Updated on 2022/09/22

写真a

 
SHIMOOKA So
 
Organization
Faculty of Natural Science and Technology Assistant Professor
Position
Assistant Professor
External link

Degree

  • 博士(工学) ( 2020.3   岡山理科大学 )

  • D.Eng. ( 2020.3   Okayama University of Science )

  • M.Eng. ( 2016.3   Okayama University of Science )

Research Interests

  • Mechatronics

  • ソフトアクチュエータ

  • 空気圧機器

  • Embedded System

  • Fluid Control

  • Soft Actuator

  • Control Device

  • Pneumatic Device

  • Mechatronics

  • 福祉機器

  • 組込みシステム

  • 福祉機器

Research Areas

  • Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Fluid engineering

  • Informatics / Robotics and intelligent system

  • Life Science / Medical assistive technology

  • Informatics / Mechanics and mechatronics

Education

  • Okayama University of Science   大学院工学研究科博士課程(後期)   システム科学専攻

    2017.4 - 2020.3

  • Okayama University of Science   Graduate School of Engineering  

    2017.1 - 2017.3

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  • Okayama University of Science   大学院工学研究科修士課程   知能機械工学専攻

    2014.4 - 2016.3

  • Okayama University of Science   工学部   知能機械工学科

    2010.4 - 2014.3

Research History

  • Okayama University   学術研究院自然科学学域   Assistant Professor

    2021.4

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  • National Institute of Technology, Matsue College   Department of Control Engineering   Assistant Professor

    2020.4 - 2021.3

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  • 株式会社アドバネット

    2016.4 - 2016.12

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Professional Memberships

  • 日本ロボット学会

    2022.9

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  • 一般社団法人システム制御情報学会

    2021.5

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  • The Japan Fluid Power System Society

    2017.4

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  • The Japan Society of Mechanical Engineers

    2014.1

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Committee Memberships

  • 日本フルードパワーシステム学会   企画委員  

    2022   

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Papers

  • 全方向に均一に減速可能な球面減速機の小型化へ向けた中間球配置の検討 Reviewed

    利根川 浩一, 五福 明夫, 笠島 永吉, 矢野 智昭, 下岡 綜

    日本AEM学会誌   30 ( 2 )   103 - 108   2022.6

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  • Development of Automatic Ladder Climbing Inspection Robot Using Extension Type Flexible Pneumatic Actuators Reviewed

    So Shimooka, Koki Katayama, Tetsuya Akagi, Shujiro Dohta, Takashi Shinohara, Takumi Kobayashi, Mohd Aliff

    International Journal of Automotive and Mechanical Engineering   19 ( 1 )   9593 - 9605   2022.5

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    Publishing type:Research paper (scientific journal)   Publisher:Universiti Malaysia Pahang Publishing  

    Recently, old and dilapidated infrastructures such as bridges, chimneys and tunnels have become very serious in Japan. Inspection of the infrastructure was done by climbing the ladders that were set up. However, the inspection becomes dangerous as it is necessary to climb into very high areas and unpredictable weather and conditions. In this study, a lightweight inspection robot that can climb ladders in adverse weather conditions was proposed and tested. To grasp a ladder pillar without hurting, the wrapping motion is required. Therefore, the flexible robot arm that can grasp the ladder pillar while approaching and release it while going away was also proposed and tested. The automatic ladder-climbing inspection robot that consists of two pillar grasping flexible robot arms and a lifting robot arm was proposed and tested. The control system of the robot, driven by four on/off valves and an embedded controller, was also constructed. The ladder climbing experiment using the tested robot was carried out. As a result, it could be confirmed that the robot can climb up and down a ladder with soft gripping the ladder, and the soft robot can be also operated by using only four valves.

    DOI: 10.15282/ijame.19.1.2022.21.0740

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  • Development of Flexible Electro-Hydraulic Spherical Actuator

    Wataru Kobayashi, Hiroaki Tamaki, Tetsuya Akagi, Shujiro Dohta, So Shimooka

    JOURNAL OF ROBOTICS AND MECHATRONICS   34 ( 2 )   382 - 389   2022.4

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:FUJI TECHNOLOGY PRESS LTD  

    Voluntary rehabilitation at home helps to prevent the joint contracture after medical treatment. Our previous studies concerned a low-cost portable rehabilitation device using a flexible spherical pneumatic actuator as a passive exercise device. However, the device requires a bulky compressor to drive it. This study results in a compact fluidic driving system that is highly flexible. The system adopts a flexible electrohydraulic cylinder driven by an electric motor and a hydraulic gear pump. An empirical equation for the suitable pump rotation for the desired displacement of the system has been determined. As a result, the multiposition control of the system within the tracking error of 4 mm has been realized by using the on/off control scheme based on the obtained equation. In addition, a flexible, spherical electro-hydraulic actuator using two proposed drive systems is developed and tested. Control of the attitude of the tested spherical actuator is successfully realized.

