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Breshev EngineeringAURA Engineering Platform

Adjustable conical support architecture

One spindle architecture. Multiple controlled support states.

AURA evaluates whether controlled changes in clearance, supply state and support configuration can move stiffness, load capacity and rotor behaviour across several machine duty points.

Rotating section view of an adjustable conical gas bearing
Variable support stateClearance, supply and configuration.
Tunable performanceStiffness, capacity and flow.
Rotor consequenceNatural frequencies and separation.
Model-range questionCan fixed variants be consolidated?

The commercial question

Can one controlled architecture cover operating zones that currently require several fixed variants?

AURA treats that as an engineering envelope problem. Each duty point is tested against capacity, stiffness, flow, clearance, rotor response and the machine constraints.

DUTY POINT A

Precision state

Lower load, controlled clearance and high positioning sensitivity.

  • Target stiffness
  • Flow and thermal state
  • Rotor separation
DUTY POINT B

Balanced production state

Combined radial and axial duty with defined speed and process load.

  • Capacity margin
  • Stiffness matrix
  • Critical-speed consequence
DUTY POINT C

Higher-load state

Adjusted support state for a more demanding machine operating point.

  • Minimum clearance
  • Supply requirement
  • Dynamic margin

What AURA changes and evaluates

Adjustment creates value when the complete machine envelope closes.

CONTROL VARIABLES

What may change

  • Support clearance
  • Supply pressure or controlled supply state
  • Conical support geometry
  • Restrictor and feed configuration
  • Support pairing and machine layout
BEARING RESULTS

What is recalculated

  • Radial and axial capacity
  • Stiffness matrix
  • Damping state
  • Air or gas consumption
  • Minimum clearance and margin
MACHINE RESULTS

What the rotor must still satisfy

  • Natural frequencies
  • Critical-speed separation
  • Unbalance response
  • Operating envelope
  • Next CAD, CFD or test question

Decision logic

AURA tests whether one adjustable spindle can cover the required duty points while preserving the full machine envelope.

01

Define duty points

Loads, RPM, accuracy, envelope and supply constraints.

02

Synthesise support states

Generate candidate states for each operating zone.

03

Carry each state into the rotor

Inspect critical speeds, response and margin.

04

Decide the product architecture

One adjustable spindle, several fixed variants or a mixed range.

Physical and research basis

The concept is connected to manufactured hardware and a documented research programme.

Manufactured adjustable-conical aerostatic spindle

Manufactured architecture

A physical adjustable-conical spindle track anchors the architecture in hardware.

See hardware demo →
Original industrial conical spindle drawing

Industrial origin

The conical support method grew from an operating direct-drive machine and original drawings.

Open ALMAZ case →
AURA product interface for gas-bearing synthesis

Productisation in AURA

Direct analysis, inverse synthesis and rotor handoff convert the concept into a controlled engineering workflow.

Inspect AURA →

Define the duty points and test whether one architecture can cover them.

Start with the required loads, RPM, envelope and operating states.

Request a feasibility screen