On the Accuracy of Shape Sensitivity Derivatives
暂无分享,去创建一个
Six methods for calculating shape sensitivity derivatives are compared for a two-material beam problem with a moving interface. It is found that as the finite-element mesh is refined, displacement sensitivity derivatives converge more slowly that the displacement themselves. Five of the methods agree fairly well, but the adjoint variational surface method provides substantially different results. However, the difference is found to reflect convergence from another direction to the same answer, rather than reduced accuracy.
[1] Raphael T. Haftka,et al. Accuracy analysis of the semi-analytical method for shape sensitivity calculation , 1988 .
[2] Kyung K. Choi,et al. Shape design sensitivity analysis of built-up structures , 1986 .
[3] Raphael T. Haftka,et al. Two Approaches to Sensitivity Analysis for Shape Variation of Structures , 1988 .