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Innovation of snow sliding performance and clarification of snow sliding mechanism using ultrasonic vibration of CNT composite sheet

Research Project

Project/Area Number 18K03905
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 18040:Machine elements and tribology-related
Research InstitutionNagano National College of Technology

Principal Investigator

Yanagisawa Kenji  長野工業高等専門学校, 機械工学科, 准教授 (90585580)

Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywordsはっ水性 / 滑水性 / 滑雪性 / トライボロジー / 超音波振動 / カーボンナノチューブ / 超はっ水性 / 振動 / シリコーン
Outline of Final Research Achievements

In order to make snow slide off roofs in heavy snowfall areas by vibration, an attempt was made to improve the snow sliding performance from the viewpoints of both materials and vibration. This study attempted to clarify the mechanism of snow sliding during vibration from two viewpoints (solid lubrication and boundary lubrication): the reduction of solid friction and the improvement of snow sliding properties due to vibration. As a result, a negative correlation was found between the vibration acceleration and the friction force between the snow and the material. The results have great social significance because the friction state between snow and materials was found to be solid lubrication, which can prevent accidents such as the collapse of steel pylons due to snow.

Academic Significance and Societal Importance of the Research Achievements

振動加振による固体の摩擦低減(固固界面)および滑水性の向上(液固界面)については,これまでにそのメカニズムが定性的に説明されているが,振動加振による滑雪性の向上(固固,液固界面の混在)についてはまだ明らかになっていない.本研究により滑雪メカニズムが明らかになり,様々な雪質(湿り雪でも乾き雪でも)でより良好な滑雪性を示す最適な超音波振動の周波数や振幅が明らかになることで,様々な雪質の着雪氷防止技術の飛躍的な発展が期待できる.さらに水や雪氷と構造物の界面に超音波振動を加振するための新たな応用研究創出にもつながることは学術的意義も高く,固体表面の摩擦メカニズム解明の一助にもなる.

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (28 results)

All 2022 2021 2020 2019

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 1 results) Presentation (22 results) (of which Int'l Joint Research: 4 results) Book (2 results)

  • [Journal Article] Basic Evaluation for Sliding Behavior of Silicone Sheet with Surface Topography Using Equation of Motion2022

    • Author(s)
      Yanagisawa Kenji、Saito Chinatsu、Iwashita Wataru、Okumura Norihiro
    • Journal Title

      Proceedings of the 3rd Malaysian International Tribology Conference

      Volume: 1 Pages: 86-89

    • DOI

      10.1007/978-981-16-9949-8_16

    • ISBN
      9789811699481, 9789811699498
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Evaluation for Sliding Behavior of Water Droplets on Surface of VGCF Composited Silicone Sheet2020

    • Author(s)
      Kneji Yanagisawa, Ren Goto, Chinatsu Saito, Yuri Gomi and Hiroo Taura
    • Journal Title

      Transactions on GIGAKU

      Volume: 7, 1

    • NAID

      130007879131

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 各種はっ水性シートの付着雪垂直せん断試験について2020

    • Author(s)
      柳澤憲史,安達 聖,佐藤研吾
    • Journal Title

      寒地技術論文・報告書

      Volume: 36 Pages: 45-48

    • NAID

      40022523225

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] 各種はっ水性シートの着雪滑雪性能測定2019

    • Author(s)
      柳澤憲史,安達 聖,佐藤研吾
    • Journal Title

      寒地技術論文・報告書

      Volume: 35 Pages: 27-30

    • NAID

      40022196781

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] 三重線の縦横比を考慮した液体架橋のせん断力に関する近似計算法2021

    • Author(s)
      斎藤千夏,田浦裕生,柳澤憲史,黒岩岳大
    • Organizer
      日本トライボロジー学会,トライボロジー会議2021春
    • Related Report
      2021 Annual Research Report
  • [Presentation] Basic Evaluation for Sliding Behavior of Silicone Sheet with Surface Topography Using Equation of Motion, Malaysian International Tribology Conference2021

    • Author(s)
      Kenji Yanagisawa
    • Organizer
      THE 3rd MALAYSIAN INTERNATIONAL TRIBOLOGY CONFERENCE
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 超音波振動切削による表面テクスチャのはっ水性及び滑水性評価2021

    • Author(s)
      若林蒼,柳澤憲史
    • Organizer
      令和3年度 高専-長岡技術科学大(機械系)教員交流研究集会技学セミナー2021ポスター発表会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 氷とシリコーンシートの間の摩擦力測定とスティックスリップ現象の観察2021

    • Author(s)
      大峽佑介,柳澤憲史
    • Organizer
      令和3年度 高専-長岡技術科学大(機械系)教員交流研究集会技学セミナー2021ポスター発表会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 斜面を等速で滑る水滴の界面抵抗2021

    • Author(s)
      出田颯人,柳澤憲史,斎藤千夏
    • Organizer
      2021年度日本機械学会年次大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] シリコーンシート表面上の水滴の水平せん断力に及ぼす接触線形状の影響2021