    DOI: 10.20965/jrm.2022.p0382

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  • Development of a Spiral Shaped Soft Holding Actuator Using Extension Type Flexible Pneumatic Actuators

    So Shimooka, Tetsuya Akagi, Shujiro Dohta, Takashi Shinohara, Takumi Kobayashi

    JOURNAL OF ROBOTICS AND MECHATRONICS   34 ( 2 )   373 - 381   2022.4

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:FUJI TECHNOLOGY PRESS LTD  

    Recently, several pneumatic soft actuators have been applied to wearable and welfare devices to provide nursing care and physical support for the elderly and disabled. In this study, as a wearable soft actuator for holding body, a spiral shaped soft holding actuator that can wrap a user according to their body shape was proposed and tested. The construction and operating principle of the tested soft actuator with circumferential restraint mechanism using three extension type flexible pneumatic actuators (EFPAs) has been discussed. As a result, it was found that the tested actuator could hold elbows and knees when the joint is in motion. An analytical model of the spiral actuator was also proposed to achieve an optimal design. It can be confirmed that the proposed analytical model can predict the shape of the actuator when various EFPAs are pressurized.

    DOI: 10.20965/jrm.2022.p0373

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  • Development of Pipe Inspection Robot using Soft Actuators, Microcontroller and LabVIEW Reviewed

    Mohd Aliff, Mohammad Imran, Sairul Izwan, Mohd Ismail, Nor Samsiah, Tetsuya Akagi, Shujiro Dohta, Weihang Tian, So Shimooka, Ahmad Athif

    International Journal of Advanced Computer Science and Applications   13 ( 3 )   349 - 354   2022.3

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  • Development of Six-Legged Mobile Robot Using Tetrahedral Shaped Pneumatic Soft Actuators Reviewed

    Kenta HASE, Tetsuya AKAGI, Shujiro DOHTA, Takashi SHINOHARA, Wataru KOBAYASHI, So SHIMOOKA

    JFPS International Journal of Fluid Power System   15 ( 1 )   33 - 39   2022

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    Publishing type:Research paper (scientific journal)   Publisher:The Japan Fluid Power Systems Society  

    DOI: 10.5739/jfpsij.15.33

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  • Development of Pneumatic Drive Pipe Inspection Robot using Radial Bending Type Soft Actuator Reviewed

    Takashi SHINOHARA, Hikaru FURUYA, Tetsuya AKAGI, Shujiro DOHTA, Takumi KOBAYASHI, So SHIMOOKA

    JFPS International Journal of Fluid Power System   15 ( 1 )   7 - 16   2022

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    Publishing type:Research paper (scientific journal)   Publisher:The Japan Fluid Power Systems Society  

    DOI: 10.5739/jfpsij.15.7

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  • Development of Wrist Rehabilitation Device Using Extension Type Flexible Pneumatic Actuators with Simple 3D Coordinate Measuring System Reviewed

    Weihang Tian, Yoshio Suzuki, Tetsuya Akagi, Shujiro Dohta, Wataru Kobayashi, Takashi Shinohara, So Shimooka, Aliff Mohd

    International Journal of Automotive and Mechanical Engineering   18 ( 4 )   9158 - 9169   2021.12

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  • Development of Tetrahedral-type Soft Actuator Driven by Low-cost Servo Valves Using RC Servo Motors Reviewed

    Takumi KOBAYASHI, Kenshiro TAKEUCHI, Tetsuya AKAGI, Shujiro DOHTA, Takashi SHINOHARA, So SHIMOOKA

    JFPS International Journal of Fluid Power System   14 ( 2 )   35 - 42   2021.12

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  • Development of flexible ankle rehabilitation device for preventing the disuse syndrome for bedridden patient

    So Shimooka, Tatsumi Tsubaki, Tetsuya Akagi, Shujiro Dohta, Takashi Shinohara

    Proc. STSS/ISOFIC/ISSNP 2021   STSS-25   2021.11

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  • Development of Extension Type Flexible Pneumatic Actuator with Displacement Sensor Using Ring-shaped Magnet and Hall Sensor for Tetrahedral-type Soft Mechanism Reviewed

    Kenshiro TAKEUCHI, Takumi KOBAYASHI, Tetsuya AKAGI, Shujiro DOHTA, Takashi SHINOHARA, Wataru KOBAYASHI, d So SHIMOOKA

    Proc. 11th JFPS International Symposium on Fluid Power   215 - 222   2021.10

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  • Analysis and Design of Servo Valve Using Buckled Tubes for Desired Operation of Flexible Robot Arm Reviewed

