Study of Accurate Assembly of Hull Structures using CAE

基于CAE的船体结构精确装配研究

• 批准号: 10650907
• 负责人: OKUMOTO Yasuhisa
• 金额: $ 2.37万
• 依托单位: Kinki University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1998
• 资助国家: 日本
• 起止时间: 1998 至 2000
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10650907/
• 关键词: Welding deformation; ANSYS; Measurement system; Positioning simulation; Optimization; Human model; JACK; Human body load; ブロック塔載; シミュレーション; 溶接作業; 人体負荷; 作業安全; ひずみ取り; 非線形FEM; ANSYS; デジタルカメラ; 3D計測; ブロック搭載; Jack; 熱弾塑性解析; 工作精度; 非線形FEM解析 /

(1) Simulation of Welding Deformation"ANSYS", general-purpose FEM program of thermal analysis, was introduced for a EWS and the method to simulate the heat deformation and residual stress due to welding has been established. (Paper no.1,2,3,6,10,11,12,13,14,16, and 17)(2) Simulation of StraighteningThe simulation method to straighten the deformed plate due to welding has been established by non-linear finite element analysis using "ANSYS", for both line heating and point heating. Furthermore, the correction method using a press roller has been analyzed and the necessary press load for the correction has been proposed for the machine system. (Paper no. 2,6,12,15, and 19)(3) Development of Accurate Measurement SystemShape measurements of a hull block using a digital camera on the market were carried out, combined with 3 dimensional shape analysis software, and the measurement accuracy has been confirmed. It was understood that a further study is necessary to obtain a practical accuracy. (not published)(4) Positioning Simulation of Blocks"AI" methods such as neural network and genetic algorithm were applied to optimize the positioning of the hull blocks at the erection stage. Furthermore, the deformation of hull structure on the building dock has been simulated using a finite element analysis. (Paper no. 4,7,9, and 14)(5) Work Simulation using Human Model"JACK", general-purpose computer simulation software of a human model, was introduced, and shipbuilding works are analyzed, focused on the body loads of the workers. (Paper no. 5,8,14, and 18)

(1)焊接变形模拟引入了通用热分析有限元程序ANSYS，建立了模拟焊接热变形和残余应力的方法。(没有。（1、2、3、6、10、11、12、13、14、16、17）校直仿真应用ANSYS软件，通过非线性有限元分析，建立了直线加热和点加热对焊接变形板进行校直的仿真方法。在此基础上，分析了采用压辊进行修正的方法，并对机床系统提出了修正所需的压载荷。(没有。2、6、12、15、19)(3)精确测量系统的开发利用市场上的数码相机，结合三维形状分析软件对船体块体进行了形状测量，并验证了测量精度。据了解，为了获得实际的准确性，需要进一步的研究。(4)砌块定位仿真应用神经网络、遗传算法等“AI”方法优化船体砌块安装阶段的定位。在此基础上，采用有限元方法模拟了船舶船坞船体结构的变形。(没有。4、7、9、14)(5)介绍了通用的人体模型计算机仿真软件“JACK”的人体模型工作仿真，并对船舶工程进行了分析，重点分析了工人的身体负荷。(没有。5、8、14和18)

项目成果

Y.Okumoto: "Analysis of Residual Stress and Deformation Due to Welding"/OMAE'98. 1241-1-7 (1998)

Y.Okumoto：“焊接引起的残余应力和变形的分析”/OMAE98。

Y.Okumoto, E.Yanai and S.Matsuzaki: "Angular Distortion due to Fillet Welding and It's Straightening (in Japanese)"Transactions of The West-Japan Society of Naval Architects. Vol.97. 167-175 (2000)

Y.Okumoto、E.Yanai 和 S.Matsuzaki：“角焊引起的角变形及其矫直（日语）”西日本造船学会会刊。

奥本,畝,村瀬: "バーチャルヒューマンモデルによる作業性,安全性の研究"日本造船学会論文集. 188. 745-753 (2000)

Okumoto、Tsune、Murase：“使用虚拟人体模型的可操作性和安全性研究”日本造船学会论文集 188. 745-753 (2000)。

Y.Okumoto and T.Yoshida: "Simulation of Shipwright Using Neural Network (in Japanese)"Journal of The Society of Naval Architects of Japan. No.186. 689-695 (1999)

Y.Okumoto 和 T.Yoshida：“使用神经网络模拟造船工（日语）”日本造船学会杂志。

N.Uesugi, N.Hata, K.Hiyoku and Y.Okumoto: "tudy of Productivity Improvement in Shipbuilding Using Product Model(in Japanese)"Keieikougaku-jissen-kennkyu-ronbunsyu. No.7. 18-26 (2000)

N.Uesugi、N.Hata、K.Hiyoku 和 Y.Okumoto：“使用产品模型提高造船生产率的研究（日语）”Keieikougaku-jissen-kennkyu-ronbonsyu。