Software (links highlighted)

 

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

Cleveland State University

11/96

MIT

11/95

Hamilton Standard

10/97

SNECMA, France

04/98

Hydrojet

 

NASA Lewis RC

01/96

NASA Marshall SFC

03/96
05/97

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
NASA Marshall SFC

01/97
06/97

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

Snecma, France

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

University of Florida

06/05

 

Last update – March 2012