AURA Preview · Release Evidence
Gate 4 — Balance and assembly evidence
The calculated residual ratio is favourable. The release decision remains REVIEW because plane mapping, process capability, repeatability, and assembly transfer are not yet demonstrated.
DECISION AUTHORITY
REVIEW
Useful evidence; release gaps remain open
Nominal ratio
0.72
Plane basis
OPEN
Capability
OPEN
Repeatability
OPEN
Final authority
REVIEW
Evidence objects
Tolerance and plane mappingUNVERIFIED
T-A
CM
T-B
C-1
correction → tolerance transformation missing
C-2
Permissible total
0.050 g·mm (nominal, before allocation)
Allocation rule
Not supplied
Plane coordinates
Correction planes known; tolerance planes not defined
Machine and process capabilityUNVERIFIED
Machine ID
BM-SS-04 · soft suspension
Calibration
Current
Minimum achievable residual
Not demonstrated for this configuration
Reduction ratio
Not attached
Angle/correction capability
Not attached
Rotor-state repeatabilityUNVERIFIED
Repeated runs
1 recorded final indication
Starts / settling
No vector series
Thermal states
Not covered
Reassembly spread
Not covered
Evidence floor
Cannot yet be compared with the requested tolerance
Assembly transfer and modal pathASSUMED
Balanced state
Rotor without final tool adapter
Assembly fingerprint
Partial
Before/after vector separation
Not performed in future planes
Modal basis
Early model predates adapter revisions
Speed path
Steady 65,000 rpm only; transients not closed
Decision findings
| Evidence item | Status | Release consequence | Next action |
|---|---|---|---|
| Nominal residual ratio | SUPPORTED | Arithmetic is favourable in the reported reference | Preserve as summary, not final authority |
| Tolerance-plane mapping | UNVERIFIED | Residual and limit are not yet plane-resolved | Define coordinates, allocation, and transformation |
| Machine/process capability | UNVERIFIED | G0.4 demonstrability is open | Attach task-specific capability evidence and guard band |
| Vector repeatability | UNVERIFIED | Physical evidence floor is unknown | Repeat starts/states and report mean vector plus spread |
| Assembly/modal transfer | ASSUMED | Component result cannot silently authorize the final assembly | Verify final adapter state and refresh modal/speed-path evidence |
Claim boundary: current evidence supports the recorded machine indication for the disassembled rotor and the unloaded factory vibration state. It does not yet prove correctly allocated tolerance-plane compliance, task-specific process capability, final-assembly balance, or acceptable modal sensitivity over the complete speed path.
Representative case only. This preview exposes workflow and evidence logic, not the proprietary solver core and not a production-release claim. The balancing evidence object shown here is a specified product direction pending implementation in the live AURA platform.