CALCULATION SYSTEM, CALCULATION PROGRAM AND CALCULATION METHOD FOR NATURAL DEFORMATION DATA

摘要

PROBLEM TO BE SOLVED: To use a relatively simple and easy way to calculate natural deformation data for a first member and a second member to be welded mutually.SOLUTION: A calculation system for natural deformation data comprises: FEM analysis means for applying a predetermined value of natural deformation data to each analysis model of first and second members, and calculating welding deformation; first positional data variation calculation means for calculating a variation of positional data for a measuring point pair on the basis of the welding deformation; natural deformation response matrix calculation means for calculating a natural deformation response matrix from the variation of positional data for the measurement point pair calculated by the calculation means and from the predetermined value of the natural deformation data; second positional data variation calculation means for calculating the variation of the positional data based on a position actually measured before and after welding the measurement point pair of the first and second members; and natural deformation data calculation means for calculating the natural deformation data from the variation of the positional data for the measurement point pair calculated by the calculation means and from the natural deformation response matrix.