Mainardi smoothing homotopy method for solving nonlinear optimal control problems

W Qing, B Pan, Y Ran, C Zhu - Acta Astronautica, 2024 - Elsevier
This paper proposes a new type of smoothing homotopy method for solving general
nonlinear optimal control problems via the indirect method, leveraging the Mainardi kernel …

Indirect optimization of fuel-optimal many-revolution low-thrust transfers with eclipses

Y Wang, F Topputo - IEEE Transactions on Aerospace and …, 2022 - ieeexplore.ieee.org
An efficient indirect method is presented to determine fuel-optimal many-revolution low-
thrust transfers in the presence of Earth-shadow eclipses. Specifically, the events of shadow …

Theory of functional connections applied to quadratic and nonlinear programming under equality constraints

T Mai, D Mortari - Journal of Computational and Applied Mathematics, 2022 - Elsevier
This paper introduces an efficient approach to solve quadratic and nonlinear programming
problems subject to linear equality constraints via the theory of functional connections. This …

Low-energy Earth–Moon transfers via Theory of Functional Connections and homotopy

CT Campana, G Merisio, F Topputo - Celestial Mechanics and Dynamical …, 2024 - Springer
Numerous missions leverage the weak stability boundary in the Earth–Moon–Sun system to
achieve a safe and cost-effective access to the lunar environment. These transfers are …

Analysis of nonlinear Timoshenko–Ehrenfest beam problems with von Kármán nonlinearity using the Theory of Functional Connections

C Yassopoulos, JN Reddy, D Mortari - Mathematics and Computers in …, 2023 - Elsevier
In this paper, the Theory of Functional Connections (TFC) is used to analyze static beams,
accounting for the von Kármán nonlinearity and using the Timoshenko–Ehrenfest beam …

Theory of functional connections extended to fractional operators

D Mortari, R Garrappa, L Nicolò - Mathematics, 2023 - mdpi.com
The theory of functional connections, an analytical framework generalizing interpolation,
was extended and applied in the context of fractional-order operators (integrals and …

Spectral shifted stabilized continuation for indirect optimal control

M Vedantam, MR Akella - Journal of Guidance, Control, and Dynamics, 2024 - arc.aiaa.org
Continuation methods provide a solution to the initial guess problem that numerical root
solvers and shooting methods often face by iteratively transforming an auxiliary solution into …

[HTML][HTML] Using the theory of functional connections to solve boundary value geodesic problems

D Mortari - Mathematical and Computational Applications, 2022 - mdpi.com
This study provides a least-squares-based numerical approach to estimate the boundary
value geodesic trajectory and associated parametric velocity on curved surfaces. The …