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Breshev EngineeringAURA Engineering Platform

Illustrative public sample · AURA-PS-J15-20K

What a gas-bearing feasibility package looks like.

This sample uses an existing public controlled case to show report structure. It is not a fictional customer project and it does not increase the evidence authority of the underlying case.

Public controlled dataPhysical screen · PASSRelease authority · SCREENING ONLY
Start a fit check

Executive decision

The operating point is separated from the first critical family, but the public evidence basis supports screening—not release.

The calculation provides a defensible direction for detailed engineering. It does not authorize manufacturing release, performance guarantee or final validation.

Current decisionPROCEED TO DETAILED ENGINEERINGDo not freeze the design on this evidence alone.

2 · Controlled basis

Input state carried with the result.

Journal radius15mm
Bearing length30mm
Radial clearance30µm
Supply pressure6bar
Operating speed20,000rpm
Feed architecture12 × 2orifices × rows
Restrictor diameter0.5mm
Case identifierAURA-PS-J15-20Kpublic controlled case

A customer package would also record coordinate basis, gas state, load basis, geometry revision, assumptions, supplied evidence and agreed exclusions.

3 · Bearing result

Calculated support coefficients at the stated operating point.

Kxx39.18 N/µm
Kxy+10.26 N/µm
Kyx−10.26 N/µm
Kyy39.18 N/µm

These coefficients are presented as state-dependent engineering outputs, not portable material properties. Their meaning depends on the attached geometry, clearance, pressure, coordinate convention and method basis.

4 · Rotor consequence

The selected support state is carried into the machine-level screen.

Operating speed20,000rpm
First critical family29,780rpm
Separation margin48.9%relative to operating speed
Physical screenPASSfor the controlled case

The value of the package is the connected chain: bearing state → rotor model → physical consequence → evidence-bounded decision.

5 · Decision boundary

What this result may and may not support.

Supported now

  • Use the case as a first-approximation design direction.
  • Proceed to detailed CAD/CAE and controlled geometry definition.
  • Identify the next validation evidence required.
  • Compare the operating point with the first critical family.

Not supported now

  • Final manufacturing release.
  • Universal performance guarantee.
  • Transfer of coefficients to a different operating state.
  • Replacement of detailed thermal, structural or experimental validation.

6 · Required next action

Convert the screening result into higher-authority engineering evidence.

  1. Freeze the detailed geometry and coordinate basis.
  2. Confirm thermal state, tolerances and gas-supply assumptions.
  3. Run detailed CAD/CAE/CFD where the uncertainty justifies it.
  4. Attach measurement or test evidence to the decision-critical claims.
  5. Re-run the connected bearing-and-rotor decision at the controlled release state.
Apply this structure to your caseReview public casesData handling and NDA

Illustrative sample generated from the public AURA-PS-J15-20K controlled case. Breshev Engineering · AURA Engineering Platform.