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Embedding Expressive Functions into Soft Objects and Designing Interactions Based on EHD Fluid Control

Research Project

Project/Area Number 21H04882
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Review Section Medium-sized Section 61:Human informatics and related fields
Research InstitutionThe University of Tokyo

Principal Investigator

Kakehi Yasuaki  東京大学, 大学院情報学環・学際情報学府, 教授 (40500202)

Co-Investigator(Kenkyū-buntansha) 前田 真吾  東京工業大学, 工学院, 教授 (40424808)
Project Period (FY) 2021-04-05 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥42,120,000 (Direct Cost: ¥32,400,000、Indirect Cost: ¥9,720,000)
Fiscal Year 2023: ¥13,000,000 (Direct Cost: ¥10,000,000、Indirect Cost: ¥3,000,000)
Fiscal Year 2022: ¥14,170,000 (Direct Cost: ¥10,900,000、Indirect Cost: ¥3,270,000)
Fiscal Year 2021: ¥14,950,000 (Direct Cost: ¥11,500,000、Indirect Cost: ¥3,450,000)
KeywordsElectrohydrodynamics / 流体制御 / マテリアルインタラクション / フィジカルディスプレイ / ソフトアクチュエータ / プロトタイピング
Outline of Research at the Start

本研究では、布のように柔らかさ・しなやかさを有するモノの中にアクチュエーション(形・動きなどの変化)やディスプレイ(色などの変化)機能を埋め込み、モノを介したマルチモーダルなインタラクションを実現する。Electrohydrodynamics(EHD、電気流体力学)の原理を用いて流体の動きを制御する技術を基盤とし、モノの表面あるいは内部に血管のように流路を張り巡らせることで、モノに対して変形、温冷感覚、色彩変化などを制御できる機能を付与し、新規なヒューマンインタフェースの創出を目指す。

Outline of Final Research Achievements

In this research, we aim to embed actuation and display functions within objects that possess the softness and flexibility by utilizing the principles of Electrohydrodynamics (EHD). Our goal is to achieve multimodal interaction through these objects. As a result, we first modeled the principles of the EHD pump and made it operable at lower voltage. Furthermore, we developed a modular device for prototyping liquid control using EHD. Through liquid control, we created a system capable of controlling deformation, thermal sensations, and color changes, and we implemented applications for human interfaces and art installations.

Academic Significance and Societal Importance of the Research Achievements

従来から工学分野ではEHDアクチュエータの研究が行われてきたが、本研究の貢献の一つはその作りやすさや使いやすさを考慮したデザインが挙げられる。本手法で開発したデジタルファブリケーション機器の利用を想定したEHD回路の制作や無線での制御手法や、ユーザインタフェースとして液体制御を通した騒音の少ないマルチモーダルなインタラクション手法は、ユーザや応用分野の広がりが期待できる。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Comments on the Screening Results   Annual Research Report
  • Research Products

    (17 results)

All 2024 2023 2022 2021 Other

All Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (11 results) (of which Int'l Joint Research: 8 results) Book (1 results) Remarks (3 results)

  • [Journal Article] Pocketable and Smart Electrohydrodynamic Pump for Clothes2023

    • Author(s)
      Kuwajima Yu、Yamaguchi Yuya、Yamada Yuhei、Morita Takafumi、Wiranata Ardi、Minaminosono Ayato、Hosoya Naoki、Kakehi Yasuaki、Maeda Shingo
    • Journal Title

      ACS Applied Materials & Interfaces

      Volume: 16 Issue: 1 Pages: 1883-1891

    • DOI

      10.1021/acsami.3c15274

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] LayerPump: Design and Fabrication of Functional 3D Objects with Built-in Electrohydrodynamics Pumps based on Layered Plates2021

    • Author(s)
      藤井 樹里, 中丸 啓, 筧 康明
    • Journal Title

      Transactions of the Virtual Reality Society of Japan

      Volume: 26 Issue: 4 Pages: 345-354

    • DOI

      10.18974/tvrsj.26.4_345

    • NAID

      130008140917

    • ISSN
      1344-011X, 2423-9593
    • Year and Date
      2021-12-24
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] ChoreoDrops: Manipulation of Water Droplets Using Conductive Line Patterns Sparsely Printed on Paper2024

    • Author(s)
      Yoshimori Yoshikawa, Takafumi Morita, Daiki Shiota, Eiji Iwase, and Yasuaki Kakehi
    • Organizer
      In Proceedings of the Eighteenth International Conference on Tangible, Embedded, and Embodied Interaction (TEI '24). Association for Computing Machinery
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Signs of Water2024

