Results 61 to 70 of about 701 (112)

A novel spherical wheel driven by chains with guiding wheels

2009 International Conference on Machine Learning and Cybernetics, 2009
A novel combination of chains with guiding wheel and spherical wheel unit (CWWU1) is presented in this paper, and its operating principle is basically a spherical wheel driven by two perpendicular pairs of chains with a set of guiding wheels. Thus, a CWWU1 base robot similar to the previous CWWU (combination of Omni wheel and spherical wheel unit) can ...
null Chia-Wen Wu, null Kun-Shu Huang, null Chi-Kuang Hwang   +2 more
openaire   +1 more source

Modeling of a spherical robot driven by Omni wheels

2011 International Conference on Machine Learning and Cybernetics, 2011
This paper mainly derives the model of the invented spherical robot using Omni wheels to drive a spherical wheel. The dynamical model is derived based on Euler Lagrange approach. The general form of the robot is also presented. It is noted that the control input of the attitude of robot body originally is the torque exerted by two pairs of Omni wheels ...
Chia-Wen Wu, Zhong-Wei Qiu, Yen-Hsiang Wang, Po-Hsiang Hsu, Chi-Kuang Hwang   +4 more
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A stabilization control of two wheels driven wheelchair

2009 IEEE/RSJ International Conference on Intelligent Robots and Systems, 2009
The paper describes a stabilization control of two wheels driven wheelchair based on pitch angle disturbance observer (PADO). PADO makes it possible to stabilize the wheelchair motion and remove casters. This brings a sophisticated mobility of wheelchair because the casters are obstacle to realize step passage motion and so on.
Akihiro Nakamura, Toshiyuki Murakami
openaire   +1 more source

Motion Planning of Wheeled Mobile Robot Driven by Differential Wheels

Key Engineering Materials, 2008
This paper studies the problem of motion planning of wheeled mobile robot (WMR), which is driven by double wheels separately. It mainly accomplish the motion planning of WMR by taking center of one of double wheels as a base point, and also carry out this problem by traditional method, which takes the midpoint of interval between two wheels as a base ...
Zhong Min Wang, Bing Yan
openaire   +1 more source

Cascade sliding mode control of a spherical wheel robot driven by Omni wheels

2012 International Conference on Machine Learning and Cybernetics, 2012
The target of the paper is a spherical robot using Omni wheels to drive a spherical wheel, and its position control based on the cascade sliding model control (CSMC) has been studied. The structure of the CSMC is cascade combination of states of this dynamic model and a series of sliding surfaces.
Kun-Shu Huang, Yu-Hsiang Lin, Kuo-Bin Lin, Bore-Kuen Lee, Chi-Kuang Hwang   +4 more
openaire   +1 more source

Realization by Biped Leg-wheeled Robot of Biped Walking and Wheel-driven Locomotion

Proceedings of the 2005 IEEE International Conference on Robotics and Automation, 2006
Biped walking is easily adaptable to rough terrain such as stairs and stony paths, but the walk speed and energy efficiency on the flat ground is not so effective compared with wheeled locomotion. In this paper, we propose a biped robot to be able to walk or wheel according to the ground conditions. For wheeled locomotion, WS-2 (Waseda Shoes -No. 2) is
Kenji Hashimoto, Takuya Hosobata, Yusuke Sugahara, Yutaka Mikuriya, Hiroyuki Sunazuka, Masamiki Kawase, Hun-ok Lim, Atsuo Takanishi   +7 more
openaire   +1 more source

Purchaser-Driven Reform: Who Is at the Wheel?

Frontiers of Health Services Management, 1993
Robert E. Hurley's article accomplishes several major objectives in that it prompts one to think past this year and the next about changes that are occurring in our health care system. More important, it makes the point of the inexorable nature of those changes aside from what may occur nationally or locally in terms of legislation.
openaire   +2 more sources

Dynamics of a Wheeled Cart Driven by a Savonius Rotor

Mekhatronika, Avtomatizatsiya, Upravlenie, 2021
Savonius rotor is one of relatively wide-spread type of wind turbines. The rotation rate of this rotor is considerably lower than that of horizontal axis wind turbines and Darrieus wind turbines. However, it starts rotating at small wind speeds, doesn’t require any additional devices to ensure its re-orientation in case of change of the wind direction,
A. P. Holub, A. F. Zubkov, A. A. Masterova, Y. D. Selyutskiy   +3 more
openaire   +1 more source

A nonlinear stability controller for rear wheel driven vehicles

Proceedings of the 41st IEEE Conference on Decision and Control, 2002., 2003
In this paper, we suggest a robust controller which maintains "no-skid" while following a separate control goal. The system description is based on a bicycle model in which the no-slip condition is represented as a set of four non-holonomic constraints and each constraint defines a sliding manifold.
Alessandro Rosiglioni, Sergey V. Drakunov   +1 more
openaire   +1 more source

Pump driven by a water-wheel

1974
It is a machine which raises water about 20 cubits from running water by means of a wheel.
openaire   +1 more source