[HTML][HTML] Spherical robots for special purposes: a review on current possibilities

M Bujňák, R Pirník, K Rástočný, A Janota, D Nemec… - Sensors, 2022‏ - mdpi.com
The review discusses the possibilities of different driving mechanisms and sensors of
spherical robots, and a special kind of mobile robots is introduced and discussed. The …

A wheeled robot driven by a liquid‐metal droplet

J Wu, SY Tang, T Fang, W Li, X Li… - Advanced materials, 2018‏ - Wiley Online Library
The controlled actuation of gallium liquid‐metal (LM) alloys has presented new and exciting
opportunities for constructing mobile robots with structural flexibility. However, the …

Adaptive neuro-fuzzy control of a spherical rolling robot using sliding-mode-control-theory-based online learning algorithm

E Kayacan, E Kayacan, H Ramon… - IEEE transactions on …, 2012‏ - ieeexplore.ieee.org
As a model is only an abstraction of the real system, unmodeled dynamics, parameter
variations, and disturbances can result in poor performance of a conventional controller …

Modeling and control of a spherical rolling robot: a decoupled dynamics approach

E Kayacan, ZY Bayraktaroglu, W Saeys - Robotica, 2012‏ - cambridge.org
This paper presents the results of a study on the dynamical modeling, analysis, and control
of a spherical rolling robot. The rolling mechanism consists of a 2-DOF pendulum located …

Spherical mobile robot with pivoting head

M Ellerman, C Hardouin - US Patent 10,399,616, 2019‏ - Google Patents
A mobile, spherical robot includes a spheroid shell, an internal assembly secured to the
shell, and a head disposed atop the shell. The internal assembly is disposed within the shell …

Design and implementation of a ball-driven omnidirectional spherical robot

WH Chen, CP Chen, JS Tsai, J Yang, PC Lin - Mechanism and Machine …, 2013‏ - Elsevier
We designed and implemented a novel omnidirectional spherical robot. Instead of using
wheels or flywheels, a driven ball is installed inside the spherical shell and driven by two …

Fuzzy PID controller based on yaw angle prediction of a spherical robot

Y Wang, X Guan, T Hu, Z Zhang… - 2021 IEEE/RSJ …, 2021‏ - ieeexplore.ieee.org
In this paper, a fuzzy PID controller based on yaw angle prediction is applied to design an
attitude controller for a spherical rolling robot. The robot consists of a 2-DOF pendulum …

Design and locomotion analysis of a novel modular rolling robot

X Wei, Y Tian, S Wen - Mechanism and Machine Theory, 2019‏ - Elsevier
This paper proposes a novel morphological modular robot that is capable of switching
multiple directions and rolling locomotion. The mechanism of the robot resembles a …

A motion planning strategy for a spherical rolling robot driven by two internal rotors

A Morinaga, M Svinin… - IEEE Transactions on …, 2014‏ - ieeexplore.ieee.org
This paper deals with a motion planning problem for a spherical rolling robot actuated by
two internal rotors that are placed on orthogonal axes. The key feature of the problem is that …

Position and attitude control of a spherical rolling robot equipped with a gyro

T Otani, T Urakubo, S Maekawa… - 9th IEEE International …, 2006‏ - ieeexplore.ieee.org
This paper deals with the problem of controlling the position and attitude of a spherical
rolling robot. The driving torque for the rolling robot is generated by a new type of …