Search Results 1-20 of 2207

  • Solid piezoelectric - shell inverse piezoelectric partitioned analysis method for thin piezoelectric bimorph with conductor layers  [in Japanese]

    高田 黎 , 石原 大輔 , Chigahalli Ramegowda Prakasha , 二保 知也 , 堀江 知義

    アクチュエータやセンサに用いられる圧電バイモルフは,通常,薄く,かつ,電極やシム材といった導体が挿入されている.ゆえに,本研究では,導体層を有する薄い圧電バイモルフを対象とする.ソリッド要素は厚さ方向の任意の電位分布を表現することに適している.一方,シェル要素は薄い構造の解析に適している.ゆえに,ソリッド要素とシェル要素を,それぞれ,圧電解析と逆圧電解析に用い,それらを連成させるために,シェル要素 …

    日本計算工学会論文集 (2019), 20190011-1-20190011-7, 2019-09-28

    IR 

  • Proposal of Finite Element Method for Structure-Piezoelectric-Circuit Coupled Problems  [in Japanese]

    TAKATA Rei , ISHIHARA Daisuke , RAMEGOWDA Prakasha Chigahalli , NIHO Tomoya , HORIE Tomoyoshi

    … <p>A piezoelectric bimorph for actuators and sensors is usually connected to a circuit. … The piezoelectric bimorph is affected by charge from the circuit in its mechanical behavior, and it also plays a role of a capacitor in the circuit. …

    The Proceedings of The Computational Mechanics Conference 2019.32(0), 276, 2019

    J-STAGE 

  • Device Development for Compressive Stress Field Using Piezoelectric Actuator  [in Japanese]

    OBUCHI Kento , MIYAGAWA Mutsumi , NAKAMURA Hitoshi , OZAWA Takumi

    … By using the piezoelectric actuator as a method of suppressing crack growth, we could perform relaxation in the stress of stress concentrated part. … However, if the piezoelectric actuator adhered to the test piece directly, a problem arises. … As problems, the amount of deformation escapes to the outside, or repeating attachment and detachment damages the piezoelectric actuator. …

    The Proceedings of Mechanical Engineering Congress, Japan 2019(0), S03110P, 2019

    J-STAGE 

  • Loading frequency improvement in fatigue test of single crystal silicon using parallel tensile testing device  [in Japanese]

    YAMAZAKI Yuki , HIRAI Yoshikazu , TSUCHIYA Toshiyuki , TABATA Osamu

    … However, it is difficult because the piezoelectric actuator, which is used for loading, has trade-off relationship between displacement amplitude and driving frequency. …

    The Proceedings of Mechanical Engineering Congress, Japan 2019(0), J22309P, 2019

    J-STAGE 

  • Rotation angle measurement for mechanical systems under the extreme environment  [in Japanese]

    FURUTA Sotaro , SUGAWARA Yoshiki , SAKAMA Sayako

    … One is actuator, and the other is measurement sensor for control system. … By using the proposed mechanism, change of contact point converted to the strain of unimorph type piezoelectric element. …

    The Proceedings of Mechanical Engineering Congress, Japan 2019(0), J16307P, 2019

    J-STAGE 

  • Optimization of horn shape to amplify longitudinal vibration by using ultrasonic wave  [in Japanese]

    ARAKAWA Ryo , MORI Shigeki , SHIBUYA Yotsugi , NAGANAWA Akihiro , OBINATA Goro

    <p>Film formation methods by liquid atomization is widely studied, and among these, liquid atomization by using ultrasonic waves is classified into methods by cavitation and capillary waves whic …

    The Proceedings of Mechanical Engineering Congress, Japan 2019(0), J11102, 2019

    J-STAGE 

  • High Accuracy Space Structure System by Using Smart Structures  [in Japanese]

    TANAKA Hiroaki

    Piezoelectric materials are known as potential candidate to use as the sensor and actuator. … In order to investigate effects of space environment on piezoelectric material, PiezoElectric</p><p>Actuator Characteristic Experiments (PEACE) was proposed and the flight model was developed.</p> …

