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Wolfgang Steiner
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Journal Articles

The Use of Slack Variables in the Adjoint Method Handling Inequality Constraints in Optimal Control and the Application to Tumor Drug Dosage

Accepted Manuscript
Philipp Eichmeir, Karin Nachbagauer, Wolfgang Steiner
Journal: Journal of Computational and Nonlinear Dynamics
Publisher: ASME
Article Type: Research-Article
J. Comput. Nonlinear Dynam.
Paper No: CND-24-1119
https://doi.org/10.1115/1.4067128
Published Online: November 13, 2024
View Article titled, The Use of Slack Variables in the Adjoint Method Handling Inequality Constraints in Optimal Control and the Application to Tumor Drug Dosage
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Topics: Drugs, Optimal control, Tumors, Biomedicine, Blood, Cancer, Computation, Gradient methods, Optimization
Journal Articles

Time-Optimal Control of Dynamic Systems Regarding Final Constraints

Philipp Eichmeir, Karin Nachbagauer, Thomas Lauß, Karim Sherif, Wolfgang Steiner
Journal: Journal of Computational and Nonlinear Dynamics
Publisher: ASME
Article Type: Research-Article
J. Comput. Nonlinear Dynam. March 2021, 16(3): 031003.
Paper No: CND-20-1290
https://doi.org/10.1115/1.4049334
Published Online: January 22, 2021
View Article titled, Time-Optimal Control of Dynamic Systems Regarding Final Constraints
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Topics: Algorithms, Boundary-value problems, Differential equations, Dynamic systems, Errors, Optimal control, Optimization, Robots, Time optimal control, Pendulums
Journal Articles

The Adjoint Method for Time-Optimal Control Problems

Philipp Eichmeir, Thomas Lauß, Stefan Oberpeilsteiner, Karin Nachbagauer, Wolfgang Steiner
Journal: Journal of Computational and Nonlinear Dynamics
Publisher: ASME
Article Type: Research-Article
J. Comput. Nonlinear Dynam. February 2021, 16(2): 021003.
Paper No: CND-20-1345
https://doi.org/10.1115/1.4048808
Published Online: November 18, 2020
View Article titled, The Adjoint Method for Time-Optimal Control Problems
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Topics: Time optimal control, Vehicles, Optimal control, Equations of motion, Boundary-value problems, Dynamic systems, Roads
Proceedings Papers

The Adjoint Gradient Method for Time-Optimal Control of a Moon Landing: Ascent, Descent, and Abort

Philipp Eichmeir, Karin Nachbagauer, Wolfgang Steiner
Proc. ASME. IDETC-CIE2020, Volume 2: 16th International Conference on Multibody Systems, Nonlinear Dynamics, and Control (MSNDC), V002T02A001, August 17–19, 2020
Publisher: American Society of Mechanical Engineers
Paper No: DETC2020-22034
https://doi.org/10.1115/DETC2020-22034
View Paper titled, The Adjoint Gradient Method for Time-Optimal Control of a Moon Landing: Ascent, Descent, and Abort
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Topics: Boundary-value problems, Dynamic systems, Gradient methods, Nozzles, Robotics, Robots, Thrust, Time optimal control
Journal Articles

The Discrete Adjoint Gradient Computation for Optimization Problems in Multibody Dynamics

Thomas Lauß, Stefan Oberpeilsteiner, Wolfgang Steiner, Karin Nachbagauer
Journal: Journal of Computational and Nonlinear Dynamics
Publisher: ASME
Article Type: Research-Article
J. Comput. Nonlinear Dynam. May 2017, 12(3): 031016.
Paper No: CND-16-1336
https://doi.org/10.1115/1.4035197
Published Online: December 5, 2016
View Article titled, The Discrete Adjoint Gradient Computation for Optimization Problems in Multibody Dynamics
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Topics: Computation, Equations of motion, Interpolation, Multibody dynamics, Multibody systems, Optimization, Trajectories (Physics), Robots, Algorithms, Signals
Journal Articles

The Use of the Adjoint Method for Solving Typical Optimization Problems in Multibody Dynamics

Karin Nachbagauer, Stefan Oberpeilsteiner, Karim Sherif, Wolfgang Steiner
Journal: Journal of Computational and Nonlinear Dynamics
Publisher: ASME
Article Type: Research-Article
J. Comput. Nonlinear Dynam. November 2015, 10(6): 061011.
Paper No: CND-14-1135
https://doi.org/10.1115/1.4028417
Published Online: November 1, 2015
View Article titled, The Use of the Adjoint Method for Solving Typical Optimization Problems in Multibody Dynamics
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Topics: Computation, Multibody dynamics, Optimization, Optimal control, Multibody systems, Algorithms, Boundary-value problems, Equations of motion
Journal Articles

Reduction of Physical and Constraint Degrees-of-Freedom of Redundant Formulated Multibody Systems

Daniel Stadlmayr, Wolfgang Witteveen, Wolfgang Steiner
Journal: Journal of Computational and Nonlinear Dynamics
Publisher: ASME
Article Type: Research-Article
J. Comput. Nonlinear Dynam. May 2016, 11(3): 031010.
Paper No: CND-15-1079
https://doi.org/10.1115/1.4031553
Published Online: October 23, 2015
View Article titled, Reduction of Physical and Constraint Degrees-of-Freedom of Redundant Formulated Multibody Systems
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Topics: Degrees of freedom, Multibody systems, Pendulums, Simulation, Modeling
Proceedings Papers

Trajectory Tracking of Underactuated Multibody Systems

Stefan Reichl, Wolfgang Steiner
Proc. ASME. IDETC-CIE2011, Volume 4: 8th International Conference on Multibody Systems, Nonlinear Dynamics, and Control, Parts A and B, 295-304, August 28–31, 2011
Publisher: American Society of Mechanical Engineers
Paper No: DETC2011-47207
https://doi.org/10.1115/DETC2011-47207
View Paper titled, Trajectory Tracking of Underactuated Multibody Systems
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Topics: Multibody systems, Trajectories (Physics), Cranes, Algebra, Algorithms, Degrees of freedom, Design, Dynamics (Mechanics), Equations of motion, Feedforward control
Journal Articles

The Optimal Control Approach to Dynamical Inverse Problems

Wolfgang Steiner, Stefan Reichl
Journal: Journal of Dynamic Systems, Measurement, and Control
Publisher: ASME
Article Type: Research Papers
J. Dyn. Sys., Meas., Control. March 2012, 134(2): 021010.
https://doi.org/10.1115/1.4005365
Published Online: January 3, 2012
View Article titled, The Optimal Control Approach to Dynamical Inverse Problems
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Topics: Equations of motion, Errors, Gantry cranes, Inverse problems, Optimal control, Optimization, Signals, Multibody systems, Trajectories (Physics), Harmonic oscillators