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FORMER STUDENTS TRIBOLOGY GROUP

Dr. San Andres – Graduated Students

updated on December 2012

A. Doctorate (Ph.D.)

Name	Dissertation topic	Graduation date	Current Employment
Thomas Chirathadam	Modeling and Test Evaluation of Metal Mesh Foil Bearings	December 2012	Southwest Research Institute, San Antonio
Keun Ryu	Thermal Management in Foil Bearings for MTM	December 2011	Borg-Warner Turbo Systems, NC
Tae Ho Kim	Computational Thromohydrodynamic Analysis & Experimental Verification of Gas Foil Bearings	December 2008	Kookmin University, Seoul, S. Korea
Adolfo Delgado	Analysis of Grooved Oil Seals and SFDs + Experimental Verification	December 2008	GE Research CenterC, NY
Oscar de Santiago	Imbalance Response of Rotor Supported on Integral Squeeze Film Dampers and Tilting Pad Bearings	May 2002	CIATEQ A.C., Mexico
Marco Faria	Finite Element Analysis of High Speed Grooved Gas Bearings	June 1999	University of Campinas, Brasil
Sergio Diaz	Effect of Air Entrapment on the Performance of Squeeze Film Dampers	May 1999	University Simon Bolivar, Venezuela
Jiming Li	Bulk-Flow Analysis of Multiple Pocket Gas Damper Seals	December 1998	Siemens Demag Delaval PA
Grigory Arauz,	Analysis of Two‑Phase Flow in Damper Seals for Cryogenic Turbomachinery	December 1996	Schlumberger, TX
Zhao Yang	Thermohydrodynamic Analysis of Product Lubricated Hydrostatic Bearings in Turbulent Flow Regime	December 1993	Cummins Engines, IN

B. Masters

Name	Thesis title	Graduation date	Current Employment
Yujiao Tao	Effect of Pivot Flexibility on Tilting Pad Bearings	December 2012	Samsun Techwin, Houston
Paola Mahecha	Parameter identification of sealed ends SFDs- large dynamic loads	August 2011	N/A (Colombia)
Sanjeev Seshaghiri	Parameter identification of open ends SFDs- large dynamic loads	May 2011	VYCON, CA
Zachary Ashton	High Temperature Brush Seals	May 2009	Borg-Warner Turbo Systems, NC
Arian Vistamehr	Rotordynamics of Automotive Turbochargers	May 2009	PhD University of Texas, Austin, TX
Thomas Chirathadam	Development of Metal Mesh Foil Bearings	May 2009	TAMU PhD
Yaying Niu	Hybrid Gas Bearings for TM	May 2009	TAMU Phd
Keun Ryu	Gas Bearings for Oil Free Turbomachinery	May 2008	TAMU PhD
Anthony Breedlove	Effects of Temperature on Structural Parameters of Foil Bearings	May 2007	Schlumberger, TX
Jose Baker	Hybrid Brush Seals for Turbines	May 2006	KBR, Houston, TX
Ash Maruyama	Nonlinear Dynamics of Automotive Turbochargers	Aug 2007	Sulzer Turbo, Houston, TX
Dario Rubio	Rotordynamics of Gas Foil Bearings	December 2005	Bechtel Corp., Houston, TX
Juan Rivadeneira	Rotordynamics of Automotive Turbochargers	December 2005	Bechtel Corp., Houston, TX
Adolfo Delgado	Identification of force coefficients in a sealed SFD	December 2005	TAMU PhD
Suzan Xhu	Gas Tilting Pad Bearings for Turbochargers	May 2004	SKF Shanghai, China
K Balantrapu	Identification of Parameters in Flexible Rotor-Bearing Systems	May 2004	Capgemini Consulting
Jason Kerth	Turbocharger Rotordynamics	August 2003	Dresser-Rand, Houston, TX
Deborah Wilde	Measurement of the Dynamic Forced Performance of Air Bearing Supported Rotors	May 2002	Honeywell Internacional, CA
Thomas Soulas	Bulk-Flow Analysis of Lomakin Bearings for Cryogenic Turbopumps	October 2001	Dresser Rand, Houston, TX
Thomas de Boer, U Twente	Dynamics of turbocharger rotors supported on floating ring bearings	August 2000 U. Twente
Julio Naranjo	Dynamic Response of a Rotor Supported on Floating Ring Journal Bearings	June 1999	Simco, Venezuela
Oscar de Santiago	Imbalance Response of Rotor Supported on Integral Squeeze Film Dampers	December 1998	TAMU PhD
Nicole Zirkelback	Computational Analysis of Spiral Groove Trust Bearings and Face Seals	December 1997	Martin Marietta, GA
David Ransom	Test Rotordynamic Force Coefficients in Gas Damper Seals	August 1997	Southwest Research Institute, SanAntonio, TX
Daniel Lubell	Imbalance Response of a Rotor Supported on Off-Centered Squeeze Film Dampers	May 2000	Calnetix, Los Angeles, CA
Nick Walton	Measurements of Static Load Characteristics of a Flexure Pivot Tilt Pad Hydrodynamic Bearing	August 1995	Bell Helicopters, Dallasm TX
Miller Robison	A Test Rig for the Identification of Rotordynamic Coefficients of Fluid Film Bearings	August 1995	Solar Turbines, San Diego, CA
Hector Laos	Measurements of Unbalance Response in a Squeeze Film Damper Test Rotor Kit	May 1993	General Electric, PA
Grigory Arauz	Experimental Study of a Grooved Squeeze Film Damper	May 1993	Schlumberger, Houston
Julio Semanate	Analysis of Floating Multi-Ring Oil Seals	December 1992	Private consultant, Ecuador

Oscar de Santiago

Oscar came from Queretaro, Mexico, and obtained his MS and PhD degrees at Texas A&M. Oscar worked on developing on-site parameter identification methods and applying them to extract force coefficients from fluid film bearings and SFDs.

Oscar is a happy father and a loving husband. The picture shows him with his women: Adriana and Adrianita.

Sr. Product Design Engineer

Dresser-Rand Company

Paul Clark Dr.

Olean, NY 14760-056

Oscar_DeSantiago@Dresser-Rand.com

Dresser-Rand Rotordynamics Group

Paul Clark Drive

Olean, NY 14760

Phone: 716 375 3691

Thomas_A_Soulas@Dresser-Rand.com

Thomas Soulas

After receiving his engineering degree in France, Thomas came to Texas A&M University in 2000 to work with Dr. San Andres on seal and process fluid bearings analysis, in partnership with the French spacecraft engine manufacturer Snecma. His experience in College Station was most rewarding. Thomas obtained his Master of Science degree in Mechanical Engineering in 2001, Thomas started as a Rotor Dynamics Engineer at Dresser-Rand, in Olean, NY, in 2002. In 2004, he was appointed Supervisor of the Rotor Dynamics Group at Dresser-Rand, a world leader in energy solutions for the oil, gas and chemical industries. His parents, brother and sister live in Perpignan, in the South of France.

Miller Robison

Originally from the arid plains of Texas, moved to sunny California to work in Solar Turbines and Rocketdyne. Back at Solar in San Diego, Miller plays with lots of gas turbines, name the size! Miller is the tallest boy in the picture.

SOLAR Turbines, San Diego, Ca

robison_miller_m@solarturbines.com