複数荷重条件下での構造物の形状決定問題 : 疲れを考慮して制約条件を設定する場合

概要

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A shape of determination method of structures is proposed for the multiple loading conditions. The basic idea of this is to minimize a volume under the fatigue damage constraint for multiple loads, such as a static one plus an alternating one, or more than two sets of alternating ones. In these cases, the constraint conditions at each stress evaluating point are expressed with sum of the n-th power of the stress values for respective loading conditions, where the value of n depends on the material used, or the type of loading. The solutions of these minimization problems are obtained using the multiplier method which belongs to the transformation method, plus the gradient method. Three basic models are solved using this method, and the final shapes obtained are what satisfy the equality of all constraint conditions.
一般社団法人日本機械学会の論文
1986-04-25