Results 11 to 20 of about 295,166 (297)

Research of design of a small spacecraft with an electrothermal propulsion system [PDF]

open access: yesОмский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2022
The paper presents the results of solving the multivariate problem of forming the design of a small spacecraft with various propulsion systems based on freons with electrothermal thrusters.
P. S. Yachmenev
doaj   +1 more source

Application of electric thrusters in a spacecraft propulsion system [PDF]

open access: yesКосмические аппараты и технологии, 2022
The place of electric rocket thrusters in a spacecraft propulsion system is pointed out; the tasks for such propulsion system are described. The modern classification of electric thrusters is given, in accordance of that one there are four classes ...
N. E. Kovalenko, A. A. Vnukov
doaj   +1 more source

Physics and instabilities of low-temperature E × B plasmas for spacecraft propulsion and other applications

open access: yesPhysics of Plasmas, 2023
Low-temperature E×B plasmas are used in various applications, such as Hall thrusters for satellite propulsion, ion sources and magnetron discharges for plasma processing, and negative ion sources for neutral beam injection in fusion. The plasmas in these
J. Boeuf, A. Smolyakov
semanticscholar   +1 more source

Anomaly Detection in Spacecraft Propulsion System using Time Series Classification based on K-NN

open access: yesPHM Society Asia-Pacific Conference, 2023
In this paper, we propose an anomaly detection method developed by the team called “Team Tsubasa” in the PHMAP2023 Data Challenge. This is an anomaly detection competition for spacecraft propulsion systems (PHM Society, 2023).
Yoshiki Kato, Taku Kato, Tsubasa Tanaka
semanticscholar   +1 more source

Dataset Generation Based on 1D-CAE Modeling for Fault Diagnostics in a Spacecraft Propulsion System

open access: yesPHM Society Asia-Pacific Conference, 2023
The objective of this study is to generate a classified dataset of valve faults and bubble contamination anomalies in the propellant supply pipe of spacecraft propulsion systems.
Kohji Tominaga   +6 more
semanticscholar   +1 more source

Hybrid Approach of XGBoost and Rule-based Model for Fault Detection and Severity Estimation in Spacecraft Propulsion System

open access: yesPHM Society Asia-Pacific Conference, 2023
This study presents a method for fault detection and severity estimation of the spacecraft propulsion system. The spacecraft propulsion system is complicated, consisting of many valves, and operates in a harsh environment.
Sang Kyung Lee   +6 more
semanticscholar   +1 more source

Electrodynamic tethers for spacecraft propulsion [PDF]

open access: yes36th AIAA Aerospace Sciences Meeting and Exhibit, 1998
Relatively short electrodynamic tethers can use solar power to "push" against a planetary magnetic field to achieve propul sion without expenditure of propellant. The groundwork has been laid for this type of propulsion. Recent important milestones include retrieval of a tether in space (TSS-1, 1992), successful deployment of a 20-km-long tether in ...
JOHNSON L   +5 more
openaire   +3 more sources

Propulsion of Spacecraft to Relativistic Speeds Using Natural Astrophysical Sources [PDF]

open access: yesAstrophysical Journal, 2020
In this paper, we explore from a conceptual standpoint the possibility of using natural astrophysical sources to accelerate spacecraft to relativistic speeds. We focus on light sails and electric sails, which are reliant on momentum transfer from photons
M. Lingam, A. Loeb
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy