Results 11 to 20 of about 86,122 (316)
Novel Pointing and Stabilizing Manipulator for Optical Space Payloads
Applied Sciences, 2023 Considering that the Line-Of-Sight (LOS) of a small optical payload is mainly connected with the angular motions while insensitive to linear motion, a novel pointing and stabilizing manipulator was proposed for small payloads on a large spacecraft.
Hui Zhang +3 more
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Obstacle Avoidance in a Three-Dimensional Dynamic Environment Based on Fuzzy Dynamic Windows
Applied Sciences, 2021 This paper presents a real-time path planning approach for controlling the motion of space-based robots. The algorithm can plan three-dimensional trajectories for agents in a complex environment which includes numerous static and dynamic obstacles, path ...
Ce Xu, Zhenbang Xu, Mingyi Xia
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Frobenius Manifolds on Orbits Spaces
Mathematical Physics, Analysis and Geometry, 2022 The orbits space of an irreducible linear representation of a finite group is a variety whose coordinate ring is the ring of invariant polynomials. Boris Dubrovin proved that the orbits space of the standard reflection representation of an irreducible finite Coxeter group $\mathcal W$ acquires a natural polynomial Frobenius manifold structure. We apply
Zainab Al-Maamari, Yassir Dinar
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Design and Dynamic Control: A Free-Flying Space Robot Inspired by Water Striders
Biomimetics, 2023 This work designed a free-flying space robot (FFSR) that simulates the on-orbit assembly of large space telescopes, drawing inspiration from the flexible movement of water striders on water surfaces.
Huayang Sai +3 more
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Finitistic Spaces with Orbit Space a Product of Projective Spaces
, 2023 Let G = Z2 act freely on a nitistic space X. If the mod 2 cohomology of X is isomorphic to the real projective space RP^{2n+1} (resp. complex projective space CP^{2n+1}) then the mod 2 cohomology of orbit spaces of these free actions are RP1 x CPn (resp. RP2 x HPn) [7]. In this paper, we have discussed converse of these results. We have showed that if
Kumari, Anju, Singh, Hemant Kumar
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Applied Sciences, 2020 Aiming at on-orbit automatic assembly, an improved uncalibrated visual servo strategy for hyper-redundant manipulators based on projective homography is proposed.
Jinlin Gu +5 more
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On the Projective Cover of an orbit space [PDF]
Journal of the Australian Mathematical Society. Series A. Pure Mathematics and Statistics, 1989 AbstractIn this paper, we obtain the projective cover of the orbit space X/G in terms of the orbit space of the projective space of X, when X is a Tychonoff G-space and G is a finite discrete group. An example shows that finiteness of G is needed.
Azad, K. K., Agrawal, Gunjan
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Modification technique for a space manipulator Joint's thermal model parameters
Case Studies in Thermal Engineering, 2023 This study takes into account the multi-point thermal model's automatic adjustment mechanism. The combined heat balance test temperature is used as the genetic algorithm's optimization target value. To minimize time and resources when running simulations,
Min Zhang +4 more
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On Orbit Spaces of Distributive Binary $$G$$-Spaces
Mathematical Notes, 2022 The orbit space of a distributive binary $G$-space is studied. A number of its properties in the case of a compact binarily acting group $G$ are established.
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Results in Mathematics, 2003 11 pages, 1 ...
A'Campo-Neuen, Annette, Hausen, Jürgen
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