Development and application of a computational motion analysis system.

计算运动分析系统的开发和应用。

• 批准号: 11680011
• 负责人: ASAI Takeshi
• 金额: $ 2.24万
• 依托单位: Yamagata University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2000
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11680011/
• 关键词: computational science; computer; simulation; sports; motion analysis; human model; soccer; curve; 身体運動; 有限要素法; ボール; 人体モデル; モーションキャプチャ

The purpose of this study is to develop the Digital Human Model and a computational motion analysis system using CAE system, and evaluate the availability for some motion analysis solutions. The Digital Human Model was produced with image-based 3D digitized system. The human model in this study were two types of an adult man and an adult woman. The Human model was described by IGES file format, and which shape was very simple. The volume of the Human Body was about 530K byte by IGES file format, and the volume of that on MSC/PATRAN data base was about 5.5M byte. The characterstics of this model was to easy modifying and utilization. The graphical reality of this model was unequal to other CG model. It was considered that the Digital Human Model in this study was available for several CAE system within some limitations. It is possible to download the digital human model from the web site(http : //www.e.vamagata-u ac.jp/〜asai/index.html). From the finite element analysis of the stress and pressure distributions in the infront curve kick in soccer, a high intensity compressive stress was observed on the metatarsal, navicular and cuneiform regions. The release angle of the kicked ball in the infront curve kick was smaller than that of other type kicks in simulation. From the computational fluid dynamics(CFD)analysis about a curve ball in soccer. The aerodynamic lift coefficient increased as the spin ratio(revolution ratio)increased at 25 m/s in this simulation. The aerodynamic lift coefficient decreased as the Reynolds number was increased at 50 rad/s in this simulation. In the case of the spin ratio defined at 50 rad/s and the ball velocity defined at 25 m/s, the Magnus force on the soccer ball was estimated to be 3.05 N.

本研究的目的是利用CAE系统开发数字化人体模型和计算运动分析系统，并评估一些运动分析解决方案的可用性。数字人体模型是利用基于图像的三维数字化系统生成的。本研究中的人类模型是两种类型的成年男性和成年女性。人体模型采用IGES文件格式描述，形状简单。按IGES文件格式计算，人体体积约为530 K字节，MSC/PATRAN数据库中人体体积约为5.5M字节。该模型的特点是易于修改和使用。该模型的图形真实性与其他CG模型不相同。认为本研究中的数字人体模型在一定限度内适用于多种CAE系统。可以从网站（http：//www.example.comac.jp/indexasai/index.html）下载数字人模型。//www.e.vamagata-u通过对足球前曲踢过程中应力和压力分布的有限元分析，发现在跖骨、舟骨和楔骨区域存在较高的压应力。在模拟中，前曲腿的出球角度小于其他类型的出球角度。从计算流体力学（CFD）分析足球中的曲线球。在该模拟中，在25 m/s时，气动升力系数随着尾旋比（转速比）的增加而增加。在50 rad/s时，气动升力系数随雷诺数的增加而减小。在自旋比定义为50 rad/s和球速度定义为25 m/s的情况下，足球上的马格努斯力估计为3.05 N。

项目成果

浅井武: "サッカーにおけるインステップキックとカーブキックの比較"バイオメカニクス研究. 3・2. 111-118 (1999)

浅井武：“足球中的内步踢和曲线踢的比较”生物力学研究3·2（1999）。

T.Asai,O.Murakami and M.Nasako: "Comparison of curve ball kick with instep kick in football."Development and Innovation, A.J.Subic and S.J.Haake ed., Blackwell Science. Vol.3. 487-494 (2000)

T.Asai、O.Murakami 和 M.Nasako：“足球中曲线球踢与脚背踢的比较。”发展与创新，A.J.Subic 和 S.J.Haake 编辑，Blackwell Science。

浅井武,赤塚孝雄: "サッカーの物理"パリティ. Vol.14-4. 33-42 (1999)

Takeshi Asai，Takao Akatsuka：《足球物理学》第 14-4 卷（1999 年）。

T.Asai, O.Murakami and M.Nasako: "Comparison of curve ball kick with instep kick in football."The Engineering of Sport, Reserch, Development and Innovation, A.J.Subic and S.J.Haake ed., Blackwell Science. 487-494 (2000)

T.Asai、O.Murakami 和 M.Nasako：“足球中曲线球踢与脚背踢的比较。”运动、研究、发展和创新工程，A.J.Subic 和 S.J.Haake 编辑，Blackwell Science。

浅井武,宮地力,大島義晴,赤塚孝雄: "サッカーのカーブキックに関する計算力学的研究"日本機械学会第13回計算力学講演会講演論文集. 00-17. 701-702 (2000)

Takeshi Asai、Tsutomu Miyaji、Yoshiharu Oshima、Takao Akatsuka：“足球曲线踢球的计算力学研究”日本机械工程师学会第 13 届计算力学会议记录 00-17（2000 年）。