Numerical Computational Improvement of the Stable-Manifold Method for Nonlinear Optimal Control
Sign Up to like & getrecommendations! Published in 2017 at "IFAC-PapersOnLine"
DOI: 10.1016/j.ifacol.2017.08.777
Abstract: Abstract Two numerical computational techniques are presented for improvement of the stable-manifold method, which is effective for nonlinear optimal control. The first technique is for generation of points on the stable manifold in a robust… read more here.
Keywords: manifold method; method; stable manifold; improvement stable ... See more keywords
Data-Driven Nonlinear Optimal Control for Distributed Parameter Systems with Output Delay
Sign Up to like & getrecommendations! Published in 2018 at "IFAC-PapersOnLine"
DOI: 10.1016/j.ifacol.2018.06.028
Abstract: Abstract This paper presents a predictive nonlinear optimal control method for nonlinear distributed parameter systems with output delay by means of a data-driven modeling method called the dynamic mode decomposition. Nonlinear optimal control problems can… read more here.
Keywords: distributed parameter; parameter systems; output; nonlinear optimal ... See more keywords
State-dependent indirect pseudospectral method for nonlinear optimal control problems.
Sign Up to like & getrecommendations! Published in 2020 at "ISA transactions"
DOI: 10.1016/j.isatra.2020.08.041
Abstract: The state-dependent Riccati equation (SDRE) method is an efficient approach to solve nonlinear optimal control problems (OCPs), but nonlinear necessary conditions for the first-order optimality are seldom met in the SDRE approach. In this paper,… read more here.
Keywords: state; state dependent; method; control problems ... See more keywords
Convex duality in nonlinear optimal transport
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Functional Analysis"
DOI: 10.1016/j.jfa.2019.04.010
Abstract: This article studies problems of optimal transport, by embedding them in a general functional analytic framework of convex optimization. This provides a unified treatment of a large class of related problems in probability theory and… read more here.
Keywords: nonlinear optimal; convex duality; problem; duality nonlinear ... See more keywords
Optimal perturbation for two-dimensional vortex systems: route to non-axisymmetric state
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2018.689
Abstract: We investigate perturbations that maximize the gain of disturbance energy in a two-dimensional isolated vortex and a counter-rotating vortex pair. The optimization is carried out using the method of Lagrange multipliers. For low initial energy… read more here.
Keywords: state; vortex; optimal perturbation; gain ... See more keywords
Early evolution of optimal perturbations in a viscosity-stratified channel
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2020.1160
Abstract: Abstract This work shows how the early stages of perturbation growth in a viscosity-stratified flow are different from those in a constant-viscosity flow, and how nonlinearity is a crucial ingredient. We derive the viscosity-varying adjoint… read more here.
Keywords: viscosity stratified; viscosity; nonlinear optimal; optimal perturbations ... See more keywords
Linear and nonlinear optimal growth mechanisms for generating turbulent bands
Sign Up to like & getrecommendations! Published in 2022 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2022.168
Abstract: Abstract Recently, many authors have investigated the origin and growth of turbulent bands in shear flows, highlighting the role of streaks and their inflectional instability in the process of band generation and sustainment. Recalling that… read more here.
Keywords: energy; optimal growth; turbulent bands; growth ... See more keywords
Nonlinear Optimal Control for the Wheeled Inverted Pendulum System
Sign Up to like & getrecommendations! Published in 2019 at "Robotica"
DOI: 10.1017/s0263574719000456
Abstract: Summary The article proposes a nonlinear optimal control method for the model of the wheeled inverted pendulum (WIP). This is a difficult control and robotics problem due to the system’s strong nonlinearities and due to… read more here.
Keywords: control; optimal control; wheeled inverted; inverted pendulum ... See more keywords
Error Evolutions and Analyses on Joint Effects of SST and SL via Intermediate Coupled Models and Conditional Nonlinear Optimal Perturbation Method
Sign Up to like & getrecommendations! Published in 2023 at "Journal of Marine Science and Engineering"
DOI: 10.3390/jmse11050910
Abstract: A seasonal predictability barrier has long been noticed in ENSO forecasting with numerical models. Previous studies explored the impact of seasonal optimal initial perturbation evolutions in sea surface temperature anomalies (SSTA) on ENSO forecasting using… read more here.
Keywords: optimal perturbation; error; intermediate coupled; conditional nonlinear ... See more keywords
A nonlinear optimal control approach for the UAV and suspended payload system
Sign Up to like & getrecommendations! Published in 2021 at "Cybernetics and Physics"
DOI: 10.35470/2226-4116-2021-10-1-27-39
Abstract: The article proposes a nonlinear optimal control approach for the UAV and suspended load system. The dynamic model of the UAV and payload system undergoes approximate linearization with the use of Taylor series expansion around… read more here.
Keywords: system; control; payload system; nonlinear optimal ... See more keywords