Kondou Ryouji

写真a

Title

Associate Professor

Researcher Number(JSPS Kakenhi)

80404549
To the head of this page.▲

Current Affiliation Organization 【 display / non-display 】

  • Concurrently   University of the Ryukyus   Graduate School of Engineering and Science   Mechanical Systems Engineering   Associate Professor  

  • Duty   University of the Ryukyus   Faculty of Engineering   School of Engineering_Energy and Environment Program   Associate Professor  

To the head of this page.▲

Academic degree 【 display / non-display 】

  • Okayama University -  Doctor of Engineering

  • University of the Ryukyus -  Master (Engineering)

To the head of this page.▲

External Career 【 display / non-display 】

  • 2007.08
    -
    2017.03

    University of the Ryukyus, Faculty of Engineering, Department of Mechanical Systems Engineering, Mechanics and System Control, Associate Professor  

  • 2017.04
    　
    　

    University of the Ryukyus, Faculty of Engineering, Department of Engineering, Associate Professor  

To the head of this page.▲

Research Interests 【 display / non-display 】

  • Plasticity,Deformation Processing

  • 計算力学

  • 材料力学

To the head of this page.▲

Research Areas 【 display / non-display 】

  • Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Mechanics of materials and materials

To the head of this page.▲

Research Theme 【 display / non-display 】

  • Multi-Scale Analysis of Slip Deformation and Dislocation in Polycrystalline Material

  • Multi-Scale Analysis of Fatigue Phenomena and Dislocation in Polycrystalline Material

  • Multiphysics Analysis of Phase-Transformation and Elastic-plastic deformation in Polycrystalline Material

  • Optimal design of mechanical parts and 3D-CAD with Onshape

  • Development of Grain Refinement and Texture Control Technique of Polycrystalline Material

display all >>

To the head of this page.▲

Published Papers 【 display / non-display 】

  • 2C07 Limitations and Causes of Mechanical Design Drafting and 3D-CAD Exercises for Elementary and Middle School Students

    KONDOU Ryouji, KONDO Taishi, IKEDA Hiroto, ISOMOTO Kensei, CHINWEZE Tatsunosuke Daniel, FUKUMITSU Yuto

    Proceedings of Annual Conference of Japanese Society for Engineering Education ( Japanese Society for Engineering Education )  2025 ( 0 ) 134 - 135   2025 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

  • Practice and effectiveness of basic drafting assignments using the "Extrude" feature of Onshape

    Ryouji KONDOU, Taishi KONDO, Shoto KAWASAKI, Shota NARISOKO, Akihiro FUJIKAWA, Masato GANEKO

    Journal of JSEE ( Japanese Society for Engineering Education )  72 ( 5 ) 105 - 110   2024.09 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

    　View Summary

    The authors attempted to create a manual on mechanical design drafting and 3D-CAD operation using Onshape for elementary and junior high school students. The manual was reviewed through actual verification work carried out by junior high school students and university students in the author's laboratory. By utilizing Onshape's extrusion function, basic drafting tasks in the field of mechanical design and drafting, such as cylinders, V-shaped blocks, and connecting rods, were constructed. These drawings of cylinders, V-shaped blocks, and connecting rods were combined with Onshape account registration, setup, printing 2D-CAD drawings from 3D-CAD drawings, and assembly drawings to complete a total of seven lectures. This corresponds to a quarter system (a 4-term system). The results of the study confirmed that even junior high school students who cannot read three-view diagrams can learn how to operate Onshape if an operation manual is prepared for them. Furthermore, the effectiveness of the system was verified by employing the operation manuals and basic drafting assignments created in the engineering design exercises.

  • 3B13 Proposal to Improve Exercises to Increase Achievement of Learning and Educational Goals for 3D-CAD with Onshape

    KONDOU Ryouji, FUJII Akira, NAGAMURA Masaya, KONDO Taishi, GANEKO Masato, TSUNODA Asahi

    Proceedings of Annual Conference of Japanese Society for Engineering Education ( Japanese Society for Engineering Education )  2024 ( 0 ) 294 - 295   2024 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

  • Examination of Distance Learning Assignments in Mechanical Design Drafting and 3D-CAD by using Onshape

    KONDOU Ryouji, MATSUI Youki, TOKESHI Kai, GANEKO Masato, MIYAGI Noriyoshi

    Journal of JSEE ( Japanese Society for Engineering Education )  71 ( 2 ) 2_130 - 2_134   2023 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

    　View Summary

    The selection criteria and the selection results of a distance learning assignments on “mechanical design and drafting" considering the “Corona disaster" and assignments by using Onshape, such as the Shako vise and manual winch are studied, were examined through the actual confirmation work by the students in the author' s laboratory. It was found that Onshape was effective for distance lectures on mechanical design and drafting, and for providing an environment for conducting collaborative assignments. However, it also became clear that there are technical issues to consider when using Onshape to perform the drafting of a classic manual winch. The actual lecture management was conducted in collaboration with the university's technical staff. The effectiveness of the collaborative lecture by the teaching staff and technical staff is described.

  • VS06 Mechanical design drafting and 3D-CAD for elementary and middle school students by Onshape

    KONDOU Ryouji, KONDO Taishi, KAWASAKI Shoto, NARISOKO Shota, FUJIKAWA Akihiro

    Proceedings of Annual Conference of Japanese Society for Engineering Education ( Japanese Society for Engineering Education )  2023 ( 0 ) 276 - 277   2023 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

display all >>

To the head of this page.▲

Presentations 【 display / non-display 】

  • Proposal and Effectiveness to the Improvement of the Achievement Rate of Learning and Education Goals of 3D-CAD Exercises Using Onshape

    Ryouji KONDOU, Taishi KONDO, Akira FUJII, Masaya NAGAMURA, Asahi TSUNODA, Masato GANEKO

    2025 Annual Conference of JSME  2025.09  -  2025.09 

  • Limitations and Causes of Mechanical Design Drafting and 3D-CAD Exercises for Elementary and Middle School Students

    Ryouji KONDOU, Taishi KONDO, Hiroto IKEDA, Kensei ISOMOTO, Tatsunosuke Daniel CHINWEZE, Yuto F., UKUMITSU

    The 73rd Annual Conference and Engineering Education Research Symposium of the Japan Society for Engineering Education  2025.08  -  2025.08 

  • Proposal to Improve Exercises to Increase Achievement of Learning and Educational Goals for 3D-CAD with Onshape

    Ryouji KONDOU, Taishi KONDO, Asahi TSUNODA, Akira FUJII, Masaya Nagamura, Masato GANEKO

    2024.09  -  2024.09 

  • 3B13 Proposal to Improve Exercises to Increase Achievement of Learning and Educational Goals for 3D-CAD with Onshape

    KONDOU Ryouji, KONDO Taishi, TSUNODA Asahi, FUJII Akira, NAGAMURA Masaya, GANEKO Masato

    Proceedings of Annual Conference of Japanese Society for Engineering Education  2024  -  2024 

    CiNii Research

  • Mechanical design drafting and 3D-CAD for elementary and middle school students

    2023.09  -  2023.09 

display all >>

To the head of this page.▲

SDGs 【 display / non-display 】

  • 金属多重結晶のすべり変形と転位の運動・蓄積のマルチスケール解析
    金属多重結晶の繰り返し変形に伴う疲労現象と転位の運動・蓄積のマルチスケール解析
    金属多重結晶の相変態と弾塑性変形のマルチフィジックス解析
    Onshapeによる機械部品の最適設計と3D-CAD
    金属多重結晶の集合組織制御と結晶粒微細化を伴う塑性加工技術の開発

To the head of this page.▲