Initial condition setting device, initial condition setting method, and program

摘要

An object of the present invention is to obtain an initial condition necessary for collision analysis and springback analysis by obtaining a simple press forming effect as CAD data as it is. An initial condition setting device 10 for CAE analysis based on CAD data for isogeometric analysis, which is a reading unit 110 for reading CAD data, and a decomposition for obtaining surface data by decomposing CAD data in units of surfaces The expansion calculation is performed on the area 120 and the surface data, and the expansion calculation unit 130 for expanding in a flat plate shape, and the plane data expanded in a flat plate shape is translated or rotated in a rigid manner in a rigid manner, without deformation. The coordinates of the vertices of the face data match or approximate the coordinates of the vertices of the face data, and the coordinates of the nodes on the side shared by the face data are matched, or on one side And a lock portion 150 for sharing a node on the other side and obtaining a flat plate-like expanded shape of CAD data. [Selected figure] Figure 29