703 チホノフの適切化法を用いた境界要素法による溶接残留応力分布の同定法(OS7. 逆問題解析手法の開発と最新応用(1),オーガナイズドセッション講演)

概要

論文の詳細を見る
This paper deals with an inverse problem for estimating the magnitude of the residual stress in a butt-welded plate from measured data This paper uses Tikhonov's regularization to improve the accuracy of the estimated values of the inherent strains in the butt-welded plate. Numerical simulations were conducted for an analysis model which was the same with that used in the previous paper. The inherent strains in the butt-welded plate were estimated from a few measured stresses with measurement errors using Tikhonov's regularization. The discrepancy principle was applied for estimating a proper value of the regularization parameter. It was found that Tikhonov's regularization and the discrepancy principle were usefi.il in estimating the residual stress in the butt-welded plate.
一般社団法人日本機械学会の論文
2010-09-23