Results 51 to 60 of about 63,437 (256)

Direct thrust measurements of 2U-sized bi-directional wave plasma thruster

AIP Advances, 2023
The results of direct thrust measurements of the thruster with multiple thrust vectoring capability utilizing Kr are presented. The thruster is a 2U size system.
Andrei I. Shumeiko, Victor D. Telekh
doaj   +1 more source

A strategy to characterize the LISA-Pathfinder cold gas thruster system [PDF]

, 2015
The cold gas micro-propulsion system that will be used during the LISA-Pathfinder mission will be one of the most important component used to ensure the "free-fall" of the enclosed test masses. In this paper we present a possible strategy to characterize
Armano, M., Audley, H., Auger, G., Baird, J., Binetruy, P., Born, M., Bortoluzzi, D., Brandt, N., Bursi, A., Caleno, M., Cavalleri, A., Cesarini, A., Cruise, M., Cutler, C., Danzmann, K., Diepholz, I., Dolesi, R., Dunbar, N., Ferraioli, L., Ferroni, V., Fitzsimons, E., Freschi, M., Gallegos, J., Gerndt, R., Gesa, L., Giardini, D., Gibert, F., Giusteri, R., Grimani, C., Harrison, I., Heinzel, G., Hewitson, M., Hollington, D., Hueller, M., Huesler, J., Inchauspe, H., Jennrich, O., Jetzer, P., Johlander, B., Karnesis, N., Kaune, B., Killow, C., Korsakova, N., Lloro, I., Maarschalkerweerd, R., Madden, S., Maghami, P., Mance, D., Marirrodriga, C., Martin, V., Martin-Porqueras, F., Mateos, I., McNamara, P., Mendes, J., Mendes, L., Moroni, A., Nofrarias, M., Paczkowski, S., Perez, J., Perreur-Lloyd, M., Petiteau, A., Pivato, P., Plagnol, E., Prat, P., Ragnit, U., Ramos-Castro, J., Reiche, J., Robertson, D., Rozemeijer, H., Russano, G., Sarra, P., Schleicher, A., Slutsky, J., Sopuerta, C., Sumner, T., Texier, D., Thorpe, J., Trenkel, C., Tu, H., Vetrugno, D., Vitale, S., Wanner, G., Ward, H., Waschke, S., Wass, P., Wealthy, D., Weber, W., Wen, S., Wittchen, A., Zanoni, C., Ziegler, T., Zweifel, P.   +91 more
core   +1 more source

Study on the Improvement of Theoretical and Electric Field Simulation Methods for the Accurate Prediction of FEEP Thruster Performance

Aerospace
In this study, we investigate and propose an improved theoretical method to more accurately predict the performance of a field-emission electric propulsion (FEEP) thruster with its complex configuration.
Jeongsik Shin, Kyun Ho Lee, Jungwon Kuk, Han Seo Ko   +3 more
doaj   +1 more source

Fault Tolerant Control of Satellite Orbital Maneuvering Based on Virtual Actuator [PDF]

علوم، فناوری و کاربردهای فضایی
In this article, a fault tolerant control based on a virtual actuator is used for the maneuvering of low earth orbit satellites that are subject to the loss of the effectiveness and additive actuator faults as well as natural disturbances such as ...
Masoud Dehnad, Morteza Farhid, Samira Mazhari Anvar   +2 more
doaj   +1 more source

Enhancement for magnetic field strength of a magnetohydrodynamic thruster consisting of permanent magnets

AIP Advances, 2021
This study designs a closed-loop magnetic circuit using permeable materials to increase the uniformity and intensity of the magnetic field based on an internal conductive square Magnetohydrodynamics (MHD) thruster that consists of a pair of NdFeB magnets.
Yan-Hom Li, Cing-Hui Zeng, Yen-Ju Chen
doaj   +1 more source

Performance Evaluation of Ammonium Dinitramide-Based Monopropellant in a 1N Thruster

Aerospace
The development of propulsion systems based on green propellants, as an alternative to hydrazines, has been gaining interest within the space community.
Wonjae Yoon, Vikas Khandu Bhosale, Hosung Yoon   +2 more
doaj   +1 more source

Liquid micro pulsed plasma thruster

Nukleonika, 2015
A new type of pulsed plasma thruster (PPT) for small satellite propulsion is investigated, of which the most innovative aspect is the use of a non-volatile liquid propellant. The thruster is based on an open capillary design.
Szelecka Agnieszka, Kurzyna Jacek, Daniłko Dariusz, Barral Serge   +3 more
doaj   +1 more source

Investigating the neutralizer cathode location in the SPT type Hall Effect thruster [PDF]

علوم، فناوری و کاربردهای فضایی
The position of the cathode concerning the magnetic field map inside the discharge channel affects the performance and lifetime of the Hall effect thruster. The neutralizer cathode has two important functions in the Hall effect thruster.
mohammadmehdi shafie, Morteza Farhid, Masumeh Kiantaj, Samira Mir mazhari, Leili mahmoudi   +4 more
doaj   +1 more source

Modelling and Simulation of Variable Speed Thruster Drives with Full-Scale Verification [PDF]

Modeling, Identification and Control, 2001
In this paper considerations about modelling and simulation of variable speed thruster drives are made with comparison to full scale measurements from Varg FPSO.
Jan F. Hansen, Trygve Lauvdal, Alf K. Ådnanes   +2 more
doaj   +1 more source

Local optimization of thruster configuration based on a synthesized positioning capability criterion

International Journal of Naval Architecture and Ocean Engineering, 2015
DPCap analysis can assist in determining the maximum environmental forces the DP system can counteract for a given heading. DPCap analysis results are highly affected by the thrust forces provided by the thrust system which consists of several kinds of ...
Shengwen Xu, Lei Wang, Xuefeng Wang
doaj   +1 more source