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Schaub, Hanspeter Professor and the Glenn L. Murphy Chair

Positions

Research Areas research areas

Research

research overview

  • Dr. Schaub's research continues in the field of electrostatic actuation of space objects, attitude kinematics, momentum based attitude control, deployable space structures, as well as relative motion simulation, sensing and control. His AVS Lab obtained a vacuum chamber in 2016 for charging experiments. An DURIP grant was awarded to obtain charging and sensing equipment. New research is looking into the dynamics deployable space structures, the analysis and experimental validation of the E-tractor concept. Dr. Schaub is leading the ADCS algorithm development for the EMM mission. He researches GPU based SRP and atmospheric drag modeling, autonomous constrained attitude control, the equations of motion of complex spacecraft dynamics with flexing, slosh and unbalanced wheels, as well as flight software architectures. A strong emphasis has become the electrostatic detumbling of passible space objects, as well as autonomous attitude control and momentum management.

keywords

  • astrodynamics, spacecraft formation flying, spacecraft attitude dynamics and control, nonlinear dynamics and control, relative motion sensing, electrostatic actuation in a space environment, charged vacuum and plasma chamber experiments, deployable lightweight space structures, astrodynamics software architecture, mission analysis and support

Publications

selected publications

Teaching

courses taught

  • ASEN 5010 - Spacecraft Attitude Dynamics and Control
    Primary Instructor - Spring 2018 / Spring 2019
    Includes rigid body kinematics and spacecraft attitude descriptions, torque-free attitude dynamics, static attitude determination, motion and stability due to gravity gradient torque and spinning craft, passive and active methods of attitude control, nonlinear regulator and attitude tracking feedback controlaws. Recommended prerequisite: ASEN 3200 or equivalent or instructor consent required.
  • ASEN 6010 - Advanced Spacecraft Dynamics and Control
    Primary Instructor - Fall 2018 / Spring 2019
    Studies the dynamic modeling and control of spacecraft containing multiple momentum exchange devices, and/or flexible spacecraft components. Will develop nonlinear feedback control algorithms, explore singularity avoidance strategies. The second half of the course derives analytical methods (D'Alembert's equations, Lagrange's equations, Boltzmann Hamel equations) to model a hybrid rigid/flexible spacecraft system.
  • ASEN 6014 - Spacecraft Formation Flying
    Primary Instructor - Fall 2019
    Studies the dynamic modeling and control of spacecraft formations orbiting about a planet. Investigate linear and nonlinear relative motion descriptions, rectilinear and curvilinear coordinates, orbit element difference based descriptions, J2-invariant relative orbits, as well as Lyapunov-based relative motion control strategies. Recommended prerequisite: ASEN 5050 or instructor consent required. May be repeated up to 6 total credit hours.

Background

International Activities

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