Results 21 to 30 of about 46,546 (260)

Task Planning of Space-Robot Clusters Based on Modified Differential Evolution Algorithm

open access: yesApplied Sciences, 2020
This study studies the problem of on-orbit maintenance task planning for space-robot clusters. Aiming at the problem of low maintenance efficiency of space-robot cluster task-planning, this study proposes a cluster-task-planning method based on energy ...
Pengfei Xiao   +3 more
doaj   +1 more source

An Innovate Detumbling Method for a Non-Cooperative Space Target via Repeated Tentative Contacts

open access: yesIEEE Access, 2022
On-orbit removing tumbling targets is a critical research issue for future space missions. Repeated tentative contacts by the robot can be used to eliminate the rotational motion of a tumbling target.
Dejia Che, Zixuan Zheng, Jianping Yuan
doaj   +1 more source

Terrain Adaptability Mechanism of Large Ruminants’ Feet on the Kinematics View

open access: yesApplied Bionics and Biomechanics, 2015
Ruminants live in various parts of land. Similar cloven hooves assist ruminants in adapting to different ground environment during locomotion. This paper analyzes the general terrain adaptability of the feet of ruminants using kinematics of the ...
Qun Zhang, Xilun Ding, Kun Xu
doaj   +1 more source

Design and Simulation of On-Orbit Assembly System Based on Insect-Inspired Transportation

open access: yesBiomimetics, 2023
In response to the requirements of large-scale space in-orbit assembly and the special environment of low gravity in space, this paper proposes a small robot structure with the integration of assembly, connection, and vibration reduction functionalities.
Yuetian Shi   +5 more
doaj   +1 more source

Design and Operational Elements of the Robotic Subsystem for the e.deorbit Debris Removal Mission

open access: yesFrontiers in Robotics and AI, 2018
This paper presents a robotic capture concept that was developed as part of the e.deorbit study by ESA. The defective and tumbling satellite ENVISAT was chosen as a potential target to be captured, stabilized, and subsequently de-orbited in a controlled ...
Steffen Jaekel   +17 more
doaj   +1 more source

Multi-Objective PSO with Variable Number of Dimensions for Space Robot Path Optimization

open access: yesAlgorithms, 2023
This paper aims to solve the space robot pathfinding problem, formulated as a multi-objective (MO) optimization problem with a variable number of dimensions (VND).
Petr Kadlec
doaj   +1 more source

Vision-based navigation and guidance for small Mars UAVs

open access: yesNihon Kikai Gakkai ronbunshu, 2014
Mars airplane is one of the candidate payloads of JAXA's next Mars exploration program. Airborne observation of Mars is expected to fill the “gap” between rovers, which provides a detailed observation but a limited area of coverage, and orbiters ...
Kentaro ARAI   +3 more
doaj   +1 more source

Modeling and Analysis of a Multi-Degree-of-Freedom Micro-Vibration Simulator

open access: yesShock and Vibration, 2017
To reproduce the disturbance forces and moments generated by the reaction/momentum wheel assembly, a multi-degree-of-freedom micro-vibration simulator is proposed.
Xiaoming Wang   +6 more
doaj   +1 more source

Estimation of systematic errors in the results of navigational measurements with the use of spacecraft robot onboard facilities

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2018
The article presents the results of an analytical study of the accuracy of estimating systematic optical errors of onboard navigation measurements that, along with the vector characterizing the motion of the center of mass of the space robot, are ...
A. D. Golyakov, A. M. Richnyak
doaj   +1 more source

One Soft Step: Bio-Inspired Artificial Muscle Mechanisms for Space Applications

open access: yesFrontiers in Robotics and AI, 2022
Soft robots, devices with deformable bodies and powered by soft actuators, may fill a hitherto unexplored niche in outer space. All space-bound payloads are heavily limited in terms of mass and volume, due to the cost of launch and the size of spacecraft.
Joseph Ashby   +8 more
doaj   +1 more source

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