2015 Tribology Group Presentations

Luis San Andrés & students

 

 

ASME Turbo-EXPO COnference – MONTREAL, June 17-, 2015

 

GT2015- 43096

Forced Coefficients for a Short Length, Open-Ends Squeeze Film Damper with End Grooves: Experiments and Predictions
Sung-hwa Jeung and Luis San Andrés

GT2015- 42556

Failure of a Test Rig with Pressurized Gas Bearings: A Lesson on Humility
Michael Rohmer and Luis San Andrés

GT2015- 42776

On the Effect of Pad Flexibility on the Forced Performance of Tilting Pad Journal Bearings: A Guide to Benchmarking a Predictive Model
Yingkun Li and Luis San Andrés

GT2015- 43734

Structural and Rotordynamic Force Coefficients of a Shimmed Bump Foil Bearing: an Assessment of a Simple Engineering Practice
Joshua Norsworthy and Luis San Andrés

GT2015- 43487

Orbit-Model Force Coefficients for Fluid Film Bearings: A Step Beyond Linearization

Sung-hwa Jeung and Luis San Andrés

 

 

 

STLE ANNUAL MEETING – Dallas, May 18-21, 2015

 

1

Experimental Assessment of Drag and Rotordynamic Response for a Porous Type Gas Bearing

Sung-hwa Jeung, Michael Rohmer, Luis San Andrés & Drew Devitt

2

Response of an Open Ends Squeeze Film Damper to Large Amplitude Impact Loads

Sung-hwa Jeung and Luis San Andrés

3

Measurements Of Leakage and Force Coefficients in a Short Length Annular Seal Operating with a Gas in Oil Mixture

Qing Liu, Xueliang Lu, and Luis San Andrés

 

Turbomachinery Research Consortium May 27-29, 2015

 

News

Update on the Asia Turbomachinery Symposium

 

 

0

Computational Model for Tilting Pad Journal Bearings

Progress Presentation

A Computational Model for Tilting Pad Journal Bearings with Pad Flexibility

 

 

1

Linear-Nonlinear Force Coefficients for Squeeze Film Dampers

Progress Presentation

Response of an Open Ends Squeeze Film Damper to SERIES OF Impact Loads

Proposal

Experimental Response of a Sealed Ends Squeeze Film Damper to SERIES OF Impact Loads

2

Wet (Bubbly) seals: identification of force coefficients

Progress Presentation

Measurement of Leakage and Estimation of Force Coefficients in a Short Length Annular Seal Supplied with a Liquid/Gas Mixture  (Stationary Journal)

 

Proposal

Leakage and Force Coefficients in a Wet Annular Seal: Influence of Journal Rotational Speed

 

3

A Test Rig For Evaluation of Thrust Bearings and Face Seals

Progress Presentation

Revamping and Preliminary Operation of a Thrust Bearing Test Rig

 

Proposal

A Water Lubricated Hybrid Thrust Bearing: Load Capacity and Identification of Axial Stiffness and Damping Coefficients

 

4

large size metal mesh foil bearings and test rigs for load capacity

Progress Presentation

Identification of Structural Stiffness and Material Loss Factor in a Large Diameter Metal Mesh Foil Bearing

 

Proposal

Experiments on the Performance of Large Diameter Metal Mesh Foil Bearings: Radial and Thrust

 

 

 

NEW PROPOSALS

5

A Hybrid Computational Analysis  for Shallow Depth, Grooved  Annular Seals for Pumps

 

PRoposal

 

 

6

On the Morton effect: Simplified Predictive Model for a Thermally Instability Induced by Differential Heating in a Journal Bearing

 

PROPOSAL

 

 

7

Novel Carbon-graphite Gas Bearings and Seals for turbomachinery

Proposal  (Hardware donated by New Way Bearings)

 

 

8

Pressing needs for  seals /Bearing software  development/update

Proposal

 

2015 TRC report titles and numbers

SFDs

TRC-SFD-01-15 Response of an Open Ends Squeeze Film Damper to Intermittent Impact Loads

Sung-hwa Jeung and Luis San Andrés

 

Bearings & Couplings

TRC-B&C-01-15 A Computational Model for Tilting Pad Journal Bearings with Pad Flexibility

Yingkun Li and Luis San Andrés

 

TRC-B&C-02-15 Revamping and Preliminary Operation of a Thrust Bearing Test Rig

Michael Rohmer, Scott Wilkinson and Luis San Andrés

 

TRC-B&C-03-15  Identification of Structural Stiffness and Material Loss Factor in a Large Diameter Metal Mesh Foil Bearing

Travis Cable and Luis San Andrés

 

Seals

TRC-Seal-01-15   Measurement of Leakage and Estimation of Force Coefficients in a Short Length Annular Seal Supplied with a Liquid/Gas Mixture  (Stationary Journal)

Luis San Andrés, Qing Liu, Xueliang Lu

 

TRC-Seal-02-15 Issues and Considerations for the Accurate Modeling of Long, Grooved Annular Seals for Pumps

Tincheng Wu and Luis San Andrés