| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain an optimum solution for the arrangement of a small beam in a short time.SOLUTION: The design method of the frame body includes: a condition input step S2 of inputting a design constraint condition for arranging a small beam 8 on a frame body 2; a group generation step S3 of generating a group 31 consisting of plural types of chromosome information 26 which is numerical information for specifying an arrangement of the small beam 8; and an optimization calculation step S4 of calculating an optimum solution for the arrangement of the small beam 8 on the basis of a genetic algorithm. A computer 1 is input, as the design constraint condition, with plural pieces of small beam arrangement points 19 and a small beam property table 20 in which a small piece property information of plural types for specifying a beam crossing state in a longitudinal direction of the small beam 8 that passes through the small beam arrangement point 19 is defined. The group generation step S3 generates chromosome information 26 including the small beam arrangement point 19 and the small beam property information at the small beam arrangement point 19.</p> |
