Faculty Profiles - KANDA Takefumi

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1207 An ultrasonic motor for a cryogenic environment under a high intense magnetic field

TAKEDA Dai, YAMAGUCHI Daisuke, FUJISAWA Kazuya, KANDA Takefumi, SUZUMORI Koichi

The Machine Design and Tribology Division meeting in JSME 2012.4.22 The Japan Society of Mechanical Engineers

Event date： 2012.4.22

Language：Japanese

The aim of this study is to realize an ultrasonic motor which can be driven in a cryogenic temperature environment under a high intense magnetic field. We have fabricated and evaluated the ultrasonic motor made of titanium. The motor's diameter and length are 22 mm and 30.5 mm, respectively. We have succeeded in driving the ultrasonic motor at 4.5 K. The rotation speed was 215 rpm. We have also succeeded in driving the motor under the intense magnetic field of 7 T.

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2A2-J09 Flow Metering Valve for Pneumatic Actuators Using Particle Excitation by PZT Vibrator : 7th report Optimization of orifice diameter for continuous flow rate control(Mechanism and Control for Actuator)

HIROOKA Daisuke, SUZUMORI Koichi, KANDA Takefumi

2011.5.26 The Japan Society of Mechanical Engineers

Event date： 2011.5.26

Language：Japanese

The purpose of this study is the development of the valve that can precisely control pneumatic cylinders. The valve that has a lightweight and simple structure and uses piezoelectric oscillator which is driven at resonance mode and it can control flow rate by controlling the amplitude of the particles excitation. We reported this flow control valve principle in the previous paper and concluded the diameter of orifice is an important parameter for flow rate change. In this report, we have designed a new prototype for the purpose of high controllability. We have measured flow rate characteristics and observed particle motion. From these result, we confirmed the conditions necessary for continuous adjustment of flow quantity by experiment.

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1P1-A04 Research Project of Soft Fluid Actuator in Okayama University(Robotics & Mechatronics technology and Cooperation with industry in Okayama)

WAKIMOTO Shuichi, SUZUMORI Koichi, NORITSUGU Toshiro, NARUSE Keiji, OKA Hisao, KANDA Takefumi, TAKAIWA Masahiro, SASAKI Daisuke, IRIBE Gentaro, MATSUURA Koji, KITAWAKI Tomoki

2011.5.26 The Japan Society of Mechanical Engineers

Event date： 2011.5.26

Language：Japanese

Research project of "Soft fluid actuator" has been promoted in Okayama University. This project is organized by different field researchers; robotics, mechatoronics, health and medical researchers. Soft fluidic actuators are configured with polymer material and driven by fluid (pneumatic and hydraulic) pressure. Therefore they will have many advantages; high compliance, light weight, low cost and non-electrical drive. Namely they are breakthroughs of the realizations of highly safe mechanisms. In the project, not only fundamental researches of new soft fluid actuators but also applying them to medical and welfare mechanical systems have progressed. In this paper, the concept and purpose, the organization, and some researches of the project are introduced.

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1P1-A02 Emulsion Generation based on Microreator Oscillated by Piezoelectric Vibrator(Robotics & Mechatronics technology and Cooperation with industry in Okayama)

KANDA Takefumi, SUZUMORI Koichi, ONO Tsutomu, OGAWARA Ken-ichi, HIGAKI Kazutaka

2011.5.26 The Japan Society of Mechanical Engineers

Event date： 2011.5.26

Language：Japanese

The aim of this paper is to introduce a project for emulsion generation device in Okayama University. We have generated sub-micrometer size droplets by using an ultrasonic vibration and microchannel plates. Especially, the device and system is for the generation of drug droplets. The ultrasonic vibration is oscillated by PZT plates and microchannel plates are made of stainless steel. The distribution of pressure depends on cross sectional pattern of the microchannel. As the applied voltage increased, emulsion became smaller and distribution became sharper. When the vibrator was oscillated in 2.25 MHz, the generated emulsion has an average diameter of 200 nm.

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1A2-F10 Driving Performances of the Cryo Ultrasonic Motor Using Bolt-clamped Langevin Type Transducer(Robotics & Mechatronics in Hyper Environment)

YAMAGUCHI Daisuke, KANDA Takefumi, SUZUMORI Koichi

2011.5.26 The Japan Society of Mechanical Engineers

Event date： 2011.5.26

Language：Japanese

In this study, a small ultrasonic motor which is driven at a cryo temperature has been fabricated and evaluated. The motor consists of a bolt-clamped Langevin-type transducer (BLT), a rotor, a bearing, a spring, and a casing. The maximum diameter and the height of the motor are 22mm and 30.5mm. The ultrasonic motor has been evaluated in the room temperature and in the cryo helium gas. The relationship between contact pre-pressure of the rotor to the BLT the continuously rotating temperature is indicated. The rotation speed was 553 rpm at the room temperature and 65.4 rpm at the 4.5K helium gas.

