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TARGET
PROJECT: |
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Computer-aided
control systems synthesis, analysis and design. Systems may be multiple
input, multiple output, continuous or discrete-time, linear or nonlinear,
lumped or distributed parameter. Classical and modern (Hinfinity, adaptive,
Mu) controller synthesis techniques. Areas of application include vibration
management and suppression, pointing and tracking, disturbance rejection,
modal control, imbalance compensation, regulation, motion control, motor
commutation, flexible body control, and other electromechanical systems.
Design tools include Matlab/ Simulink and Mathematica. |
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SALARY: |
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$ --per hour |
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HOURS: |
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55 hours per week |
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PROJECT
LENGTH: |
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-- week(s) |
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SITE: |
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-- |
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TARGET
COMPANY: |
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A
performance oriented company that understands their current position in
their industry/ marketplace, has formulated a plan of action to ensure
a leadership position in their industry/ marketplace into the future, and
is actively pursuing the implementation of the plan of action. Seeking
an open, stimulating, collaborative, knowledge and experience based work
environment where meeting or exceeding the team and customer requirements
are a key measure of effectiveness. |
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SIZE: |
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-- to -- employees |
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INDUSTRY: |
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No Preference. |
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| EXPERIENCE |
| 7/9/00
to Present |
Thearality,
Inc
|
Glendale,
AZ
|
| Control/
Systems Engineer |
| Model-based
systems and controls design engineering for hybrid-time, lumped or distributed-parameter
systems in the areas of flexible body dynamics, vibration management, mechanical
& optical precision pointing systems, and smart structures. |
|
| 2/1/99
to 7/8/00 |
The
Boeing Company
|
Canoga
Park, CA
|
| Control
Engineer |
| International
Space Station, Beta Gimbal Assembly, Electronic Control Unit (ECU) troubleshooting
and repair including firmware and electronics for torque motor control
and motor commutation. ECU system level modeling and analysis. Led technical
manual development. Developed an integrated, high fidelity Electronic Control
Unit/ Beta Gimbal Assembly/ Flexible Solar Array systems simulation. Analysis
and prediction of controls/ structure interaction effects and system level
performance for off-nominal scenarios. Synthesis of contingency controllers
for off-nominal on-orbit modal variations. Development of flexible link
space robot manipulator mathematical models for precision pointing controls
development and integration into full-up spacecraft system model. |
|
| 4/1/98
to 2/1/99 |
Honeywell
|
Glendale,
AZ
|
| Technical
Director |
| Led
the systems engineering effort for an SBL actuator/ isolator. This included
the development and preparation of trade studies in the areas of configuration,
power, weight, size, performance and cost. |
|
| 6/1/96
to 3/1/98 |
TASC
|
Chandler,
AZ
|
| Orbital
Control Engineer |
| IRIDIUM
space vehicle environment, actuation, sensing, and multi-body dynamics
modeling validation and verification. Also, responsible for interface electronics
validation, ACS/ OCS hardware-in-the-loop test result analysis and reconciliation,
as well as observer dynamics performance verification. |
|
| 9/2/94
to 5/1/96 |
Honeywell
|
Glendale,
AZ
|
| System/
Control Engineer |
| Synthesized
a precision optical bench controls architecture to provide simultaneous
optical payload steering, active suppression of optical payload attached
disturbances such as those emanating from cryocoolers, and hybrid isolation
of optical payload from spacecraft bus borne disturbances. |
|
| 9/1/94
to 2/1/95 |
Honeywell
|
Glendale,
AZ
|
| Control
Engineer |
| Performed
structural damping robust performance analysis for a tuned mass damper
device interacting with a low structurally damped flexible mast in the
space environment. |
|
| 8/21/92
to 5/15/98 |
Arizona
State University
|
Tempe,
AZ
|
| Graduate
Student |
| Researched,
developed and proved a technique for deriving implementable, near-optimal,
direct sampled-data controllers for multiple-input/ multiple-output distributed-parameter
systems. |
|
| 2/1/92
to 7/1/94 |
Honeywell
|
Glendale,
AZ
|
| Control/
Systems Engineer |
| Performed
system architecture trades and system modeling and control including gyrodynamics.
Patent pending for innovative control architecture that permits requisite
MAGCMG torque generation while maintaining nominal magnetic actuator gaps
and vibration isolation in 6 DOF. Developed electronic circuitry that permitted
the gap observed by the magnetic actuator to be ascertained based on the
actuator’s self-inductance. Also examined ways of reducing actuator-induced
vibration disturbances. |
|
| 7/1/91
to 3/1/93 |
Honeywell
|
Glendale,
AZ
|
| Electrical/
Control Engineer |
| Developed,
modeled, and tested electronic control circuitry which provided position
and rate control for the ISS solar array Alpha Joint motor during test.
