The TAMU Technology Commercialization Office and the Turbomachinery
Laboratory license the computational programs developed by the Tribology Group
members. The programs predict the static and dynamic force performance for the following
fluid film bearings and seal types:
GAS BEARINGS/FACE SEALS
Gas Foil bearings for oil-free
rotating machinery applications (funded by NSF,
TRC and NASA GRC)
2012 _ Update for metal mesh
foil bearings (available May 2012)
2DTiltpad_HGB© hydrodynamic/hydrostatic
rigid and tilting pad gas bearings ($3,500
executable + GUI)
Spiral©, Spiralc© flat & spirally grooved (non contacting) face seals, ideal
(buffer) gases ($5,000 executable + GUI)
LIQUID/GAS BEARINGS & ANNULAR SEALS
HydroJET© hydrostatic/hydrodynamic
radial bearings and annular seals, +
tilting and flexure pivot journal bearings, foil bearings, + angled injection
hydrostatic bearings
Hydrothrust© hydrostatic/hydrodynamic
thrust bearings
Hydrotran© + transient analysis for blade loss and g-load simulations
(radial bearings) (Contact Lsanandres@tamu.edu
for pricing)
Hseal2p© two-phase
flow cryogenic fluid annular seals ($ 8,000)
HsealH© gas
& liquid annular seals, including textured seals: honeycomb seals, hole-pattern
seals, etc. ($3,500
executable + GUI)
HsealMIX© (2011) gas/liquid mixture annular seals, including
textured seals: honeycomb seals, hole-pattern seals, etc.
Dseal© gas
labyrinth and gas pocket damper seals – multiple cavities
The physical models include full fluid inertia, turbulence flow and
thermo hydrodynamic models for high-speed, high-pressure, hot/cold process
fluids. The computational programs have been validated with extensive
experimental measurements performed at TAMU and elsewhere. The Fortran F90
executable codes are extremely fast and user friendly.
Since 1990 Dr. Luis San Andrés has developed a number of
computational programs for the Turbomachinery Research Consortium (TRC). The
programs are integrated into the XLtrc2© rotordynamics
analysis suite of programs developed exclusively for TRC members. XLtrc2©
performs complete rotordynamic analysis (stability and imbalance response) of
rotors supported in fluid film bearing elements, seals, ball bearings, etc. Dr.
San Andrés codes predict the steady state rotor eccentricity and rotordynamic
force coefficients as a function of the operating conditions (rotational speed
and load) for the following types of bearing and seal configurations:
XLlanseal© annular pressure
seals (laminar and turbulent flow, variable fluid properties),
XLhydpad© laminar flow
hydrostatic/hydrodynamic radial bearings of arbitrary geometry,
XLlsfd© laminar
flow squeeze film dampers with end seals, circular centered orbits,
XLlubgt© floating
ring multiple-groove seals (laminar flow and thermal effects),
XLosfd© laminar
flow open end squeeze film dampers, arbitrary static eccentricity,
XLpresdm© laminar flow
pressure dam and multiple-lobe journal bearings,
XLsfdfem© laminar flow
open/sealed squeeze film dampers with fluid inertia effects,
XLtfpbrg© tilting pad
journal bearings and fixed arc bearings, laminar and turbulent flows, includes
a number of thermal models.
JBfish© herringbone
grooved journal bearings and spirally grooved seals (laminar flow).
List of Hydrocodes
users from government, industry and academia:
|
Hydrosealt |
date |
|
NASA Lewis RC |
02/94 |
|
NASA Marshall
SFC |
04/94 |
|
NASA Marshall
SFC |
04/94 |
|
Edwards Air
Force Base |
09/94 |
|
Pratt &
Whitney |
09/94 |
|
Rockwell, Inc. |
09/94 |
|
Hydroflext,
Hydrotran |
|
|
NASA Lewis RC |
01/95 |
|
Edwards Air
Force Base |
02/95 |
|
NASA Marshall
SFC |
03/95 |
|
Pratt &
Whitney |
04/95 |
|
Rockwell, Inc. |
06/95 |
|
|
11/96 |
|
MIT |
11/95 |
|
|
10/97 |
|
SNECMA, France |
04/98 |
|
Hydrojet |
|
|
NASA Lewis RC |
01/96 |
|
NASA Marshall
SFC |
03/96 |
|
Rockwell |
08/96 |
|
Pratt &
Whitney |
10/96 |
|
SNECMA, France |
04/98 |
|
Argo-Tech
Corporation Grundfos Tech |
08/98 12/99 |
|
Concepts ETI |
05/00 |
|
Advanced
Turbomachinery Solutions |
08/00 |
|
Exxon-Mobil
R&D |
09/01 |
|
Hseal2p |
|
|
NASA Lewis RC |
01/97 |
|
Boeing |
04/99 |
|
SNECMA, France |
03/06 |
Hydrothrust
|
|
|
NASA Marshall
SFC Edwards Air
Force Base Pratt &
Whitney Argo-Tech
Corporation SNECMA, France |
10/98 10/98 10/98 09/99 12/99 |
|
|
|
|
XLHydrojet |
|
|
NASA Marshall
SFC |
12/02 |
|
Exxon – Mobil RC |
02/03 |
|
Boeing _
Rocketdyne |
06/03 |
|
Qualiseal |
06/03 |
|
Ødegaard & Danneskiold-Samsøe A/S |
03/03 |
|
Massachusetts Institute of Technology |
05/03 |
|
Dynatech Engineering – USAF SBIR Phase I |
11/03 |
|
Barber Nichols |
12/03 |
|
|
|
|
XLHydrothrust |
|
|
Barber Nichols |
01/05 |
|
|
12/05 |
|
Honweywell |
10/05 |
2DTiltpad_HGB© hydrodynamic/hydrostatic
rigid and tilting pad gas bearings
|
2DTiltPad_HJB |
|
|
Barber Nichols |
06/06 |
|
GE RC |
06/06 |
|
Southwest Research Institute |
06/05 |
|
Dresser Rand Co. |
06/05 |
|
|
06/05 |
Last update – March 2012