks to reproduce plots and metrics
- /data/: example datasets (raw + processed) with provenance
- /safety/: interlocks, thermal limits, EMI/EMC practices (civil)
If you only have 15 minutes: read /specs/CLAIMS_AND_NONCLAIMS.md and /test/TEST_PLAN.md first.
(Those files will exist as the repo is built out commit-by-commit.)
If you work in structures, dynamics, shock/pyroshock, vib, NDT/SHM, test engineering, or instrumentation:
- Tell me the fastest falsification test you’d run.
- Tell me the single metric you’d use as pass/fail.
- If you have a preferred standard (NASA-STD, ECSS, MIL-STD, internal spec), point to the relevant section.
My goal here is not hype. It’s a clean evaluation package that serious reviewers can improve or kill.
This repository is released under the IX-AeroIntegrity Evaluation License (Non-Commercial) (see LICENSE):
- You may test/evaluate internally
- You may build prototypes for evaluation
- You may not commercialize, sell, or publicly redistribute without a separate written agreement
Current status: repo being assembled as a structured evaluation kit.
Each commit is intended to be reviewable and stand on its own.
If you want to:
- run a formal evaluation,
- sponsor a test campaign,
- license commercially,
- or discuss handoff + consulting,
open an issue marked “Commercial/Collab” (coming), or contact the Licensor listed in LICENSE.