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Toshimi Shimizu  - - - 
Top co-authors
Minoru Sasaki

90 shared publications

Gifu University

Publication Record
Distribution of Articles published per year 
(2001 - 2012)
Total number of journals
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Publications See all
Article 0 Reads 0 Citations Self-Tuning Vibration Control of a Rotational Flexible Timoshenko Arm Using Neural Networks Minoru Sasaki, Toshimi Shimizu, Yoshihiro Inoue, Wayne J. Bo... Published: 01 January 2012
Advances in Acoustics and Vibration, doi: 10.1155/2012/852780
DOI See at publisher website ABS Show/hide abstract
A self-tuning vibration control of a rotational flexible arm using neural networks is presented. To the self-tuning control system, the control scheme consists of gain tuning neural networks and a variable-gain feedback controller. The neural networks are trained so as to make the root moment zero. In the process, the neural networks learn the optimal gain of the feedback controller. The feedback controller is designed based on Lyapunov's direct method. The feedback control of the vibration of the flexible system is derived by considering the time rate of change of the total energy of the system. This approach has the advantage over the conventional methods in the respect that it allows one to deal directly with the system's partial differential equations without resorting to approximations. Numerical and experimental results for the vibration control of a rotational flexible arm are discussed. It verifies that the proposed control system is effective at controlling flexible dynamical systems.
Article 0 Reads 0 Citations Passivity based control for a magnetically levitated flexible beam with rate estimation via the extended Kalman filterin... Toshimi Shimizu, Minoru Sasaki, Tokuji Okada Published: 31 May 2011
International Journal of Applied Electromagnetics and Mechanics, doi: 10.3233/jae-2011-1352
DOI See at publisher website
Article 0 Reads 1 Citation Trajectory estimation of a skid-steering mobile robot propelled by independently driven wheels Tokuji Okada, Abeer Mahmoud, Wagner Tanaka Botelho, Toshimi ... Published: 06 May 2011
Robotica, doi: 10.1017/s026357471100035x
DOI See at publisher website
Article 0 Reads 0 Citations Software and Hardware control of a hybrid robot for switching between leg-type and wheel-type modes Wagner Tanaka Botelho, Tokuji Okada, Abeer Mahmoud, Toshimi ... Published: 01 February 2011
Sba: Controle & Automação Sociedade Brasileira de Automatica, doi: 10.1590/s0103-17592011000100002
DOI See at publisher website ABS Show/hide abstract
One of the objectives of the paper is to describe the hybrid robot PEOPLER-II (Perpendicularly Oriented Planetary Legged Robot) with regard to switching between leg-type and wheel-type. Our robot has an easier design and control system than other hybrid robots. The software and hardware control in the process of performing five robot tasks are considered. These are the walking, rolling, switching, turning and spinning. In the switching task, we show the control method based on minimization of total energycost. Also, the hardware components and their interconnections are described. The graphical user interfaces utilized in the simulation and experiment are demonstrated. The walking, rolling and the switching without reverse rotation and arm motion are verified in simulation and with real robot, in addition to turning and spinning.
Article 0 Reads 0 Citations Driving Mechanism of a Legged and Wheeled Mobile Robot with Minimal DOFs and Control for Reversible Switching between Wa... Tokuji Okada, Wagner Tanaka Botelho, Toshimi Shimizu Published: 01 January 2011
Journal of the Robotics Society of Japan, doi: 10.7210/jrsj.29.306
DOI See at publisher website
Article 0 Reads 0 Citations 1A1-E18 Modeling and Motion control of a Flexible Manipulator Using a Formula Manipulation Minoru Sasaki, Hiroyuki Shimasaki, Satoshi Itou, Toshimi Shi... Published: 01 January 2010
The Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec), doi: 10.1299/jsmermd.2010._1A1-E18_1
DOI See at publisher website