    The Proceedings of Mechanical Engineering Congress, Japan 2019(0), F19105, 2019

    J-STAGE 

  • A low computational load model predictive controller for semi-active vibration control using piezoelectric actuators  [in Japanese]

    NAKAHARA Takeshi , MAKIHARA Kanjuro

    … <p>This paper presents a concise and straightforward model predictive controller for semi-active vibration control systems using piezoelectric actuators with switched inductance shunts in order to finally reduce the computational loads of the controller. …

    The Proceedings of the Dynamics & Design Conference 2019(0), 406, 2019

    J-STAGE 

  • セグメント高速ステアリングミラー用圧電アクチュエータユニットのチップ・チルト及び上下駆動  [in Japanese]

    Nishida Rina , Han Dong , Zhong Jianpeng , Shinshi Tadahiko

    <p>レーザ加工や光通信におけるレーザ走査の高応答化,大容量化を実現するために,大口径な高速ステアリングミラー(FSM)の開発が求められるが,大口径化に伴う固有振動数の低下が高応答化を妨げてきた.本研究では,圧電アクチュエータユニットにより高応答駆動される小型ミラーを集積化,協調制御することで,大口径化と高応答化の両立を目指す.本報では,ユニット単体におけるチップ・チルトと上下方向の駆 …

    Proceedings of JSPE Semestrial Meeting 2019A(0), 449-450, 2019

    J-STAGE 

  • Precision XYθ Positioning Control of Inchworm Robot by 4 Optical Encoders  [in Japanese]

    Tanabe Kengo , Funatsu Hitoshi , Fuchiwaki Ohmi

    <p>IoT社会実現の為に小型部品の高精度な実装技術の需要が高まっている.本研究では,圧電アクチュエータの伸縮と電磁石の着脱を同期させて尺取虫の原理で動作するホロノミック型自走機構のXYθ位置決め制御を検討している.本報では四つのエンコーダによる分解能0.1µmでのXYθの変位計測と,FPGAによるFB周期3µsの閉ループ制御により,12方向の並進動作に関して目標座標との閾値をXY軸で …

    Proceedings of JSPE Semestrial Meeting 2019A(0), 454-455, 2019

    J-STAGE 

  • レーザモーションセンサを用いたマイクロ移動ロボットの位置計測  [in Japanese]

    Miyake Hiroaki , Torii Akihiro , Mototani Suguru , Doki Kae

    <p>圧電素子と電磁石を用いて微小動作するロボットを開発してきた。製作したロボットは多自由度位置決め装置への応用を目指している。しかし外乱の影響により目標と異なる軌道で移動するため、指定された位置との差を算出し補正することが課題となる。そこで本研究では、レーザマウス用センサを用いた位置計測により位置を補正する方法を提案し、レーザ変位計と比較することでセンサの精度を明らかにした。< …

    Proceedings of JSPE Semestrial Meeting 2019A(0), 348-348, 2019

    J-STAGE 

  • Development of Static Load Sensor utilizing both Direct and Inverse Piezoelectric Effect of Piezoelectric Element

    OSHIMA Kazuhiko , ISHIGURO Ryoto , OGATA Kazuya

    … It's possible to measure static load using piezoelectric ceramics by sticking 2 pieces of identical ceramics together. … When one of the ceramics is oscillated at its resonant frequency, the other ceramics generates voltage by following up to the motion of the actuator ceramics. …

    Journal of the Japan Society of Applied Electromagnetics and Mechanics 27(4), 419-427, 2019

    J-STAGE 

  • Evaluation of Flow Control Valve using Particle Excitation for High Pressure Artificial Muscle  [in Japanese]

    YAMAMOTO Hikaru , NABAE Hiroyuki , HASHIMOTO Kou , KANDA Takefumi , WAKIMOTO Shuichi , SENO Norihisa , MORISHIGE Yoshihisa , TAKAMI Haruto , SUZUMORI Koichi , UKIDA Takahiro