    Takumi KOBAYASHI, Hideyuki OBAYASHI, Tetsuya AKAGI, Shujiro DOHTA, Wataru KOBAYASHI, Takashi SHINOHARA, So SHIMOOKA

    Proc. 11th JFPS International Symposium on Fluid Power   195 - 205   2021.10

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  • Development of Pneumatic Variable Linear Stepping Actuator and Soft Stepping Actuator with Bending Motion for Rehabilitation Device of Hip Joint Reviewed

    Kota OE, Tetsuya AKAGI, Shujiro DOHTA, Takashi SHINOHARA, Wataru KOBAYASHI, So SHIMOOKA

    Proc. 11th JFPS International Symposium on Fluid Power   206 - 214   2021.10

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  • Analysis and Improvement of Cilia Type Pipe Inspection Robot Using Extension Type Flexible Pneumatic Actuators Reviewed

    Takashi SHINOHARA, Keichi KUSUNOSE, Tetsuya AKAGI, Shujiro DOHTA, Takumi KOBAYASHI, So SHIMOOKA

    JFPS International Journal of Fluid Power System   14 ( 1 )   19 - 27   2021.8

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    Publishing type:Research paper (scientific journal)   Publisher:The Japan Fluid Power Systems Society  

    DOI: 10.5739/jfpsij.14.19

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  • Development of Small-sized Servo Valve using Gate Mechanism and Diaphragm Reviewed

    Takumi KOBAYASHI, Tetsuya AKAGI, Shujiro DOHTA, Takashi SHINOHARA, So SHIMOOKA

    JFPS International Journal of Fluid Power System   14 ( 1 )   1 - 9   2021.8

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    Publishing type:Research paper (scientific journal)   Publisher:The Japan Fluid Power Systems Society  

    DOI: 10.5739/jfpsij.14.1

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  • Development of Low-cost Pressure Control Type Valves Using Buckled Tubes and Gate-mechanism Reviewed

    Takumi KOBAYASHI, Tetsuya AKAGI, Shujiro DOHTA, Takashi SHINOHARA, So SHIMOOKA

    JFPS International Journal of Fluid Power System   14 ( 1 )   28 - 34   2021.8

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    Publishing type:Research paper (scientific journal)   Publisher:The Japan Fluid Power Systems Society  

    DOI: 10.5739/jfpsij.14.28

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  • Development of intelligent rubber artificial muscle with integrated pneumatic driving system and built-in inner diameter sensor Reviewed

    So Shimooka, Tetsuya Akagi, Shujiro Dohta, Shinsaku Fujimoto, Wataru Kobayashi

    International Journal of Mechanical Engineering and Robotics Research   9 ( 1 )   136 - 142   2020.1

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    Authorship:Lead author   Publishing type:Research paper (scientific journal)  

    © 2020 by the authors. A high-power flexible actuator with a built-in displacement sensor that can support bathing is attractive as a wearable actuator. In the previous study, a rubber artificial muscle with the inner diameter sensor was proposed and tested. The sensor could measure the axial length of the rubber artificial muscle based on the geometric model of the muscle, indirectly. The position control of the muscle using the tested sensor based on the model and the identified parameter was successfully carried out. However, a measuring error caused by a setting error of the sensor was also observed. In this paper, to decrease the measuring error based on the sensor's setting position error in the muscle, an improved inner diameter sensor with radially arranged three photo reflectors was proposed and tested. To get larger generated force, the muscle with larger diameter compared with the previous one was also used. In addition, to realize the wearable actuator that can be easily operated, an intelligent rubber article muscle with an integrated pneumatic driving system and the built-in inner diameter sensor was proposed and tested. The position control of the tested muscle was also carried out. As a result, it could be confirmed that the tested muscle controlled by giving reference electric signal was be realized.

    DOI: 10.18178/ijmerr.9.1.136-142

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  • Development of portable rehabilitation device driven by low-cost servo valve using tap water Reviewed

    Hideyuki Obayashi, Tetsuya Akagi, Shujiro Dohta, Wataru Kobayashi, Yasuko Matsui, So Shimooka, Takashi Shinohara, Mohd Aliff

    International Journal of Mechanical Engineering and Robotics Research   9 ( 3 )   353 - 359   2020

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    © 2020 by the authors. Wearable driving systems for labor assistance and rehabilitation, such as power assist suits, have received much attentions and many studies have been done actively. In this study, the final target is to develop a low-cost home rehabilitation device driven by fluidic actuators and low-cost control valves. In the device, the size and cost of control valves become serious concerns. In the previous study, to realize a home rehabilitation device, the flexible spherical actuator that was able to give passive exercise to patients was developed. To drive the actuator, control valves are required. However, a servo valve that can control flow rate in analogue way is very expensive compared with other elements in the pneumatic driving system. Therefore, a low-cost servo valve using buckled tubes was proposed and tested. This valve can control both gas and liquid flow. In this paper, the development of the spherical actuator driven by servo valves using buckled tubes is described as a low-cost home rehabilitation device. The construction and operating principle of the spherical actuator and the servo valve using buckled tube is also described. In addition, the position control using the tested devices is carried out.

