AURA Engineering PlatformThe decision is system-level precision, not bearing load alone
For a precision spindle, the bearing candidate is only one contributor to the final error budget. Rotor overhang, support spacing, tool interface, thermal growth, residual imbalance, structural flexibility, and the chosen operating-speed corridor all act on the same outcome. A stiffness value can be correct and still be insufficient if its clearance state, frequency basis, damping provenance, or connection to rotor response is unknown.
Evidence that must travel together
- Manufactured geometry and operating clearance
- Direct and cross-coupled K/C coefficients with provenance
- Rotor layout, support span, overhang, and mass properties
- Critical-speed, response, orbit, and stability screening
- Balance state, tolerance basis, and operating envelope
Questions the package must answer
- Is the proposed support architecture physically plausible?
- Does the intended RPM corridor retain adequate separation?
- Which uncertainty consumes the clearance or response margin?
- What remains screening evidence rather than release evidence?
- Which measurement closes the next decision gate?
What AURA produces
AURA does not replace the team's CAE stack, metrology, or prototype testing. It creates a reviewable requirement-to-decision layer that keeps the spindle architecture, coefficient evidence, dynamic screen, validation provenance, and release boundary in the same case record.
1. Requirement basis Speed corridor, load path, precision target, envelope, and failure consequence.
2. Support synthesis Journal, thrust, conical, or combined topology placed inside the real spindle layout.
3. Coefficient ledger Load, flow, stiffness, damping, and cross-coupling preserved with method and evidence status.
4. Rotor response Campbell, separation, Bode, orbit, stability, and clearance-facing screening from the same support state.
5. Decision boundary PASS / REVIEW / SCREENING ONLY with the missing evidence and next test stated explicitly.
Claim boundary: AURA supports scoped engineering screening and decision packages. It does not make a universal production-validation claim without case-specific evidence.