This circuitry included digital motor commutation for the brushless DC
motor. |
|
| 6/1/90
to 4/1/91 |
Honeywell
|
Glendale,
AZ
|
| Dynamics
Engineer |
| Control
moment gyroscope rotor spin bearing mechanical dynamics modeling and simulation
for retainer stability criteria and to analyze which factors may contribute
to extending the bearing's life. |
|
| 2/1/89
to 12/1/91 |
Honeywell
|
Glendale,
AZ
|
| Simulation/
Control Engineer |
| Developed
a MIMO, hybrid-time, active structural dynamics controller for a flexible
space telescope using the high authority/ law authority (HAC/ LAC) control
approach. The HAC portion of the controller was synthesized using the H-infinty
control methodology and implemented digitally. The LAC portion was implemented
analog. The actuators consisted of eighteen proof-mass actuators. Eighteen
collocated accelerometers were used as sensors for feedback. |
|
| 11/1/87
to 9/1/88 |
Honeywell
|
Glendale,
AZ
|
| Control
Engineer |
| Discrete-time
control of antennae pointing gimbals for jitter reduction and accuracy
analysis. Derived methods of utilizing digital torque motor commutation
for ripple and cogging mitigation. |
|
| 3/1/86
to 5/1/87 |
Honeywell
|
Glendale,AZ
|
| Control
Engineer |
| Control
moment gyroscope & reaction wheel modeling and simulation for stability
and performance analysis as well as system sizing and requirements validation. |
|
| 1/20/86
to 12/7/88 |
Honeywell
|
Glendale,
AZ
|
| Control
Engineer |
| Participated
in the development of a six degree-of-freedom hexapod pointing mount including
mathematical modeling, controls synthesis, computer simulation, hardware
integration and test. The pointing mount consisted of an active vibration
isolation system utilizing a dual-mode approach that combined magnetic
actuators with linear actuators. The laboratory environment included a
forward body zero-g suspension system and aft body controls, all of which
were modeled and simulated. |
| EDUCATION |
| 05/98 |
Arizona
State University
|
Tempe,
Arizona USA
|
| PhD.
- Electrical Engineering |
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| 12/92 |
Arizona
State University
|
Tempe,
Arizona USA
|
| Masters
- Electrical Engineering |
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| 12/85 |
South
Dakota School of Mines & Technology
|
Rapid
City, South Dakota USA
|
| B.A.
/ B.S. - Electrical Engineering |
| SKILLS |
| Skill
Name |
Level |
Experience
|
Date
Last Used
|
|
| time
management |
Expert |
15
yrs.
|
Currently
used
|
|
| inter-personal
relationships |
Expert |
15
yrs.
|
Currently
used
|
|
| adept
problem solver |
Expert |
15
yrs.
|
Currently
used
|
|
| good
listening habits |
Expert |
15
yrs.
|
Currently
used
|
|
| control
system stability analysis |
Expert |
13
yrs.
|
Currently
used
|
|
| electrical
circuit analysis |
Expert |
13
yrs.
|
Currently
used
|
|
| control
system synthesis and analysis |
Expert |
12
yrs.
|
Currently
used
|
|
| modeling
& simulation |
Expert |
12
yrs.
|
Currently
used
|
|
| classical
control design |
Expert |
12
yrs.
|
Currently
used
|
|
| rigid
body dynamics modeling and simulation |
Expert |
12
yrs.
|
Currently
used
|
|
| model
based controls design |
Expert |
12
yrs.
|
Currently
used
|
|
| digital
control design |
Expert |
10
yrs.
|
Currently
used
|
|
| real-time
controller requirememts specification |
Expert |
10
yrs.
|
Currently
used
|
|
| integrated,
high-fidelity modeling and simulation |
Expert |
10
yrs.
|
Currently
used
|
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| precision
pointing system design |
Expert |
10
yrs.
|
Currently
used
|
|
| motion
control system design & analysis |
Expert |
10
yrs.
|
Currently
used
|
|
| multi-DOF
systems modeling & control |
Expert |
10
yrs.
|
Currently
used
|
|
| multi-body
systems modeling and control |
Expert |
10
yrs.
|
Currently
used
|
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| presentations |
Intermediate |
10
yrs.
|
Currently
used
|
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| lab
equipment operation and programming |
Intermediate |
10
yrs.
|
Currently
used
|
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| performance
metric achieving controller synthesis |
Expert |
10
yrs.
|
Currently
used
|
|
| quaternion
algebra application |
Expert |
10
yrs.
|
Currently
used
|
|
| MIMO
frequency domain controls design |
Expert |
10
yrs.
|
Currently
used
|
|
| integrated
structure/ optics/ thermal modeling & sim |
Expert |
9
yrs.
|
Currently
used
|
|
| vibration
management |
Expert |
9
yrs.
