Results 61 to 70 of about 85,632 (272)

Simple Wriggling is Hard unless You Are a Fat Hippo

open access: yes, 2010
We prove that it is NP-hard to decide whether two points in a polygonal domain with holes can be connected by a wire. This implies that finding any approximation to the shortest path for a long snake amidst polygonal obstacles is NP-hard. On the positive
A. Efrat   +10 more
core   +1 more source

Soft Robotic Snake with Tunable Undulatory Gait for Efficient Underwater Locomotion

open access: yesAdvanced Robotics Research, EarlyView.
This study designs an underwater soft snake robot using 3D‐printed soft actuators, controlled by specific signals to generate sinusoidal undulation. Results show a positive correlation between speed and swing amplitude, with optimal performance at 2/3π phase offset, PLA tail, 1.2 voltage growth rate, and 6s undulation period achieving a maximum speed ...
Huichen Ma, Junjie Zhou, Raye Yeow
wiley   +1 more source

SNAKE-LIKE ROBOT RECTILINEAR MOTION ANALYSIS

open access: yesTECHNICAL SCIENCES AND TECHNOLOGIES, 2019
Urgency of the research. Some animal locomotion mechanisms are often used for robot designing because of their appropriate properties for some kinds of environments. A snake has excellent skeletal structure which provides it advantageous properties for reaching places where other kinds of mechanisms cannot move and operate. Target setting.
openaire   +3 more sources

Project strategy for clean-up of sedimentary radioactive material in Fukushima bay areas using snake-like robotics [PDF]

open access: yesNuclear Technology and Radiation Protection, 2015
The snake-like robot is used for clean-up project in Fukushima nuclear disaster site. The contaminated water at the Fukushima Daiichi nuclear power plants has been purified by the water treatment system, called Advanced Liquid Processing System,
Cho Hyo Sung, Woo Tae Ho
doaj   +1 more source

Dual-Loop Control of Cable-Driven Snake-like Robots

open access: yesRobotics, 2023
Snake-like robots, which have high degrees of freedom and flexibility, can effectively perform an obstacle avoidance motion in a narrow and unstructured space to complete assignments efficiently.
Xiantong Xu   +4 more
doaj   +1 more source

Hard‐Magnetic Soft Millirobots in Underactuated Systems

open access: yesAdvanced Robotics Research, EarlyView.
This review provides a comprehensive overview of hard‐magnetic soft millirobots in underactuated systems. It examines key advances in structural design, physics‐informed modeling, and control strategies, while highlighting the interplay among these domains.
Qiong Wang   +4 more
wiley   +1 more source

Design and analysis of a wire-driven flexible manipulator for bronchoscopic interventions [PDF]

open access: yes, 2016
Bronchoscopic interventions are widely performed for the diagnosis and treatment of lung diseases. However, for most endobronchial devices, the lack of a bendable tip restricts their access ability to get into distal bronchi with complex bifurcations ...
Bergeles, C, Liu, N, Yang, G-Z
core   +2 more sources

3D Printing of Soft Robotic Systems: Advances in Fabrication Strategies and Future Trends

open access: yesAdvanced Robotics Research, EarlyView.
Collectively, this review systematically examines 3D‐printed soft robotics, encompassing material selections, function integration, and manufacturing methodologies. Meanwhile, fabrication strategies are analyzed in order of increasing complexity, highlighting persistent challenges with proposed solutions.
Changjiang Liu   +5 more
wiley   +1 more source

Dynamic Analysis and Path Control of a Snake Like Robot [PDF]

open access: yesInternational Journal of Advanced Design and Manufacturing Technology, 2009
In this paper a modular wheel less snake-like robot by considering viscous friction is modeled. The motion equations of the robot are derived. Then by imitating a real snake motion, the robot is controlled on the way that tracks the predefined trajectory.
Navid Negahbani, Mostafa Ghayour
doaj  

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

open access: yesAdvanced 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   +5 more
wiley   +1 more source

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