    DOI: 10.18178/ijmerr.9.3.353-359

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  • Development and Attitude Control of Washable Portable Rehabilitation Device for Wrist without Position Sensor Reviewed

    So SHIMOOKA, Yusuke HANE, Tetsuya AKAGI, Shujiro DOHTA, Wataru KOBAYASHI, Takashi SHINOHARA, Yasuko MATSUI

    JFPS International Journal of Fluid Power System   13 ( 3 )   25 - 34   2020

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:The Japan Fluid Power Systems Society  

    DOI: 10.5739/jfpsij.13.25

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  • Development of Reinforced Extension Type Flexible Pneumatic Actuator with Circumferential Restraints and Its Application for Rehabilitation Device Reviewed

    S. Shimooka, T. Akagi, S. Dohta, T. Shinohara, Y. Hane, M. Aliff

    International Journal of Automotive and Mechanical Engineering   17 ( 3 )   8116 - 8127   2020

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    © 2020 Based on super-aging society in Japan, a welfare pneumatic device to give passive exercise for the temporally injured elderly and disabled has been actively researched and developed. In previous study, based on opinions of Physical Therapist (PT) and Occupational Therapist (OT), a home-based rehabilitation device that could give passive exercise for patients using extension type flexible pneumatic actuators (EFPA), built-in quasi-servo valves and built-in displacement sensors using a wire type linear potentiometer was proposed and tested. However, the device did not have enough force and stiffness to drive shoulders with both arms. In this study, to get enough generated force and stiffness of the device, a parallel arranged EFPA reinforced with circumferential restraint was proposed and tested. The rehabilitation device for shoulder joint using the improved actuator was also proposed and tested. The built-in attitude control system using valves, sensors and an embedded controller was also developed. As a result, it can be confirmed that the device can give passive exercise with larger moving area and enough force and torque to move patient's shoulder joint.

    DOI: 10.15282/IJAME.17.3.2020.05.0609

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  • Development of a tetrahedral-shaped soft robot arm as a wrist rehabilitation device using extension type flexible pneumatic actuators Reviewed

    Wei Hang Tian, Cian Cheng Jhan, Misaki Inokuma, Tetsuya Akagi, Shujiro Dohta, So Shimooka

    Journal of Robotics and Mechatronics   32 ( 5 )   931 - 938   2020

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    © 2020, Fuji Technology Press. All rights reserved. Based on aging Japanese society, there has been a strong desire for development of rehabilitation devices that patients can use at home. The purpose of this study is to develop a home-based compact, lightweight, flexible, and safe rehabilitation device. In this study, a flexible robot arm for wrist rehabilitation that can be used, while patients hold the top of the robot arm, is proposed and tested. The proposed robot arm consists of three extension type flexible pneumatic actuators (EFPAs) restrained by 22 PET sheets. To achieve suitable bending stiffness of the robot arm, three EFPAs are restrained so as to form a tetrahedral shape. The robot arm can bend toward each radial direction. In this paper, the construction and operational principles of the tested robot arm are described. Additionally, the analytical model of the robot arm for attitude control is also described. In addition, the tracking control using the robot arm for the desired orbit is performed. As a result, the tested robot arm can trace the desired orbit based on the model. It is confirmed that the robot arm has the possibility for application as a wrist rehabilitation device for patients.

    DOI: 10.20965/jrm.2020.p0931

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  • Flexible Displacement Sensors Using Ultrasonic Sensor for Soft Actuator with Long Stroke Reviewed

    So Shimooka, Tetsuya Akagi, Shujiro Dohta, Wataru kobayashi and Takashi Shinohara

    International Journal of Mechanical Engineering and Robotics Research   8 ( 6 )   982 - 986   2019.11

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    Authorship:Lead author   Publishing type:Research paper (scientific journal)  

    Today, a welfare pneumatic equipment to support a nursing care and a self-reliance of the elderly and the disabled is actively researched and developed by many researchers. In the previous study, a portable rehabilitation device with a larger moving area which can give passive exercise for human shoulder was proposed and tested. As an actuator of the device, an extension type flexible actuator was tested. The actuator can extend more than twice of its original length. However, a flexible displacement sensor that can cover the actuator's moving area and be deformed according to the shape of the actuator has not been realized yet. In this study, various flexible displacement sensors using ultrasonic sensors for the actuator are proposed and tested. One is a displacement sensor that ultrasonic sensors are installed into the chamber of the actuator. As a result, it is confirmed that the sensor can not measure the displacement exactly under the condition when a higher supplied pressure is applied to the chamber. Therefore, a displacement sensor using a rubber tube and the ultrasonic sensor is proposed and tested as a sensor without influence of applied pressure. As a result, the sensor can successfully measure the displacement. However, the sensor requires the force to pull the tube. The pulling force causes local deformation of the actuator. Finally, the slide type displacement sensor without pulling force is proposed and tested. As a result, it is confirmed that the tested sensor can measure successfully and exactly.

