Results 81 to 90 of about 906 (226)

On the Potential of Reduced Order Models for Wind Farm Control: A Koopman Dynamic Mode Decomposition Approach

Energies, 2020
The high dimensions and governing non-linear dynamics in wind farm systems make the design of numerical optimal controllers computationally expensive.
Nassir Cassamo, Jan-Willem van Wingerden
doaj   +1 more source

Koopman operator theory: fundamentals, control, and applications

The Koopman operator has gained considerable attention due to its ability to provide a global linear representation of highly complex dynamical systems. The operator describes nonlinear dynamics in a linear way through the lens of real- or complex-valued observable functions.
Mezić, Igor, Cortés, Jorge, Worthmann, Karl, Lazar, Mircea, Lederer, Armin   +4 more
openaire   +2 more sources

A Physics‐Informed Koopman Operator Framework for Decentralized Discrete‐Time Sequential Control of a Modular Aerial Parcel Delivery Robot

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT This paper presents a Physics‐Informed Koopman Operator (PIKO) framework integrated with a discrete‐time Sequential Action Control (SAC) for real‐time, decentralized control of a modular aerial parcel delivery robot composed of multiple independently actuated propeller modules.
Archit Krishna Kamath, Peng Shi, Ramesh K. Agarwal   +2 more
wiley   +1 more source

Learning Hamiltonian neural Koopman operator and simultaneously sustaining and discovering conservation laws

Physical Review Research
Accurately finding and predicting dynamics based on the observational data with noise perturbations is of paramount significance but still a major challenge presently.
Jingdong Zhang, Qunxi Zhu, Wei Lin
doaj   +1 more source

The 2‐D Orthogonal Packing Problem With Multiple Levels of Prioritization: A Spatial Optimization Perspective

Naval Research Logistics (NRL), EarlyView.
ABSTRACT This paper addresses two‐dimensional orthogonal packing within a confined space, integrating bin packing principles with facility layout concepts to address scenarios in which items must not only fit but also be arranged according to spatial priorities.
William K. Kirschenman, H. Sebastian Heese, Michael G. Kay, Russell E. King, Brandon M. McConnell   +4 more
wiley   +1 more source

Modeling, simulation, and control of soft robots using Koopman operator theory

, 2023
In nature, animals with soft body parts can control their parts to different shapes, e.g., an elephant trunk can wrap on a tree branch to pick it up. But most research on manipulators only focuses on how to control the end effector, partly because the arm of the manipulator is rigidly articulated.
Singh, Ajai, author, Chong, Edwin K. P., advisor, Zhao, Jianguo, committee member, Pasricha, Sudeep, committee member   +3 more
openaire   +1 more source

Approximate Reachability for Feedback Linearizable Systems

Optimal Control Applications and Methods, EarlyView.
The backwards reachable set for a dynamical system is the set of states for which there exists a constraint admissible trajectory that reaches a given terminal set. Conventional grid‐based approaches for computing these sets are intractable for many applications.
Vincent Liu, Chris Manzie, Peter M. Dower   +2 more
wiley   +1 more source

On Prigogine's approaches to irreversibility: a case study by the baker map

Discrete Dynamics in Nature and Society, 2004
The baker map is investigated by two different theories of irreversibility by Prigogine and his colleagues, namely, the Λ-transformation and complex spectral theories, and their structures are compared.
S. Tasaki
doaj   +1 more source

Feedback Linearisation with State Constraints

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT Feedback Linearisation (FBL) is a widely used technique that applies feedback laws to transform input‐affine nonlinear control systems into linear control systems, allowing for the use of linear controller design methods such as pole placement.
Songlin Jin, Yuanbo Nie, Morgan Jones
wiley   +1 more source

Collision avoidance maneuver design in cislunar space using Koopman operator theory [PDF]

LAUREA MAGISTRALEL’aumento delle attività spaziali nelle orbite geocentriche ha lasciato una scia di detriti spaziali, rappresentando una crescente minaccia per le missioni spaziali attuali e future.
FIORILLO, SIMONE
core