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1A2-H06 Improvement of the Ultrasonic Vibration Mixing Device to Deposit PZT Thin Film by Hydrothermal Method(MEMS and Nano-Technology)

NAKAHIRA Daichi, UENO Masahiro, KANDA Takefumi, SUZUMORI Kouichi

2011.5.26 The Japan Society of Mechanical Engineers

Event date： 2011.5.26

Language：Japanese

In this research, an ultrasonic vibration mixing device for the hydrothermal deposition system has been designed. A PZT thin film has been deposited on a titanium plate by the hydrothermal method with the fabricated new ultrasonic vibration mixing device. To improve a stir performance, the ultrasonic vibration mixing device has been designed by using the finite element method. The new vibration mechanism has been evaluated. The pressure of 396[kPa] was generated in the autoclave. This value was about twice larger than that of the vibration mechanism of the previous model. The deposited PZT thin film has been observed by the SEM.

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1A2-F09 A Low-Profile Ultrasonic Motor Using Sector Shaped Vibrators for High Magnetic Field(Robotics & Mechatronics in Hyper Environment)

FUJISAWA Kazuya, MAEDA Hiraku, KANDA Takefumi, SUZUMORI Kouichi, TAKEGOSHI Kiyonori, MIZUNO Takashi

2011.5.26 The Japan Society of Mechanical Engineers

Event date： 2011.5.26

Language：Japanese

The purpose of this research is to apply a low-profile ultrasonic motor using sector shaped vibrators for sample spinning of the solid-state nuclear magnetic resonance (NMR) analysis. We have fabricated the motor made of nonmagnetic materials. The transducer consists of two sector shaped vibrators. The maximum diameter of this motor is 17 mm and the height is 41.5 mm. We have evaluated the driving performance of this motor in high magnetic field. As a result, the magnetic field had a small effect on the rotation performance of the motor. Therefore the motor can be used for sample spinning of the solid-state NMR analysis.

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1A2-H05 Improvement of the condition of PLZT films by using a hydrothermal method and evaluation of the actuators(MEMS and Nano-Technology)

TONOKAI Akimasa, YAMAGUCHI Daisuke, KANDA Takefumi, SUZUMORI Koichi

2011.5.26 The Japan Society of Mechanical Engineers

Event date： 2011.5.26

Language：Japanese

Photo driven actuators have received an attention in recent years. PLZT has a photostrictive effect and can be driven by non-contact energy supply. In this study, PLZT films have been deposited by using a hydrothermal method. The growth and the condition of crystals would depend on a reactive temperature and an amount of reagent. The depositing condition of PLZT films has been improved and the characteristics of the films have been evaluated. Additionally, PLZT film actuators have been fabricated and those actuators have been driven by the ultraviolet lays. By measuring displacement, electric current and generative force, the PLZT thin film actuators have been evaluated.

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圧電高分子を用いた筋音センサの等尺性収縮による評価

石塚博章, 柏原斉佳, 神田岳文, 脇元修一, 岡久雄

第36回「センサ・マイクロマシンと応用システム」シンポジウム 2019

柔軟ひずみセンサを用いたウェアラブルインタフェースによる3自由度ソフトマニピュレータの操作

萩原弘貴, 脇元修一, 神田岳文, 古川匠太

日本機械学会2019年度年次大会 2019

インダクタンス変化型変位センサを一体化したスマート人工筋の磁性流体による駆動

小川草太, 脇元修一, 神田岳文, 大村健人

日本機械学会2019年度年次大会 2019

Composote structure of McKibben artificial muscle and optical ficer sensor International conference

Sota KOGAWA, Shuichi WAKIMOTO, Takefumi KANDA, Kento OMURA

International Workshop on Piezoelectric materials and Applications in Actuators 2019 & ENHANCE Workshop (IWPMA2019) 2019

Control of a hydraulic cylinder a particle excitation type three way valve International conference

Hikaru Yamamoto, Takefumi Kanda, Shuichi Wakimoto, Koichi Suzumori, Takahiro Ukida, Hiroyuki Nabae

International Workshop on Piezoelectric Materials and Applications in Actuators 2019 & ENHABCE Workshop (IWPMA2019) 2019

微粒子励振型制御弁の流量特性改善に関する研究

髙見春人, 神田岳文, 脇元修一, 山本陽光, 鈴森康一, 浮田貴宏, 難波江裕之

2019年度精密工学会秋季大会 2019

極低温環境下駆動用矩形型振動子の構造の検討

西田匠, 神田岳文, 脇元修一

2019年度精密工学会秋季大会 2019

ジャミング転移現象を利用した柔軟ロボットアームの可変剛性機能の検証

井村修司, 脇元修一, 神田岳文

日本機械学会2019年度年次大会 2019

細径人工筋による平紐型集積構造の提案と特性評価

高田諒, 脇元修一, 神田岳文, 鈴森康一

第37回日本ロボット学会学術講演会 2019

液滴生成および急冷可能なマイクロ流体デバイスを用いたナノ粒子生成システムの試作

藤本望夢, 神田岳文, 大森健太郎, 阪田祐作, 山田嘉昭, 妹尾典久, 脇元修一, 中崎義晃, 音山貴史

令和元年度電気学会センサ・マイクロマシン部門総合研究会 2019

たわみ振動デバイスによるコアシェル液滴生成条件の検討

大森健太郎, 藤本望夢, 神田岳文, 脇元修一, 妹尾典久

2019年度精密工学会秋季大会 2019

ラバーコーティングによる空気圧人工筋の特性改善

萩原弘貴, 脇元修一, 神田岳文, 山本好恵

第37回日本ロボット学会学術講演会 2019

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