Zobrazeno 1 - 10
of 1 501
pro vyhledávání: '"Low-thrust"'
Publikováno v:
Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, Vol 23, Iss 3, Pp 111-118 (2024)
The article presents preliminary results of the development and research testing of a rocket engine chamber with a thrust of 100 N operating on fuel components: gaseous oxygen-gaseous hydrogen, designed to be used as the main engine of a small upper
Externí odkaz:
https://doaj.org/article/3fb6df435ca14e35a6c1fc129cf4316a
Autor:
Yu. I. Ageenko, A. S. Bubnova
Publikováno v:
Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, Vol 23, Iss 2, Pp 7-13 (2024)
In this paper, various configurations of jet nozzles are analyzed, as well as their design. The effects of the inlet chamfer of jet nozzles on their flow rate and range are considered. It is shown out that today it is expedient to make precision micr
Externí odkaz:
https://doaj.org/article/3239d2cdc0a943e9940d449adcd221c6
Autor:
Iman Shafieenejad
Publikováno v:
فصلنامه علوم و فناوری فضایی, Vol 17, Iss 2, Pp 17-28 (2024)
This research aims to optimize the trajectory of a low-thrust spacecraft carrying biological cargo. The objective is to minimize the radiation exposure from the Van Allen belts, the optimal criterion for the control problem concerning orbital transfe
Externí odkaz:
https://doaj.org/article/c79ff6442deb48dba156969fb69e6847
Autor:
Andrey A. Baranov, Adilson P. Olivio
Publikováno v:
RUDN Journal of Engineering Research, Vol 25, Iss 1, Pp 7-20 (2024)
Presented method allows one to calculate the of maneuvers performed on several turns using a low-thrust engine. These maneuvers ensure the flight of an active spacecraft within a given area of the target space object. The flight is carried out in the
Externí odkaz:
https://doaj.org/article/2c5047864d1d4a9588d3da12809483c2
Publikováno v:
Aerospace, Vol 11, Iss 9, p 766 (2024)
This study focuses on improving the application of the quadratic penalty smoothing technique for solving the fuel-optimal problem of low-thrust trajectory. Some practical techniques, including the Particle Swarm Optimization algorithm (PSO), the co-s
Externí odkaz:
https://doaj.org/article/f6a3d2836cc14dcc8001ecc4b32f3f09
Autor:
V. V. Volotsuev
Publikováno v:
Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, Vol 22, Iss 3, Pp 13-24 (2023)
A digital model is described for estimating the drag force of the Earth's upper atmosphere acting on a low-orbit spacecraft. Unlike the classical model of aerodynamic force, the digital model is the result of a computer algorithm. This algorithm calc
Externí odkaz:
https://doaj.org/article/20b834427bf34baca5fb0fdfa8afc74f
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Publikováno v:
Космические аппараты и технологии, Vol 7, Iss 1, Pp 44-50 (2023)
The article discusses the key role of the use of automation in the stands, as well as the ignition system of the stand of low-thrust engines and the features of its operation as part of the stand. The ignition system scheme was developed, assembled a
Externí odkaz:
https://doaj.org/article/83572f24b9ee49bd8820f61212a1093b
Autor:
Sean Bowerfind, Ehsan Taheri
Publikováno v:
Aerospace, Vol 11, Iss 5, p 380 (2024)
The reachable set of controlled dynamical systems is the set of all reachable states from an initial condition over a certain time horizon, subject to operational constraints and exogenous disturbances. In astrodynamics, rapid approximation of reacha
Externí odkaz:
https://doaj.org/article/a66c4452085f41d9825610ca219c76e7
Publikováno v:
RUDN Journal of Engineering Research, Vol 23, Iss 4, Pp 283-292 (2022)
The authors describe an algorithm that allows calculating the parameters of maneuvers performed on several turns by the low-thrust engine, which ensure the flight of the active spacecraft to the specified vicinity of the target space object. The move
Externí odkaz:
https://doaj.org/article/0e240c2322bf4799be2287ba76ea01c5