Thrust-collar air bearing, orifice/slot — fixed reference geometry (B)
Reference-geometry calculator (Ø40mm outer diameter, 5µm film, β=0.6 — fixed) for a thrust-collar aerostatic bearing fed through a slot of nr discrete orifices, with an inner vacuum/exhaust zone and a supply choked-flow check.
Draagvermogen, F200.61 N
Stijfheid, S65.9 N/µm
Totale massastroom, ṁ12.449 mg/s
Stroomverhouding buiten-/binnenzone, ṁ₁/ṁ₂4.614
Volumestroom, Q0.628 l/min
Diameter per opening, d0.121 µm
Voedingssleufoppervlak / kritische-stromingsoppervlak, A₃/A₃c1.07
Kamerdrukverhouding, pᵣ/pₛ0.681
The legacy "please login" demo lock froze D0/H0/B1. This port keeps the original fixed geometry and formula exactly, exposing only the slot/orifice-feed, secondary-film and pressure inputs that were already free to vary.
Methode & referenties
- Thrust-collar aerostatic bearing fed through a slot of discrete orifices, with an inner vacuum/exhaust zone.
- FIXED GEOMETRY: outer diameter 40 mm, film 5 µm, β=0.6 — same rationale as the other c12_4*/c12_5* fixed-geometry modules.
- Generalizing the outer radius is a real model change and is not done here — see docs/locked-calculators-review.md.
De berekening is een letterlijke overzetting van de originele client-side JavaScript van /calculators/c12_5b.htm. Resultaten zijn geverifieerd gelijk aan het origineel via een geautomatiseerde golden-master-test. Geen enkele formule is opnieuw afgeleid of “verbeterd”.