    • Author(s)
      Kuan-Ju Wu, 開元宏樹、筧康明
    • Organizer
      いちかわ芸術祭(招待展示)
    • Related Report
      2023 Annual Research Report
  • [Presentation] see-saw: A Kinetic Installation that Unfolds in Silence Driven by Liquid Flow2023

    • Author(s)
      Takafumi Morita and Yasuaki Kakehi
    • Organizer
      In SIGGRAPH Asia 2023 Art Papers (SA '23)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] EHDポンプを用いたリニアパウチアクチュエータ2023

    • Author(s)
      瀬川空矢、桑島悠、毛澤兵、細矢直基、前田真吾
    • Organizer
      ROBOMECH2023
    • Related Report
      2023 Annual Research Report
  • [Presentation] ChoreoDrops2023

    • Author(s)
      Yoshimori Yoshikawa, Eiji Iwase, Yasuaki Kakehi
    • Organizer
      Ars Electronica Festival 2024 Gadens Exhibition
    • Related Report
      2023 Annual Research Report
  • [Presentation] A Method for Controlling the Continuous Transparency of Three-dimensional Objects Utilizing Mechanical Emulsification2023

    • Author(s)
      Ziyuan Jiang, Takafumi Morita, Kanon Aoyama, Yu Kuwajima, Naoki Hosoya, Shingo Maeda, and Yasuaki Kakehi
    • Organizer
      the Seventeenth International Conference on Tangible, Embedded, and Embodied Interaction (TEI ’23)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] InflatableMod: Untethered and Reconfigurable Inflatable Modules for Tabletop-sized Pneumatic Physical Interfaces.2023

    • Author(s)
      Takafumi Morita, Ziyuan Jiang, Kanon Aoyama, Ayato Minaminosono, Yu Kuwajima, Naoki Hosoya, Shingo Maeda, and Yasuaki Kakehi
    • Organizer
      the 2023 CHI Conference on Human Factors in Computing Systems (CHI ’23)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Demonstrating InflatableMod: Untethered and Reconfigurable Inflatable Modules for Tabletop-sized Pneumatic Physical Interfaces.2023

    • Author(s)
      Takafumi Morita, Ziyuan Jiang, Kanon Aoyama, Ayato Minaminosono, Yu Kuwajima, Naoki Hosoya, Shingo Maeda, and Yasuaki Kakehi
    • Organizer
      Extended Abstracts of the 2023 CHI Conference on Human Factors in Computing Systems (CHI EA ’23)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] HydroMod: Constructive Modules for Prototyping Hydraulic Physical Interfaces2022

    • Author(s)
      Takafumi Morita, Yu Kuwajima, Ayato Minaminosono, Shingo Maeda, and Yasuaki Kakehi
    • Organizer
      the 2022 CHI Conference on Human Factors in Computing Systems (CHI ’22)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Demonstrating HydroMod: Constructive Modules for Prototyping Hydraulic Physical Interfaces2022

    • Author(s)
      Takafumi Morita, Yu Kuwajima, Ayato Minaminosono, Shingo Maeda, and Yasuaki Kakehi
    • Organizer
      Extended Abstracts of the 2022 CHI Conference on Human Factors in Computing Systems (CHI EA ’22)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] see-saw2022

    • Author(s)
      Takafumi Morita and Yasuaki Kakehi
    • Organizer
      Ars Electronica Festival2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Book] デジタルファブリケーションとメディア(第3章「インタラクティブなものづくり」を執筆)2024

    • Author(s)
      筧康明
    • Total Pages
      47
    • Publisher
      コロナ社
    • ISBN
      9784339013764
    • Related Report
      2023 Annual Research Report
  • [Remarks] HydroMod

    • URL

      https://xlab.iii.u-tokyo.ac.jp/projects/hydromod/

    • Related Report
      2022 Annual Research Report
  • [Remarks] InflatableMod

    • URL

      https://xlab.iii.u-tokyo.ac.jp/projects/inflatablemod/

    • Related Report
      2022 Annual Research Report
  • [Remarks] LayerPump

    • URL

      https://xlab.iii.u-tokyo.ac.jp/projects/layerpump/

    • Related Report
      2021 Annual Research Report

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Published: 2021-04-28   Modified: 2025-01-30  

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