4 papers
Parallel-in-Time Nonlinear Optimal Control via GPU-native Sequential Convex Programming
Yilin Zou, Zhong Zhang, Maxime Robic +1
Real-time solution of nonlinear optimal control problems remains challenging on embedded robotic hardware, where conventional solvers often rely on global sparse linear algebra or…
Neural Approximators for Low-Thrust Trajectory Transfer Cost and Reachability
Zhong Zhang, Francesco Topputo
In trajectory design, fuel consumption and trajectory reachability are two key performance indicators for low-thrust missions. This paper proposes general-purpose pretrained neural…
Global Optimality in Multi-Flyby Asteroid Trajectory Optimization: Theory and Application Techniques
Zhong Zhang, Xiang Guo, Di Wu +3
Designing optimal trajectories for multi-flyby asteroid missions is scientifically critical but technically challenging due to nonlinear dynamics, intermediate constraints, and num…
Optimal Control and Neural Porkchop Analysis for Low-Thrust Asteroid Rendezvous Mission
Zhong Zhang, Niccolò Michelotti, Gonçalo Oliveira Pinho +2
This paper presents a comparative study of the applicability and accuracy of optimal control methods and neural network-based estimators in the context of porkchop plots for prelim…