    DOI: 10.18178/IJMERR.8.6.982-986

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  • Improvement of Home Portable Rehabilitation Device for Upper-Limbs Reviewed

    So SHIMOOKA, Tetsuya AKAGI, Shujiro DOHTA, Wataru KOBAYASHI, Takashi SHINOHARA

    JFPS International Journal of Fluid Power System   12 ( 1 )   10 - 18   2019

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    Authorship:Lead author   Publishing type:Research paper (scientific journal)   Publisher:The Japan Fluid Power Systems Society  

    DOI: 10.5739/jfpsij.12.10

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  • Development of tetrahedral type rehabilitation device using flexible pneumatic actuators Reviewed

    Yoshio Suzuki, Tetsuya Akagi, Shujiro Dohta, Wataru Kobayashi, Hiroaki Tamaki, Yasuko Matsui, So Shimooka

    International Journal of Mechanical Engineering and Robotics Research   7 ( 4 )   409 - 414   2018.7

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    © 2018 Int. J. Mech. Eng. Rob. Res. Rehabilitation devices help to recover physical ability of patients. This study aims to develop a home rehabilitation device which can be safe to use while patients are holding it by hands. In the previous study, as a portable rehabilitation device, the flexible spherical actuator that was able to give motions to patients while handling it was developed. The device can give rehabilitation motion for upper limb by only changing the relative position of patient's hands. However, the tested device cannot give absolute position for hands for rehabilitation of shoulders. In this study, we aim to develop a low-cost and simple home rehabilitation device for shoulder that can change absolute position of the device. In this paper, to realize position change of the flexible spherical actuator, the development of a tetrahedral type rehabilitation device using extension type flexible pneumatic actuators is described. The construction and the operating principle of the tested device is also described. The attitude control using the tested device and an embedded controller is also carried out. As a result, it can be confirmed that the absolute position of the object can trace the desired coordinate relatively well.

    DOI: 10.18178/ijmerr.7.4.409-414

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  • 駆動ユニットを有する変位センサ一体型ゴム人工筋の試作

    下岡 綜, 赤木 徹也, 堂田 周治郎, 小林 亘

    岡山理科大学紀要   53   75 - 82   2018.2

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  • Development of Portable Rehabilitation Device Using Flexible-Extension-Type Soft Actuator with Built-In Small-Sized Quasi-Servo Valve and Displacement Sensor Reviewed

    So SHIMOOKA, Shujiro DOHTA, Tetsuya AKAGI, Wataru KOBAYASHI, Masataka YONEDA

    JFPS International Journal of Fluid Power System   11 ( 2 )   18 - 25   2018

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    Authorship:Lead author   Publishing type:Research paper (scientific journal)   Publisher:The Japan Fluid Power Systems Society  

    DOI: 10.5739/jfpsij.11.18

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  • Improvement of a Pneumatic Control Valve with Self-Holding Function Reviewed

    Shujiro Dohta, Tetsuya Akagi, Wataru Kobayashi, So Shimooka, Yusuke Masago

    IOP Conference Series: Materials Science and Engineering   249 ( 1 )   2017.10

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    Publishing type:Research paper (international conference proceedings)  

    © 2017 Published under licence by IOP Publishing Ltd. The purpose of this study is to develop a small-sized, lightweight and low-cost control valve with low energy consumption and to apply it to the assistive system. We have developed some control valves; a tiny on/off valve using a vibration motor, and an on/off valve with self-holding function. We have also proposed and tested the digital servo valve with self-holding function using permanent magnets and a small-sized servo motor. In this paper, in order to improve the valve, an analytical model of the digital servo valve is proposed. And the simulated results by using the analytical model and identified parameters were compared with the experimental results. Then, the improved digital servo valve was designed based on the calculated results and tested. As a result, we realized the digital servo valve that can control the flow rate more precisely while maintaining its volume and weight compared with the previous valve. As an application of the improved valve, a position control system of rubber artificial muscle was built and the position control was performed successfully.

