Results 21 to 30 of about 31,208 (318)
Robotic Manipulation and Capture in Space: A Survey
Frontiers in Robotics and AI, 2021 Space exploration and exploitation depend on the development of on-orbit robotic capabilities for tasks such as servicing of satellites, removing of orbital debris, or construction and maintenance of orbital assets. Manipulation and capture of objects on-
Evangelos Papadopoulos +3 more
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Rarefied gas effects on the aerodynamics of high area-to-mass ratio spacecraft in orbit [PDF]
, 2013 The aerodynamic situation of a satellite-on-a-chip operating in low Earth orbit bears some resemblance to a classical Crookes radiometer. The large area-to-mass ratio characteristic of a SpaceChip means that very small surface-dependent forces produce ...
Reese, Jason M. +7 more
core +1 more source
Zero Average Surface Controlled Boost-Flyback Converter
Energies, 2020 The boost-flyback converter is a DC-DC step-up power converter with a wide range of technological applications. In this paper, we analyze the boost-flyback dynamics when controlled via a modified Zero-Average-Dynamics control technique, hereby named Zero-
Juan-Guillermo Muñoz +2 more
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Robotic On-Orbit Servicing - DLR's Experience and Perspective. [PDF]
, 2006 The increasing number of launched satellites per year, calls for solutions to keep free operational space for telecommunication systems in geo-synchronized orbit, as well as to avoid the endangering of space systems in LEO (Low-Earth Orbit) and of the ...
Landzettel, Klaus +11 more
core +1 more source
Solving Coplanar Power-Limited Orbit Transfer Problem by Primer Vector Approximation Method
International Journal of Aerospace Engineering, 2012 The coplanar orbit transfer problem has been an important topic in astrodynamics since the beginning of the space era. Though many approximate solutions for power-limited orbit transfer problem have been developed, most of them rely on simplifications of
Weijun Huang
doaj +1 more source
Key Technologies and Engineering Practices for On-Orbit Dynamics of Large and Complex Spacecraft [PDF]
中国工程科学With the deepening implementation of major aerospace projects, large and complex spacecraft are evolving toward larger scales, higher performance, and multi-payload integration, leading to increasingly complex on-orbit dynamics issues. This study focuses
Yujun Chen +8 more
doaj +1 more source
Orbit Decomposition Method for Rotordynamic Coefficients Identification of Annular Seals
Applied Sciences, 2021 The elliptical orbit whirl model is widely used to identify the frequency-dependent rotordynamic coefficients of annular seals. The existing solution technique of an elliptical orbit whirl model is the transient computational fluid dynamics (CFD) method.
Mingjie Zhang +3 more
doaj +1 more source
Bulk plasma properties at geosynchronous orbit. [PDF]
, 2005 We present a comprehensive study of plasma properties at geosynchronous orbit for electron and ion energies between ∼1 eV and ∼45 keV, between 1990 and 2001.
Liemohn, M. W. +6 more
core +1 more source
On-orbit assembly using superquadric potential fields [PDF]
, 2008 The autonomous on-orbit assembly of a large space structure is presented using a method based on superquadric artificial potential fields. The final configuration of the elements which form the structure is represented as the minimum of some attractive ...
Ahmed Badawy +4 more
core +1 more source
The catalogue of cometary orbits and their dynamical evolution [PDF]
Astronomy & Astrophysics, 2020 We present the CODE catalogue, the new cometary catalogue containing data for almost 300 long-period comets that were discovered before 2018. This is the first catalogue containing cometary orbits in the five stages of their dynamical evolution and covering three successive passages through the perihelion, with the exception of the hyperbolic comets ...
Małgorzata Królikowska +1 more
openaire +2 more sources