    … For a structure of the fabricated valve, we used a 2 stage valve structure to control the high pressure actuator with low power. …

    The Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec) 2019(0), 2P1-E09, 2019

    J-STAGE 

  • Picking up single motile cells using high-speed and high-resolution flow control  [in Japanese]

    Kasai Yusuke , Sakuma Shinya , Arai Fumihito

    … Therefore, we have presented a high-speed picoliter pipette as a single cell pick-up device, which is driven by a piezoelectric actuator. …

    The Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec) 2019(0), 2P1-F10, 2019

    J-STAGE 

  • Tactile Device Based on Piezoelectric MEMS 2<sup>nd</sup> Report: Structural Improvements

    Kanda Kensuke , Toyama So , Takahara Kosuke , Fujita Takayuki , Maenaka Kazusuke

    … A tactile device based on a piezoelectric MEMS is improved in this study. … In conclusion, structural improvements resulted in low-voltage actuation and reduced warpage of the piezoelectric MEMS tactile device.</p> …

    IEEJ Transactions on Sensors and Micromachines 139(11), 369-374, 2019

    J-STAGE 

  • Geometrically nonlinear electro-aeroelastic framework for morphing wing with piezoelectric actuators  [in Japanese]

    TSUSHIMA Natsuki , ARIZONO Hitoshi , YOKOZEKI Tomohiro , MAKIHARA Kanjuro

    … <p>In this paper, a flexible morphing wing with piezoelectric materials for morphing actuation is studied. … The objectives of this paper are 1) to develop an integrated geometrically nonlinear electro-aeroelastic framework, which allows evaluating performances of flexible morphing wings with piezoelectric actuators, 2) to validate the developed analysis framework, and 3) to demonstrate the capability of the framework and explore the performance. …

    Transactions of the JSME (in Japanese) 85(878), 18-00506-18-00506, 2019

    J-STAGE 

  • Development of biaxial active vibration suppression system with piezoelectric inertial actuator for electron microscope  [in Japanese]

    TAKAHASHI Hiroki , SAEGUSA Takashi , ARISAKA Toshihiro

    … In this process, first, an inertial actuator using multilayer piezoelectric devices was developed as the damping actuator, and its characteristics were investigated. …

    Transactions of the JSME (in Japanese) 85(878), 19-00161-19-00161, 2019

    J-STAGE 

  • Magnetic-Head Positioning Control with Quadruple-Stage Actuator for HDDs

    Atsumi Takenori , Yabui Shota

    … In this paper, we propose a quadruple-stage actuator system for a magnetic-head positioning system in hard disk drives (HDDs). … The quadruple-stage actuator system consists of a voice coil motor, a milli actuator with two piezoelectric (PZT) elements, a micro actuator with two PZT elements, and a thermal actuator. …

    The Proceedings of the Conference on Information, Intelligence and Precision Equipment : IIP 2019(0), 2D08, 2019

    J-STAGE 

  • Active Stall Control of an Airfoil Using Synthetic Jets  [in Japanese]

    HASHIMOTO Yuta , HASEGAWA Hiroaki

    … The synthetic jet actuator is composed of a speaker or a piezoelectric diaphragm. … The maximum lift increases 16 % and the stall angle can improved at 3 ° by using synthetic jet actuator at <i>Re</i> …

    The Proceedings of Conference of Kanto Branch 2019.25(0), 19B04, 2019

    J-STAGE 

  • Development for the Stress Control System Using Piezo Actuator  [in Japanese]

    OBUCHI Kento , MIYAGAWA Mutsumi , NAKAMURA Hitoshi , OZAWA Takumi

    … As a basic research, we confirm to give local force using the piezoelectric actuator. … The results of the experiments show that it was able to give local force using the piezoelectric actuator. … Also, larger compressive force was obtained by sticking in a straight line rather than tilting and pasting when sandwiching and applying the piezoelectric actuator.</p> …

    The Proceedings of Conference of Kanto Branch 2019.25(0), 18C10, 2019

    J-STAGE 

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