Dr. Barrows has over 30 years of experience in analysis and simulation of complex mechanical systems for NASA and various agencies of the Department of Defense. His engineering expertise includes aerodynamics, multi-body dynamics, and simulation. A particular expertise is simulation of multibody systems. He has either directly created or supervised the construction of high fidelity simulations of several systems, including the attitude control of a satellite, a generalized robotic manipulator model, the space station mobile transporter, and the flight mechanics of precision guided airdrop systems. Other work has included successful airdrop tests of a gliding autogyro with folding rotor blades, and a concept definition of a large vehicle designed to fly in ground effect.
He has served as Section Chief of the Dynamical Systems Group at Draper, in which capacity he served as the engineering task leader of for the Space Station Dynamic Interaction program. During the past ten years, Dr. Barrows has focused on the development of rocket simulations. This has included a wide variety of rockets for both private and government sponsors, culminating in work on NASA's space launch system.
Dr. Barrows has over 30 years of experience in analysis and simulation of complex mechanical systems for NASA and various agencies of the Department of Defense. His engineering expertise includes aerodynamics, multi-body dynamics, and simulation. A particular expertise is simulation of multibody systems. He has either directly created or supervised the construction of high fidelity simulations of several systems, including the attitude control of a satellite, a generalized robotic manipulator model, the space station mobile transporter, and the flight mechanics of precision guided airdrop systems. Other work has included successful airdrop tests of a gliding autogyro with folding rotor blades, and a concept definition of a large vehicle designed to fly in ground effect.
He has served as Section Chief of the Dynamical Systems Group at Draper, in which capacity he served as the engineering task leader of for the Space Station Dynamic Interaction program. During the past ten years, Dr. Barrows has focused on the development of rocket simulations. This has included a wide variety of rockets for both private and government sponsors, culminating in work on NASA's space launch system.
1. Introduction2. The system mass matrix3. Slosh modeling4. Pendulum model5. Forces and torques6. Engine interactions7. Linearization8. Simulation parameters9. Stability and control10. Implementation and analysis
Dr. Barrows has over 30 years of experience in analysis and
simulation of complex mechanical systems for NASA and various
agencies of the Department of Defense. His engineering expertise
includes aerodynamics, multi-body dynamics, and simulation. A
particular expertise is simulation of multibody systems. He has
either directly created or supervised the construction of high
fidelity simulations of several systems, including the attitude
control of a satellite, a generalized robotic manipulator model,
the space station mobile transporter, and the flight mechanics of
precision guided airdrop systems. Other work has included
successful airdrop tests of a gliding autogyro with folding rotor
blades, and a concept definition of a large vehicle designed to fly
in ground effect.
He has served as Section Chief of the Dynamical Systems Group at
Draper, in which capacity he served as the engineering task leader
of for the Space Station Dynamic Interaction program. During the
past ten years, Dr. Barrows has focused on the development of
rocket simulations. This has included a wide variety of rockets for
both private and government sponsors, culminating in work on NASA’s
space launch system. Dr. Jeb Orr has over 16 years of experience in
mission-critical software engineering, flight mechanics,
model-based design, flight control system architecture, guidance
and navigation, structural dynamics, and related disciplines. He
has authored or co-authored more than 30 peer-reviewed publications
and technical reports and has conducted several invited lectures in
the areas of dynamics and control. Dr. Orr has had a key role in
various research initiatives supporting NASA and Department of
Defense (DoD) emerging technologies. Dr. Orr was a principal
designer of the Space Launch System Adaptive Augmenting Control
(AAC) algorithm, and developed the FRACTAL software package, now
the standard NASA design model for SLS flight control analysis. In
2013 Dr. Orr was awarded the NASA Exceptional Engineering
Achievement Medal in recognition of his contributions to the SLS
program. Dr. Orr serves as an officer of the SAE/IEEE Aerospace
Control and Guidance Systems Committee (ACGSC), and conducts
courses in aerospace dynamics and flight control for NASA Marshall
Space Flight Center and the NASA Engineering and Safety Center
(NESC).
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