| 摘要 |
PROBLEM TO BE SOLVED: To easily and securely design the optimal shape of a structure. SOLUTION: A cushion shape Mi maximizing rigidity when the volume of the cushion is Vi is detected (step S4) and the maximum deceleration Gi of a matter to be cushioned is detected concerning this detected shape Mi (step S5) to record a relationship between the volume Vi and the maximum deceleration Gi (step S6). This processing is performed by increasing the volume Vi dV by dV to record the relationship between the volume of the cushion and the maximum delay. When the maximum deceleration Gi becomes the volume of the cushion satisfying a design allowable value GMAX (step S7), the minimum value of the cushion volume making the maximum deceleration Gi satisfy the value GMAX on the basis of the correlation between these detected from the recorded volume Vi and the maximum deceleration Gi is detected (step S11) to detect the shape of the cushion maximizing the rigidity when the volume of the cushion is minimum (step S12). This is the optimal shape of the structure which is sought for.
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