|
Currently
used
|
|
| controls/
structure interaction analysis |
Expert |
9
yrs.
|
Currently
used
|
|
| electromechanical
system synthesis |
Intermediate |
8
yrs.
|
Currently
used
|
|
| robust
cobtrol system synthesis |
Expert |
8
yrs.
|
Currently
used
|
|
| structural
dynamics control synthesis |
Expert |
8
yrs.
|
Currently
used
|
|
| flexible
body dynamics modeling & simulation |
Intermediate |
8
yrs.
|
Currently
used
|
|
| stabilazation
system design |
Expert |
8
yrs.
|
<
1 year ago
|
|
| indirect
sampled-data control system synthesis |
Expert |
8
yrs.
|
Currently
used
|
|
| Matlab/
Simulink |
Expert |
7
yrs.
|
Currently
used
|
|
| distributed
parameter system moeling and control |
Expert |
7
yrs.
|
Currently
used
|
|
| sensor
selection & requirements definition |
Expert |
7
yrs.
|
Currently
used
|
|
| actuator
selection and requirements definition |
Expert |
7
yrs.
|
Currently
used
|
|
| infinite-dimensional
system control synthesis |
Expert |
7
yrs.
|
Currently
used
|
|
| structural
flexibility control |
Expert |
7
yrs.
|
Currently
used
|
|
| isolation
system design |
Expert |
7
yrs.
|
Currently
used
|
|
| hardware-in-the-loop
testing |
Intermediate |
7
yrs.
|
1
to 2 years ago
|
|
| MATRIXx/
SystemBuild |
Intermediate |
6
yrs.
|
3
to 4 years ago
|
|
| real-time
control processor requirement definitio |
Intermediate |
6
yrs.
|
Currently
used
|
|
| model
based systems engineering |
Expert |
6
yrs.
|
Currently
used
|
|
| MS
Office Suite |
Intermediate |
6
yrs.
|
Currently
used
|
|
| motor
controller synthesis |
Intermediate |
5
yrs.
|
<
1 year ago
|
|
| modern
control design |
Expert |
5
yrs.
|
Currently
used
|
|
| digital
signal processing |
Intermediate |
5
yrs.
|
Currently
used
|
|
| electrical
circuit design |
Intermediate |
5
yrs.
|
3
to 4 years ago
|
|
| Mathematica |
Intermediate |
5
yrs.
|
Currently
used
|
|
| cost
account managemant |
Intermediate |
5
yrs.
|
1
to 2 years ago
|
|
| near
optimal controller synthesis |
Expert |
5
yrs.
|
Currently
used
|
|
| direct
sampled-data control system synthesis |
Expert |
4
yrs.
|
Currently
used
|
|
| nonlinear
control system synthesis |
Intermediate |
4
yrs.
|
1
to 2 years ago
|
|
| FORTRAN
programming |
Intermediate |
4
yrs.
|
>
4 years ago
|
|
| advanced
mathematical analysis and application |
Intermediate |
4
yrs.
|
Currently
used
|
|
| Hinfinity
control synthesis |
Expert |
4
yrs.
|
Currently
used
|
|
| magnetic
actuator control system design |
Expert |
4
yrs.
|
>
4 years ago
|
|
| C
programming |
Intermediate |
3
yrs.
|
Currently
used
|
|
| orbital
dynamics modeling and simulation |
Intermediate |
3
yrs.
|
3
to 4 years ago
|
|
| satellite
attitude control |
Intermediate |
3
yrs.
|
3
to 4 years ago
|
|
| smart
structure design |
Intermediate |
3
yrs.
|
3
to 4 years ago
|
|
| adaptive
control system synthesis |
Intermediate |
2
yrs.
|
Currently
used
|
|
| LISP
programming |
Intermediate |
2
yrs.
|
>
4 years ago
|
|
| satellite
orbit control |
Intermediate |
2
yrs.
|
3
to 4 years ago
|
|
| flexible
link robot manipulator modeling |
Intermediate |
2
yrs.
|
Currently
used
|
|
| active/
pasive acoustic control |
Beginner |
1
yrs.
|
>
4 years ago
|
|
| control
moment gyroscope array control |
Beginner |
1
yrs.
|
1
to 2 years ago
|
|
| momentum
control system design |
Beginner |
1
yrs.
|
1
to 2 years ago
|
| MEMBERSHIPS |
| 4/1/94
to Present |
Amer.
Institute of Aeronautics and Astronautics
|
Member
|
|
| 6/1/92
to Present |
The
International Society for Optical Engineering
|
Member
|
|
| 1/6/90
to Present |
Institute
of Electrical and Electronics Engineers
|
Member
|
|
| 4/1/85
to Present |
Tau
Beta Pi
|
Member
|
|
