KAWAI Tadao

写真a

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Title

Professor

Laboratory location

Sugimoto Campus

Research Areas 【 display / non-display

Intelligent mechanics/Mechanical systems

Research Career 【 display / non-display

  • Detection of damage of street light by parameter identification

    (Individual) Project Year :

    2016.04
    -
    Today

  • Detection of cavity in concrete structure by impulse test

    (Individual) Project Year :

    2015.04
     
     

  • R&D of monitoring system for bridge performance assessment based on vibration mode analysis

    (Collaboration in Japan) Project Year :

    2015.02
     
     

  • Estimation of damage of infrastructure by image processing

    (Individual) Project Year :

    2014.04
    -
    Today

Association Memberships 【 display / non-display

  • The Society of Plant Engineers Japan

  • The Japan society of Mechanical Engineers

  • The Society of Automotive Engineers of Japan

Committee Memberships 【 display / non-display

  • 2008.05
    -
    2010

    The Society of Plant Engineers Japan   Vice President

  • 2007.05
    -
    2008.04

    The Society of Plant Engineers Japan   President

  • 2006.04
    -
    2006.05

    The Society of Plant Engineers Japan   Vice President

Current Career 【 display / non-display

  • Osaka City University   Graduate School of Engineering   Mechanical and Physical Engineering Course   Professor  

Career 【 display / non-display

  • 2005
    -
    Today

    Osaka City University  

Graduate School 【 display / non-display

  •  
    -
    1982

    Nagoya University  Graduate School, Division of Engineering 

Graduating School 【 display / non-display

  •  
    -
    1980

    Nagoya University   Faculty of Engineering  

 

Published Papers 【 display / non-display

  • STUDTY ON SCOUR EVALUATION METHOD OF PIER BASED ON VIBRATION MODE

    Masataka ISHIZAWA,Tadao KAWAI,Masahide MATSUMURA,Takashi YAMAGUCHI

    Steel construction Engineering  25 ( 98 ) 67 - 79 2018.06  [Refereed]

  • 物理モデルを用いた回転軸系の動的挙動の解析 ―ミスアライメントを持つカップリングの評価―

    新家誠広, 川合忠雄

    日本設備管理学会誌  29 ( 2 ) 31 - 36 2017.07  [Refereed]

  • データセンター用空調機を対象とする凝縮器の診断に関する研究

    川合 忠雄, 小林 隼也, 森永 洋喜, 月元 秀樹, 宇田川 陽介, 関口 圭輔

    公益社団法人 空気調和・衛生工学会 空気調和・衛生工学会 論文集  41 ( 235 ) 1 - 8 2016  [Refereed]

     View Summary

    <p>本論文では,データセンター用空調機を対象とする凝縮器の洗浄時期を適正化するために,空調機の運転データを用いて凝縮器の汚損状態を診断する手法を検討する。運転データの取得実験は外気温15℃,35℃の環境下で行われた。凝縮器における冷媒-空気-凝縮器間の熱収支の関係式に基づき,実験により取得した運転データを入力と出力に分け,凝縮器が正常時のデータを用いて凝縮器をモデル化する。そのモデルに汚損状態を診断したいデータを入力し,実際の出力とモデルの出力との差を評価することで,凝縮器の汚損状態を診断する。結果,外気温によらず,凝縮器の汚損に伴い両出力の差が大きくなり,汚損状態を診断できることが分かった。</p>

    DOI CiNii

  • Development of Cutting Force Measurement on x-y plane in Milling Operation with Micro End mill

    Masakazu NONAKA

    Journal of the Japan Society for Precision Engineering  81 ( 1 ) 86 - 90 2015.01

  • 微細エンドミル加工における<i>xy</i>平面内の切削負荷計測手法の開発

    野中 正和, 川合 忠雄

    公益社団法人 精密工学会 精密工学会誌  81 ( 1 ) 86 - 90 2015  [Refereed]

     View Summary

    Milling is one of the most important metal cutting processes. If the cutting force could be measured, we can make cutting process optimum, prevent tool breakage, and improve efficiency of process. Especially in the case of using a micro end mill, it is very difficult to identify whether cutting process is good or not.<br>In this paper, a cutting force measurement technique by using image processing was proposed. In the technique, we captured images of end mill by a small CCD camera and mirrors during cutting process from <i>x</i> and <i>y</i> direction to determine deflection of the tool and then estimated cutting force in <i>x</i>-<i>y</i> plane. Finally small cutting force was estimated accurately.

    DOI CiNii

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Review Papers (Misc) 【 display / non-display

  • モデルに基づくコージェネレーションシステムの診断(第1報、モデルの構築)

    川合 忠雄

    日本設備管理学会誌  19 ( 2 ) 76 - 81 2007  [Refereed]  [Invited]

  • レシプロ型コンプレッサの異常診断

    川合 忠雄

    日本設備管理学会誌  19 ( 2 ) 47 - 52 2007  [Refereed]  [Invited]

  • モデルに基づくコージェネレーションシステムの診断(第2報、診断手法の提案)

    川合 忠雄

    日本設備管理学会誌  19 ( 2 ) 82 - 87 2007  [Refereed]  [Invited]

  • 画像処理を用いたはりのパラメータ同定(第6報、直交関数系を用いた手法における同定精度の向上)

    川合 忠雄, 野寄 哲史

    日本機械学会論文集  72 ( 717 ) 1500 - 1505 2006  [Refereed]  [Invited]

    DOI CiNii J-GLOBAL

Conference Activities & Talks 【 display / non-display

  • Application of Modelica to Diagnosis of Machine and Its Development for Digital Twin

    Tadao Kawai  [Invited]

    Modelica Users’ Conference 2019 Japan  2019.11 

  • Modeling of Rotating Shaft with Partial Rubbing

    Tatsuro Ishibashi,Tadao Kawai

    13th International Modelica Conference 2019  2019.03 

  • Inspection of Void in Concrete by Impact Test

    2018.08 

  • Modelling of Asymmetric Rotor and Cracked Shaft

    Tatsuro Ishibashi, Atsushi Yoshida, Tadao Kawai

    The 2nd Japanese Modelica Conference  2018.05 

  • Modelling of Oil Film Bearings

    Tatsuro Ishibashi,Tadao Kawai

    The 2nd Japanese Modelica Conference  2018.05 

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Grant-in-Aid for Scientific Research 【 display / non-display

  • Development of diagnosis technique using trained model

    Grant-in-Aid for Scientific Research(C) Representative

    Project Year :

    2008.04
    -
    2011.03
     

 

Foreigner acceptance 【 display / non-display

  • Academic year : 2019

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    Number of foreigners accepted
    0
    Number of International Students
    2

    China

  • Academic year : 2018

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    Number of International Students
    1

    China

  • Academic year : 2017

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    Number of International Students
    2

    China