Results 201 to 210 of about 63,437 (256)

Non-invasive time-resolved measurements of anomalous collision frequency in a Hall thruster

Physics of Plasmas, 2019
The time-resolved cross-field electron anomalous collision frequency in a Hall thruster is inferred from minimally invasive laser-based measurements.
E. Dale, B. Jorns
semanticscholar   +1 more source

Stationary plasma thruster simulation

Computer Physics Communications, 2004
Abstract A two-dimensional in space and three-dimensional in velocity, fully kinetic particle-in-cell (PIC) model of the atom (Xe), ion (Xe+) and electron dynamics of a stationary plasma thruster is developed. Electron-neutral elastic scattering, excitation and ionization processes are modelled by Monte Carlo collision methodology. The interaction of
FTaccogna, S Longo, MCapitelli, RSchneider   +3 more
openaire   +4 more sources

Performance characterization of a miniature microwave discharge ion thruster operated with water

Acta Astronautica, 2019
Fundamental characteristics of a microwave-discharge miniature ion thruster using water as a propellant, instead of the conventional xenon, are presented in this paper intended for future applications for CubeSats. Water has advantages in terms of safety,
Y. Nakagawa, H. Koizumi, H. Kawahara, K. Komurasaki   +3 more
semanticscholar   +1 more source

Investigation of the vectored thruster AUVs based on 3SPS-S parallel manipulator

Applied Ocean Research, 2019
As an extremely significant tool, autonomous underwater vehicles (AUVs) obtain corresponding development which is widely used in the oceanographic survey, military applications and ocean investigation. However, it is rather hard to fulfill missions about
Tao Liu, Yuli Hu, Hui Xu, Zexu Zhang, Haoquan Li   +4 more
semanticscholar   +1 more source

Adaptive trajectory tracking control for remotely operated vehicles considering thruster dynamics and saturation constraints.

ISA transactions, 2019
This paper discusses the problem of adaptive trajectory tracking control for remotely operated vehicles (ROVs). Considering thruster dynamics, a third-order state space equation is used to describe the dynamic model of ROVs.
Zhenzhong Chu, Xianbo Xiang, Da-qi Zhu, C. Luo, De Xie   +4 more
semanticscholar   +1 more source

Acceleration region dynamics in a magnetically shielded Hall thruster

Physics of Plasmas, 2019
The influence of the cathode flow fraction and facility background pressure on the acceleration region of a magnetically shielded Hall thruster is experimentally characterized.
Sarah E. Cusson, E. Dale, B. Jorns, A. Gallimore   +3 more
semanticscholar   +1 more source

The Antiproton Thruster

2023
In this paper I present a new type of antimatter thruster.
openaire   +2 more sources

Predictive, data-driven model for the anomalous electron collision frequency in a Hall effect thruster

Plasma Sources Science & Technology, 2018
Symbolic regression is applied to find a data-driven model for the anomalous cross-field electron transport in a Hall effect thruster. This model is formulated in terms of an anomalous electron collision frequency that is related to the cross-field ...
B. Jorns
semanticscholar   +1 more source

A Deep Learning Based Data-Driven Thruster Fault Diagnosis Approach for Satellite Attitude Control System

IEEE transactions on industrial electronics (1982. Print), 2021
B. Xiao, Shen Yin
semanticscholar   +1 more source

Plasma simulations in 2-D (r-z) geometry for the assessment of pole erosion in a magnetically shielded Hall thruster

Journal of Applied Physics, 2019
Magnetic shielding of Hall thrusters has been shown to reduce erosion of the channel walls by at least a few orders of magnitude, thereby enabling the use of these devices in deep space missions. Wear tests of magnetically shielded thrusters, such as the
A. Lopez Ortega, I. Mikellides, M. Sekerak, B. Jorns   +3 more
semanticscholar   +1 more source