Study of Accurate Assembly of Hull Structures using CAE

(1)介绍了通用有限元热分析程序ANSYS，建立了焊接热变形和焊接残余应力的模拟方法。（论文号1、2、3、6、10、11、12、13、14、16、17）（2）矫直的模拟利用ANSYS软件，对线加热和点加热两种情况，通过非线性有限元分析，建立了对焊接变形板材进行矫直的模拟方法。此外，还分析了采用压辊进行校正的方法，并提出了机床系统进行校正所需的压力。（论文编号2、6、12、15、19）（3）精确测量系统的研制利用市场上的数码相机，结合三维形状分析软件，对某船体分段进行了形状测量，验证了测量精度。据了解，有必要进行进一步的研究，以获得实际的准确性。(not（4）分段定位仿真采用神经网络、遗传算法等人工智能方法对船体分段在安装阶段的定位进行优化。并对建造船坞时船体结构的变形进行了有限元模拟。（4、7、9、14号论文）（5）介绍了人体模型的通用计算机模拟软件“JACK”的人体模型作业模拟，并以作业人员的身体负荷为中心，对造船作业进行了分析。（第5、8、14和18号文件）

(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)