Control Software

Thuy Nguyen

*** ******** ******

Sunnyvale, CA **086

****.*******@*********.***

www.linkedin.com/in/tnguyen2

408-***-**** (C)

Current DoD Secret Clearance

OBJECTIVE:

To obtain a technical position related to the design and development of

robotic or automated systems.

EXPERIENCE:

Experience in the analysis, design and development for algorithm and

software for robotic kinematics and dynamics, servo control, dynamics

modeling and simulation, motion and force control, and user interface

Hardware: VMIC VMEbus Single Board Computer, DSP TMS320, PIC

Microcontroller

Software: C, C++, FORTRAN, BASIC, ADA, MatLab, Simulink, MATRIXx, X-

Window, Autolev, Rational Rhapsody, LDRA

LOCKHEED MARTIN SPACE SYSTEMS, SUNNYVALE, CALIFORNIA (01/2001 - 11/2009)

. Supported Advanced Extra High Frequency (AEHF) Attitude Control System

group primarily in the areas of software algorithm development and

analysis, dynamic modeling and simulation, and flight software

verification and test for both non real-time and vehicle integrated

test environment. Accomplishments included: development of algorithms

and simulation for: sun acquisition, sun dwell and attitude target,

derivation and integration of a linearized equation of motion for fuel

slosh dynamics into a non-linear time domain simulation of the

satellite dynamics, stability analysis of a spacecraft three-axis model

with the linear slosh model using Matlab, launch operation training

support and perform flight software integration test and verification.

. Supported the GN&C group of the HEO Space-Based InfraRed Systems

(SBIRS) in the black box test development and verification of the on-

board Stored programs

. Supported flight software verification and white box testing of the

Space InfraRed Telescope Facility (SIRTF/Spitzer). Accomplishments

included: reviewing flight software code, procedure and script

developments of unit, unit integration and stress tests, performing

tests both in simulation and hardware in-the-loop environments, and

preparation and training for launch operations.

LOCKHEED MARTIN ENGINEERING & SCIENCES, HOUSTON, TEXAS (05/1988-01/2001)

. Supported the research, design and development of robotic manipulator

applications in the Robotics System Evaluation Laboratory at the NASA

Johnson Space Center. Responsible for a variety of tasks ranging from

conceptual design, development of simulation and embedded software to

servo control analysis, design and implementation. Accomplishments

included:

o Development of a dual arm and force control capabilities for the

teleoperated crew training facility

o Development of a trajectory planner for a kinematically

redundant manipulator with collision, joint limit and

singularities avoidance capabilities.

o Parameter estimation to characterize motor and joint friction

and stiction, link mass and inertias for a 7-joint manipulator.

o Design, develop and verify embedded control algorithms to

provide teleoperation functionalities such as single joint

control, Cartesian control, haptic interface and endpoint force

feedback control to a commercial manipulator.

o Conduct a research and development study to demonstrate the

feasibility of an endpoint impedance control for the Shuttle

Remote Manipulator which is a teleoperated manipulator with a

significant time delay.

MARTIN MARIETTA AEROSPACE, DENVER, COLORADO (1984 - 1988)

Supported the robotic software synthesis effort in the Advanced

Automation Technology research laboratory. Accomplishment include:

develop and incorporate several novel features to a general robotic

analysis and simulation package (ROBSIM) in the areas of moving

base/arms dynamics, linearization, joint flexibility, variable step and

order integration

Provided GN&C analysis support for the Venus Radar mapper (Magellan)

satellite project. Accomplishments include: test and verification of

flight software algorithms for attitude propagation, attitude and gyro

bias error estimation with least square recursive filter

implementation, and attitude control with reaction wheels and

thrusters.

McDONNELL DOUGLAS AEROSPACE, HOUSTON, TEXAS (1980 - 1984)

Supported flight operation of the Shuttle Remote Manipulator system.

Accomplishment include: develop and implement simulation models;

perform simulation analysis of the Orbiter/ RMS/ payload dynamics and

present results to the Orbiter flight crews at the NASA Johnson Space

center.

EDUCATION:

University of Houston, Houston, Texas (1995 - 1997)

Graduate credits in Flight Control System Design, Non-linear Control

System Design.

University of Colorado, Boulder, Colorado (1985 - 1988)

Graduate credits in Advanced Engineering Mathematics, Computational

Dynamics.

Colorado State University, Ft. Collins, Colorado (1984 - 1985)

Graduate credits in Digital Control, Signal Processing.

University of Houston, Houston, Texas (1980 - 1984)

Graduate credits in Finite Element Analysis, Vibration, Modern Control

Analysis and Design

Clemson University, Clemson, South Carolina (1972 - 1976)

Bachelor of Science in Mechanical Engineering.

PUBLICATIONS:

Nguyen, T.K., Wang, J.C., Alder, K.A., "Force Accommodation Control for

the Shuttle Remote Manipulator: A unique problem", IEEE Robotics and

Automation Conference 1990.

Nguyen, T.K., Wang, J.C, Alder, K.A., "Force Accommodation Control for

the Shuttle Remote Manipulator: Experimental Results", CIRSSE Conference

at Renselear Polytechnique Institute 1992.

Bluethmann, W., Rehnmark F., Nguyen, T. and Aldridge, H., "Cooperative

Manipulation Testbed: A facility for Space Robot Control System

Development", International Symposium on Artificial Intelligence,

Robotics and Automation in Space 2001.

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