    DOI: 10.1088/1757-899X/249/1/012002

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  • Miniaturization of a Quasi-Servo Valve and Its Application to Positon Control of a Rubber Artificial Muscle with Built-in Sensor Reviewed

    Yoshinori Moriwake, Shujiro Dohta, Tetsuya Akagi, So Shimooka

    MATEC Web of Conferences   82   2016.10

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    Publishing type:Research paper (international conference proceedings)  

    © The Authors, published by EDP Sciences, 2016. Nowadays, the care and welfare pneumatic devices to support a nursing care and a self-reliance of the elderly and the disabled are actively researched and developed by many researchers. These wearable devices require many actuators and control valves for multi degrees of freedom. The total weight and volume of the wearable devices increases according to the degree of freedom. Our final goal is to develop a compact wearable actuator with built-in sensor, controller and control valve and to apply it to a wearable assisted device. In our previous study, a small-sized quasi-servo valve which consists of two on/off control valves and an embedded controller was developed. In this study, the quasi-servo valve composing of much smaller-sized (40% in mass, 42% in volume) on/off valves is proposed and tested. In addition, the rubber artificial muscle with an ultrasonic sensor as a built-in displacement sensor is proposed and a position control of the muscle is carried out using the tested tiny valve and built-in sensor. As a result, it was confirmed that the position control of the muscle can be realized using the tested ultrasonic sensor.

    DOI: 10.1051/matecconf/20168201006

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  • Application of Pressure Control Type Quasi-Servo Valve to Force Control System Reviewed

    Yoshinori Moriwake, Shujiro Dohta, Tetsuya Akagi, and So Shimooka

    Journal of Automation and Control Engineering   4 ( 3 )   209 - 212   2016.6

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  • Development of compact flexible displacement sensors using ultrasonic sensor for wearable actuators Reviewed

    Tetsuya Akagi, Shujiro Dohta, Takafumi Morimoto, Yasuko Matsui, So Shimooka

    MATEC Web of Conferences   51   2016.4

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    Language:English   Publishing type:Research paper (international conference proceedings)   Publisher:EDP Sciences  

    © 2016 Owned by the authors, published by EDP Sciences. In position control of wearable actuator such as a rubber artificial muscle, a compact flexible displacement sensor is much attractive and required. In this paper, two types of flexible displacement sensor using the ultrasonic sensor were introduced. One is a built-in displacement sensor for rubber artificial muscle. Another is a sensor that can measure the sliding displacement on a flexible tube for flexible robot. Both sensors use ultrasonic displacement sensors. The construction, operating principle and measuring performance of two sensors were also described.

    DOI: 10.1051/matecconf/20165102002

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  • Analytical model of pipe inspection robot using flexible pneumatic cylinder Reviewed

    Haojun Qiu, Shujiro Dohta, Tetsuya Akagi, So Shimooka, Shinsaku Fujimoto

    Lecture Notes in Electrical Engineering   345 ( 1 )   325 - 334   2016

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    Language:English   Publishing type:Research paper (international conference proceedings)   Publisher:Springer Verlag  

    © Springer International Publishing Switzerland 2016. A pipe inspection robot is useful to reduce the inspection cost. In our previous study, a novel pipe inspection robot using a flexible pneumatic cylinder that can be driven even if it bends has been proposed and tested. The built-in pneumatic driving system using a tiny embedded controller and small-sized valves have also been proposed and tested to decrease the mass of the robot for increasing inspection area. In this chapter, in order to find out the optimal driving pattern and length of the robot, an analytical model of the pipe inspection robot is proposed. The model consists of two on/off control valves and a sliding mechanism which is composed of a flexible pneumatic cylinder.

    DOI: 10.1007/978-3-319-17314-6_43

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  • Analysis and simulation of small-sized quasi-servo valve using tiny on/off control valve Reviewed

    So Shimooka, Shujiro Dohta, Tetsuya Akagi, Yoshinori Moriwake

    Lecture Notes in Electrical Engineering   345 ( 1 )   59 - 66   2016

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    Authorship:Lead author   Language:English   Publishing type:Research paper (international conference proceedings)   Publisher:Springer Verlag  

    © Springer International Publishing Switzerland 2016. Today, the care and welfare pneumatic equipment to support a nursing care and a self-reliance of the elderly and the disabled are actively researched and developed by many researchers. These wearable devices require many servo valves for multidegrees of freedom and precise control performance of the wearable actuator. The total weight of the wearable devices increases according to the degree of freedom. In our previous study, a small-sized and lightweight pressure control- type quasi-servo valve was developed t. The valve consists of two on/off control valves and an embedded controller. In this study, the quasi-servo valve composing of much smaller-sized (40% in mass, 42% in volume) on/off valves is proposed and tested. The analytical model of the tested valve is proposed and the system parameters are identified. As the result of the comparison between experimental results and simulated, it was confirmed that the proposed analytical model and the identified system parameters were valid.

