Results 61 to 70 of about 10,572 (210)

Robust Flight Tether for In-Orbit Demonstrations of Coulomb Drag Propulsion

Aerospace
A new method of producing robust multi-wire tethers for Coulomb drag applications was developed. The multi-wire structure required for redundancy against the micrometeoroid flux of the space environment is realised through the method of wire twist ...
Petri Toivanen, Pekka Janhunen, Jarmo Kivekäs, Meri Mäkelä   +3 more
doaj   +1 more source

From Rigid to Soft Robotic Approaches for Neuroendoscopy

Advanced Robotics Research, EarlyView.
Robotic assistance has had minimal impact on deep intraventricular surgeries, where small‐scale, precision, and reduced invasiveness can contribute to improved patient outcomes. Emerging technologies in rigid, soft, and hybrid robotics are reviewed to identify the most promising mechanisms for deep brain navigation in addition to an attempt to identify
Kieran Gilday, Irena Zubak, Andreas Raabe, Josie Hughes   +3 more
wiley   +1 more source

Current Analysis and Optimal Control of a Spinning Bare Electrodynamic Tether System During its Spin-up Process

Guidance, Navigation and Control
This paper mainly studies the electrical current control of the spinning bare electrodynamic tether system (SBEDT) during its spin-up process. The SBEDT combines the high electrical absorption efficiency of bare tethers and the centrifugal stability of ...
Yizhuo Wang, Aijun Li, Hongshi Lu, Y. M. Zabolotnov, Changqing Wang   +4 more
doaj   +1 more source

Modal and Dynamic Analysis of a Tether for a Nonequatorial Space Elevator

IEEE Access, 2018
To study the fundamental dynamics of the nonequatorial space elevator, a universal modeling strategy is presented, which applies to any anchored latitude. The equations of motion are established on the basis of the lumped mass model of the tether coupled
Zhenkun Wang, Naigang Cui, Youhua Fan, Dun Liu   +3 more
doaj   +1 more source

A Review on Sensor Technologies, Control Approaches, and Emerging Challenges in Soft Robotics

Advanced Robotics Research, EarlyView.
This review provides an introspective of sensors and controllers in soft robotics. Initially describing the current sensing methods, then moving on to the control methods utilized, and finally ending with challenges and future directions in soft robotics focusing on the material innovations, sensor fusion, and embedded intelligence for sensors and ...
Ean Lovett, Maxwell Hammond, Niloufar Seyfi, Amirreza Fahim Golestaneh, Venanzio Cichella, Caterina Lamuta   +5 more
wiley   +1 more source

Soft Actuators Integrated with Control and Power Units: Approaching Wireless Autonomous Soft Robots

Advanced Robotics Research, EarlyView.
Soft robots exhibit significant development potential in various applications. However, there are still key technical challenges regarding material improvement, structure design and components integration. This review focuses on the development and challenge of soft actuators, power components, and control components in untethered intelligent soft ...
Renwu Shi, Feifei Pan, Xiaobin Ji
wiley   +1 more source

Arthropod-Inspired Miniature Modular Vibration Direct-Drive Robot With Untethered Locomotion. [PDF]

Adv Sci (Weinh)
This work presents an arthropod‐inspired untethered miniature modular vibration direct‐drive robot. By utilizing standardized driving units and nested locking interfaces, on‐demand reconfiguration into quadruped, hexapod, octopod, and circular morphologies is achieved.
Zhang S, Liu Z, Liu Y, Wang D, Liu Y.
europepmc   +2 more sources

Multidirectional Motion Strategy of Miniature Water Surface Robot Actuated by Single Exciter

Advanced Robotics Research, EarlyView.
A novel multidirectional motion strategy on the water surface based on a single exciter is proposed, and a single‐exciter single‐plate module is developed for actuation. The driving forces generation mechanism of the module is revealed from the perspective of the asymmetric surface wave field.
Haoxuan He, Dehong Wang, Jing Li, Shijing Zhang, Yingxiang Liu   +4 more
wiley   +1 more source

An Improved Electron Pre-Sheath Model for TSS-1R Current Enhancement Computations

Aerospace, 2017
This report presents improvements of investigations on the Tethered Satellite System (TSS)-1R electron current enhancement due to magnetic limited collections.
Chunpei Cai
doaj   +1 more source

Multimodal Locomotion in Insect‐Inspired Microrobots: A Review of Strategies for Aerial, Surface, Aquatic, and Interfacial Motion

Advanced Robotics Research, EarlyView.
This review identifies key design considerations for insect‐inspired microrobots capable of multimodal locomotion. To draw inspiration, biological and robotic strategies for moving in air, on water surfaces, and underwater are examined, along with approaches for crossing the air–water interface.
Mija Jovchevska, Kaushik Jayaram, Nicole Xu   +2 more
wiley   +1 more source