Results 31 to 40 of about 183,110 (169)
Global optimal control with the direct multiple shooting method
Optimal Control Applications and Methods, 2017 SummaryWe propose to solve global optimal control problems with a new algorithm that is based on Bock's direct multiple shooting method. We provide conditions and numerical evidence for a significant overall runtime reduction compared to the standard single shooting approach.
H. Diedam, S. Sager
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Mathematical Modelling, Simulation, and Optimal Control of the 2014 Ebola Outbreak in West Africa
Discrete Dynamics in Nature and Society, 2015 The Ebola virus is currently one of the most virulent pathogens for humans. The latest major outbreak occurred in Guinea, Sierra Leone, and Liberia in 2014. With the aim of understanding the spread of infection in the affected countries, it is crucial to
Amira Rachah, Delfim F. M. Torres
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A Crane Overload Protection Controller for Blade Lifting Operation Based on Model Predictive Control
Energies, 2018 Lifting is a frequently used offshore operation. In this paper, a nonlinear model predictive control (NMPC) scheme is proposed to overcome the sudden peak tension and snap loads in the lifting wires caused by lifting speed changes in a wind turbine blade
Zhengru Ren, Roger Skjetne, Zhen Gao
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Low-Thrust Lyapunov to Lyapunov and Halo to Halo with $L^2$-Minimization [PDF]
, 2016 In this work, we develop a new method to design energy minimum low-thrust missions (L2-minimization). In the Circular Restricted Three Body Problem, the knowledge of invariant manifolds helps us initialize an indirect method solving a transfer mission ...
Chupin, Maxime +2 more
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Direct optimal control for time-delay systems via a lifted multiple shooting algorithm
Journal of Industrial and Management Optimization, 2022 <p style='text-indent:20px;'>Aiming at efficient solution of optimal control problems for continuous nonlinear time-delay systems, a multiple shooting algorithm with a lifted continuous Runge-Kutta integrator is proposed. This integrator is in implicit form to remove the restriction of smaller integration step sizes compared with delays.
Jiang, Canghua +3 more
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On the smoothness of nonlinear system identification
, 2020 We shed new light on the \textit{smoothness} of optimization problems arising in prediction error parameter estimation of linear and nonlinear systems.
Aguirre, Luis A. +4 more
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Applied Sciences, 2018 Bipedal locomotion remains one of the major open challenges of humanoid robotics. The common approaches are based on simple reduced model dynamics to generate walking trajectories, often neglecting the whole-body dynamics of the robots.
Yue Hu, Katja Mombaur
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Fast Direct Multiple Shooting Algorithms for Optimal Robot Control [PDF]
, 2007 In this overview paper, we first survey numerical approaches to solve nonlinear optimal control problems, and second, we present our most recent algorithmic developments for real-time optimization in nonlinear model predictive control. In the survey part, we discuss three direct optimal control approaches in detail: (i) single shooting, (ii) collocation,
Diehl, Moritz +3 more
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Xibei Gongye Daxue Xuebao, 2019 This paper studies helicopter optimal landing and control procedure after tail rotor control failure (TRCF) in different collective pitch. The optimal control problem of landing after tail rotor control failure was solved numerically by direct multiple ...
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Ascent trajectory optimisation for a single-stage-to-orbit vehicle with hybrid propulsion [PDF]
, 2012 This paper addresses the design of ascent trajectories for a hybrid-engine, high performance, unmanned, single-stage-to-orbit vehicle for payload deployment into low Earth orbit. A hybrid optimisation technique that couples a population-based, stochastic
Brown, Richard +4 more
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