    DOI: 10.1007/978-3-319-17314-6_8

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  • Development and Position Control of Rubber Artificial Muscle using Built-in Ultrasonic Sensor Reviewed

    So "Shimooka, Shujirou Dohta, Tetsuya Akagi, Yoshinori" Moriwake

    51 ( 51 )   63 - 68   2015.11

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    Other Link: http://id.nii.ac.jp/1182/00002110/

  • Position Control of Rubber Artificial Muscle Using Built-in Ultrasonic Sensor and Quasi-Servo Valve Reviewed

    So Shimooka, Shujiro Dohta, Tetsuya Akagi and Yoshinori Moriwake

    International Journal of Mechanical Engineering and Robotics Research   4 ( 4 )   304 - 308   2015.10

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  • 低コスト圧力制御型疑似サーボ弁の性能評価と応用 Reviewed

    下岡 綜, 堂田周治郎, 赤木徹也, 守分善法

    岡山理科大学紀要   50   55 - 60   2014.11

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  • Application of Pressure Control Type Quasi-Servo Valve for Positioning of Rubber Artificial Muscle Reviewed

    So Shimooka, Shujiro Dohta, Tetsuya Akagi, Yoshinori Moriwake

    International Forum on Systems and Mechatronics Proceedings   ( D01 )   1 - 6   2014.10

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  • Estimation of pressure control performance in low-cost quasi-servo valve using embedded controller Reviewed

    So Shimooka, Shujiro Dohta, Tetsuya Akagi, Yoshinori Moriwake, Feifei Zhao

    Lecture Notes in Electrical Engineering   293 ( 1 )   359 - 366   2014

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    © Springer International Publishing Switzerland 2014. In our previous study, a small-sized and light-weight pressure control type quasi-servo valve was developed to reduce the burden of the user in a powerassisted system. The valve consists of inexpensive on/off control valves and embedded controller. In this study, the pressure control performances using four kinds of control scheme were investigated and compared by experiment and simulation. The frequencies up to 5 Hz were applied to the tested pressure control system. As an index of control performance, we used the mean absolute error. As a result, the sliding mode controller gave smaller error on the whole and PD controller gave the good performance in the higher frequency. It was confirmed that the introducing the dead zone to a control input and the lowering the supply pressure were effective to suppress the impulsive pressure change.

    DOI: 10.1007/978-3-319-04573-3_44

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MISC

  • SMC高田賞受賞について

    下岡 綜

    日本フルードパワーシステム学会誌   52   26 - 30   2021.8

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  • Development of Sensor-less Portable Rehabilitation Device for Wrist

    羽根佑典, 下岡綜, 赤木徹也, 堂田周治郎, 小林亘

    フルードパワーシステム講演会講演論文集   2019   2019

Presentations

  • 伸長型柔軟空気圧アクチュエータを用いたはしご自動昇降ロボットの開発

    下岡 綜, 片山航希, 赤木 徹也, 堂田 周治郎, 篠原隆, 小林卓巳

    2 0 2 1 年春季フルードパワーシステム講演会  2021.6.24 

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    Event date: 2021.6.24 - 2021.6.25

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  • 寝たきり患者のための足首用リハビリテーション機器の開発

    下岡 綜, 椿建己, 赤木 徹也, 堂田 周治郎, 篠原 隆

    2021年春季フルードパワーシステム講演会講演  2021.6.24 

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    Event date: 2021.6.24 - 2021.6.25

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  • ゲート機構を用いた小型サーボ弁の改良

    小林卓巳, 赤木徹也, 堂田周治郎, 篠原 隆, 下岡 綜

    2020 年秋季フルードパワーシステム講演会  2020.12.9 

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    Event date: 2020.12.8 - 2020.12.9

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  • 周拘束強化による伸長型柔軟空気圧アクチュエータの改良とリハビリテーション 機器への応用

    下岡 綜,赤木 徹也,堂田 周治郎,小林 亘

    2019年秋季フルードパワーシステム講演会  2019.11.21 

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    Event date: 2019.11.20 - 2019.11.22

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  • Development of flexible helical actuator with holding mechanism

    Ryo TAKAHASHI, So SHIMOOKA, Akio GOHUKU, Tetsushi KAMEGAWA, Tetsuya AKAGI

    2022.5.27 

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  • ソフトアクチュエータを用いた肩関節用リハビリテーション機器の開発

    下岡 綜

    KMSメディカル・アーク2020 with MTO  2020.2.6 

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  • 周拘束強化型EFPAを用いたリハビリテーション機器

    下岡 綜, 赤木 徹也, 堂田 周治郎, 羽根 佑典

    OUSフォーラム2019  2019.11.25 

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  • 伸長型柔軟アクチュエータを用いた上肢リハビリテーション機器の開発

    下岡 綜

    KMSメディカル・アーク2019 with MTO  2019.2.7 

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  • 伸長型アクチュエータを用いたポータブルリハビリテーション機器の改良

