SIMULATION METHOD, SIMULATION METHOD USING MBD PROGRAM, NUMERICAL ANALYSIS DEVICE, NUMERICAL ANALYSIS SYSTEM FOR MDB, NUMERICAL ANALYSIS PROGRAM, AND MBD PROGRAM

摘要

[Problem] To provide a 3D simulation model that can be implemented by an MBD program. [Solution] According to the present invention, a computer: partitions an analysis region into a plurality of partitioned regions; generates a partitioned region calculation data model that, as quantities that do not require the coordinates of the vertices of the partitioned regions and the connectivity of said vertices, includes the volumes of the partitioned regions and partitioned region characteristic quantities that indicate the characteristics of adjacent partitioned regions; aggregates pluralities of partitioned regions to generate a required number of aggregate regions; generates an aggregate region calculation data model that, as quantities that do not require the coordinates of the vertices of the aggregate regions and the connectivity of said vertices, includes the volumes of the aggregate regions and aggregate region characteristic quantities that indicate the characteristics of adjacent aggregate regions; and, on the basis of a physical property value for the analysis region and of the aggregate region calculation data model, calculates a conductance that represents the characteristics of the movement of a physical quantity between aggregate regions and to the outside of the analysis region and a capacitance that represents the characteristics of a cumulation of the physical quantity for the aggregate regions.