    • Author(s)
      斎藤千夏,柳澤憲史,田浦裕生
    • Organizer
      2021年度日本機械学会年次大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 球状曲率構造を有するシリコーン被膜のはっ水性が水滴凍結過程に及ぼす影響2021

    • Author(s)
      下倉弘暉,柳澤憲史,山口昌樹
    • Organizer
      2021年度日本機械学会年次大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Measurement of friction force and observation of ice motion between ice and silicone sheet2021

    • Author(s)
      Yusuke Oba, Kenji Yanagisawa
    • Organizer
      The 6th International Conference on "Science of Technology Innovation" 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Relationship between CNT orientation of nanocarbon fiber silicone-matrix composites and sliding property of water droplet2021

    • Author(s)
      Ren Goto, Kenji Yanagisawa
    • Organizer
      The 6th International Conference on "Science of Technology Innovation" 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] シリコーンゴム斜面を滑る低粘度液滴の界面抵抗に滑り速度が及ぼす影響2021

    • Author(s)
      斎藤千夏,柳澤憲史,岩下航,奥村紀浩
    • Organizer
      日本トライボロジー学会,トライボロジー会議2021秋松江
    • Related Report
      2021 Annual Research Report
  • [Presentation] 氷-シリコーン樹脂界面の摩擦減少におよぼす振動の影響2021

    • Author(s)
      柳澤憲史
    • Organizer
      日本トライボロジー学会,トライボロジー会議2021秋松江
    • Related Report
      2021 Annual Research Report
  • [Presentation] 滑水性シリコーン皮膜の開発2021

    • Author(s)
      後藤蓮,柳澤憲史
    • Organizer
      日本機械学会第20回機素潤滑設計部門講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] シリコーンを塗布した表面と氷の間の摩擦力におよぼす膜厚の影響2021

    • Author(s)
      吉村郁哉,柳澤憲史
    • Organizer
      日本機械学会 北陸信越支部2022年合同講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] シリコーンゴム表面上の水滴の水平引離し力に及ぼす液滴変形の影響2020

    • Author(s)
      柳澤憲史,五味佑理,黒岩岳大,斎藤千夏
    • Organizer
      日本機械学会2020年度年次大会講演論文集
    • Related Report
      2020 Research-status Report
  • [Presentation] シリコーン/CNT複合シートのCNT分散変化が滑水性に及ぼす影響2020

    • Author(s)
      後藤蓮,柳澤憲史
    • Organizer
      日本機械学会2020年度年次大会講演論文集
    • Related Report
      2020 Research-status Report
  • [Presentation] 微細な表面凹凸をもつシリコーンシート斜面とその上を滑り落ちる水滴間の摩擦力の解析2020

    • Author(s)
      斎藤千夏,柳澤憲史,岩下航,奥村紀浩
    • Organizer
      日本機械学会2020年度年次大会講演論文集
    • Related Report
      2020 Research-status Report
  • [Presentation] 振動させたシリコーンシートと3点接触する氷の間の摩擦力測定および界面状況の観察2020

    • Author(s)
      小林誠虎,柳澤憲史
    • Organizer
      トライボロジー会議2020秋 別府
    • Related Report
      2020 Research-status Report
  • [Presentation] 各種はっ水性シートの付着雪垂直せん断試験について2020

    • Author(s)
      柳澤憲史, 安達 聖, 佐藤研吾
    • Organizer
      第36回寒地シンポジウム
    • Related Report
      2020 Research-status Report
  • [Presentation] Evaluation of Dynamic Hydrophobicity on Silicone Sheet with Small Contact Area2019

    • Author(s)
      Kenji Yanagisawa
    • Organizer
      International Tribology Conference 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 各種はっ水性シートの着雪・滑雪性能測定2019

    • Author(s)
      柳澤憲史, 安達 聖, 佐藤研吾
    • Organizer
      第35回寒地シンポジウム
    • Related Report
      2019 Research-status Report
  • [Presentation] 加振によるシリコーンゴムシートと氷球間の摩擦力の変化2019

    • Author(s)
      柳澤憲史,小林誠虎,加藤正幸,市川敬夫
    • Organizer
      日本機械学会 北陸信越支部第56期総会・講演会
    • Related Report
      2018 Research-status Report
  • [Presentation] 着雪防止のための加熱/加振式シリコーンシートのシート温度と滑雪性の関係調査2019

    • Author(s)
      小林昇市,柳澤憲史
    • Organizer
      日本機械学会 北陸信越支部第56期総会・講演会
    • Related Report
      2018 Research-status Report
  • [Book] 超はっ水・超撥油・滑液性表面の技術2021

    • Author(s)
      柳澤憲史他
    • Total Pages
      227
    • Publisher
      サイエンス&テクノロジー株式会社
    • Related Report
      2020 Research-status Report
  • [Book] 高分子材料のトライボロジー制御2020

    • Author(s)
      柳澤憲史他
    • Total Pages
      550
    • Publisher
      株式会社技術情報協会
    • Related Report
      2019 Research-status Report

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Published: 2018-04-23   Modified: 2023-01-30  

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