    下岡 綜, 赤木 徹也, 堂田 周治郎, 羽根 佑典

    OUSフォーラム2018  2018.11.26 

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  • 弁・センサ搭載型ポータブルリハビリテーション機器の改良

    下岡 綜,赤木 徹也,堂田 周治郎,小林 亘,篠原 隆

    平成30年秋季フルードパワーシステム講演会  2018.10.25 

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  • 空気圧駆動リハビリーテンション機器のための超音波式柔軟変位センサの試作

    下岡 綜,赤木 徹也,堂田 周治郎,小林 亘

    ロボティクス・メカトロニクス講演会2018 in Kitakyushu論文集  2018.6.4 

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  • ゴム人工筋用内径センサの改良

    下岡 綜, 赤木 徹也, 堂田 周治郎, 小林亘

    日本機械学会 中国四国支部 第56 期総会・講演会  2018.3.7 

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  • 伸長型アクチュエータを用いたポータブルリハビリテーション機器の開発

    赤木 徹也,堂田 周治郎,下岡 綜

    OUSフォーラム2017  2017.11.27 

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  • 超音波センサを用いた空気圧伸長型柔軟アクチュエータ用変位センサと搭載型疑似サーボ弁の試作

    下岡 綜,赤木 徹也,堂田 周治郎,小林亘,米田眞崇

    平成29年春季フルードパワーシステム講演会  2017.5.25 

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  • 超音波センサ内蔵型ゴム人工筋の改良と制御

    下岡 綜,堂田周治郎,赤木徹也,守分善法

    日本機械学会中国四国支部第54期講演会講演論文集  2016.3.9 

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  • 超音波センサを内蔵したゴム人工筋の位置決め制御

    下岡 綜,堂田周治郎,赤木徹也,守分善法

    第24 回計測自動制御学会中国支部学術講演会論文集論文集  2015.11.28 

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  • 超音波センサ内蔵型ゴム人工筋の位置決め制御

    下岡綜

    OUSフォ-ラム2015  2015.11.20 

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  • 超音波センサと疑似サーボ弁を用いたゴム人工筋の位置決め制御

    下岡 綜,赤木徹也,堂田周治郎,守分 善法

    平成27年春季フルードパワーシステム講演会論文集  2015.5.28 

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  • 小型オンオフ弁を用いたウェアラブル疑似サーボ弁の試作と解析

    下岡 綜,堂田周治郎,赤木徹也,守分 善法

    日本機械学会中国四国支部第53期講演会講演論文集  2015.3.6 

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  • 圧力制御型疑似サーボ弁の性能評価とゴム人工筋の位置決め制御への応用

    下岡 綜,堂田周治郎,赤木徹也,守分善法

    第23回計測自動制御学会中国支部学術講演会  2014.11.29 

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  • 組込みコントローラを用いた疑似サーボ弁の性能評価と応用

    下岡 綜

    OUSフォ-ラム2014  2014.11.21 

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  • 低コスト圧力制御型疑似サーボ弁の性能評価

    下岡 綜, 堂田 周治郎, 赤木 徹也, 守分 善法, 趙 菲菲

    日本機械学会 中国四国学生会第44回学生員卒業研究発表講演会論文集  2014.3.6 

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Awards

  • SMC Takata Award

    2021   Development and Attitude Control of Washable Portable Rehabilitation Device for Wrist without Position Sensor

    So SHIMOOKA, Yusuke HANE, Tetsuya AKAGI, Shujiro DOHTA, Wataru KOBAYASHI, Takashi SHINOHARA, Yasuko MATSUI

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Research Projects

  • 遠隔操作による集団エクササイズデバイスの開発

    2021.08 - 2022.03

    公益財団法人しまね産業振興財団  IT活用サービス創出シード支援助成金  プロトタイプ検証支援

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  • 家庭インフラを動力源としたホームリハビリテーション機器の開発

    2021.04 - 2022.03

    公益財団法人 岡山工学振興会  産業先行研究助成

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  • 伸長型柔軟空気圧アクチュエータの改良と在宅用上肢リハビリテーション機器への応用

    2021.04 - 2022.03

    公益財団法人 油空圧機器技術振興財団 

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Class subject in charge

  • Exercise on Systems Engineering (2021academic year) Third semester  - 火8

  • Practice on Systems EngineeringⅡ (2021academic year) 3rd and 4th semester  - [第3学期]火5,火6,火7, [第4学期]火5,火6,火7,火8

  • Laboratory Work and Practice on Basic Engineering (2021academic year) 1st and 2nd semester  - 火5,火6,火7,火8

 

Media Coverage

  • 高齢者の運動 遠隔指導 テクノプロジェクト、機器開発へ Newspaper, magazine

    日本経済新聞  日本経済新聞  2021.12

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